Switches

Switches are sensors with an electrical contact output at a specific pressure. Used on air, non-corrosive gas or liquid service compatible with wetted parts. Applications vary from Single Pressure Switch to switch.

Series DA/DS Bourdon Tube Pressure Switches

Pressure Ranges to 8000 psi (551.6 bar)

Customers tell us that the Series DA/DS Bourdon Tube Pressure Switches are the best pressure switches made. The Mercoid DA/DS Series is one of the world’s broadest lines of pressure switches. The DA/DS Series has extremely high sensitivity and great repeatability. The DA Models are equipped with two external adjustments, one for setting high pressure operating point, the other for setting low pressure operating point. Deadband, the difference between high and low setpoints, is adjustable over the full-scale. The DS Models are equipped with a single external adjustment for setting operating point only. For mercury-free switches, choose between the snap action switch or hermetically sealed snap action switch. Hermetically sealed mercury switch also available.

Product Applications

Compressors
Mechanical HVAC or process equipment
Pump control

Models & Ordering

Model	Description
DA-21-153-10S	Pressure switch, 403SS Bourdon tube, range 25-600 psig, 25 psig min. deadband.
DA-21-153-11S	Pressure switch, 403SS Bourdon tube, range 50-1000 psig, 60 psig min. deadband.
DA-21-153-12S	Pressure switch, 403SS Bourdon tube, range 100-1500 psig, 90 psig min. deadband.
DA-21-153-13S	Pressure switch, 403SS Bourdon tube, range 300-2500 psig, 150 psig min. deadband.
DA-21-153-15S	Pressure switch, 403SS Bourdon tube, range 500-5000 psig, 450 psig min. deadband.
DA-21-153-16S	Pressure switch, 403SS Bourdon tube, range 800-8000 psig, 750 psig min. deadband.
DA-21-153-25S	Pressure switch, 403SS Bourdon tube, range 30" Hg Vac-60 psig, 6 psig min. deadband.
DA-21-153-26S	Pressure switch, 403SS Bourdon tube, range 30" Hg Vac-75 psig, 8 psig min. deadband.
DA-21-153-5S	Pressure switch, 403SS Bourdon tube, range 2-60 psig, 4 psig min. deadband.
DA-21-153-6S	Pressure switch, 403SS Bourdon tube, range 5-100 psig, 6 psig min. deadband.
DA-21-153-8S	Pressure switch, 403SS Bourdon tube, range 10-200 psig, 8 psig min. deadband.
DA-21-153-9AS	Pressure switch, 403SS Bourdon tube, range 40-350 psig, 14 psig min. deadband.
DA-21-153-9S	Pressure switch, 403SS Bourdon tube, range 10-300 psig, 14 psig min. deadband.
DA-31-153-1	Pressure switch, brass Bourdon tube, range 1/8-15 psig, 1 psig min. deadband.
DA-31-153-2	Pressure switch, brass Bourdon tube, range 30-0" Hg Vac, 2" Hg min. deadband.
DA-31-153-27	Pressure switch, brass Bourdon tube, range 25" Hg Vac-50 psig, 3.5 psig min. deadband.
DA-31-153-3	Pressure switch, brass Bourdon tube, range 10" Hg Vac-12 psig, 1 psig min. deadband.
DA-31-153-3A	Pressure switch, brass Bourdon tube, range 1/8-20 psig, 1 psig min. deadband.
DA-31-153-4	Pressure switch, brass Bourdon tube, range 1-35 psig, 1.75 psig min. deadband.
DA-31-153-5	Pressure switch, brass Bourdon tube, range 2-60 psig, 3 psig min. deadband.
DA-31-153-6	Pressure switch, brass Bourdon tube, range 5-100 psig, 3.75 psig min. deadband.
DA-31-153-7	Pressure switch, brass Bourdon tube, range 5-150 psig, 6 psig min. deadband.
DA-31-153-8	Pressure switch, brass Bourdon tube, range 10-200 psig, 8 psig min. deadband.
DA-31-153-9	Pressure switch, brass Bourdon tube, range 10-300 psig, 12 psig min. deadband.
DA-41-153-11E	Pressure switch, 316SS Bourdon tube, range 100-1000 psig, 100 psig min. deadband.
DA-41-153-13E	Pressure switch, 316SS Bourdon tube, range 200-2500 psig, 210 psig min. deadband.
DA-41-153-21E	Pressure switch, 316SS Bourdon tube, range 30-400 psig, 30 psig min. deadband.
DA-41-153-22E	Pressure switch, 316SS Bourdon tube, range 75-800 psig, 75 psig min. deadband.
DA-41-153-23E	Pressure switch, 316SS Bourdon tube, range 5-75 psig, 3 psig min. deadband.
DA-41-153-24E	Pressure switch, 316SS Bourdon tube, range 10-150 psig, 6 psig min. deadband.
DA-41-153-26E	Pressure switch, 316SS Bourdon tube, range 30" Hg Vac-75 psig, 7 psig min. deadband.
DA-41-153-6E	Pressure switch, 316SS Bourdon tube, range 10-100 psig, 7 psig min. deadband.
DA-41-153-9E	Pressure switch, 316SS Bourdon tube, range 10-300 psig, 18 psig min. deadband.

Series A7 Mini Pressure Switch

Designed for OEM’s, High Current Capacity

Series A7 Mini Pressure Switches have been designed for high current applications. These switches are small and inexpensive, making them ideal for OEM use. The Series A7 switches utilize a high-quality snap-action switch, which is diaphragm actuated. They have a silicone diaphragm and nylon housing. The A7 switches are compact and lightweight which adds to the ease of installation. The set point must be factory set, but a broad operating range makes them great for a variety of applications.

Models are built to your specification.
Set point is factory preset and is not field adjustable.
Minimum quantity order is 100.

Series A9 Snap-Action Pressure Switch

High Current Capacity, High Temperature Rating

Series A9 Pressure Switches are designed for controlling pressure with higher current capacity. These switches are used widely in steam cleaners, steam irons, and other pressure control systems. It provides SPDT contact and Series A9 Pressure Switches utilize high-quality miniature snap-action switches. The switch is diaphragm operated, boasting a high temperature rating and compact size.

Models & Ordering

Model	Description
A9-1	Pressure switch, range 2.9-8.7 psig (0.2-0.6 bar), deadband 2.9 ±1.5 psig (0.2 ±0.1 bar), max. pressure 43.5 psig (3.0 bar), temperature limit 185°F (85°C), silicone diaphragm.
A9-2	Pressure switch, range 7.3-17.4 psig (0.5-1.5 bar), deadband 2.9 ±1.5 psig (0.2 ±0.1 bar), max. pressure 58.0 psig (4.0 bar), temperature limit 257°F (125°C), stainless steel diaphragm.
A9-3	Pressure switch, range 14.5-36.3 psig (1.2-2.5 bar), deadband 2.9 ±1.5 psig (0.2 ±0.1 bar), max. pressure 72.5 psig (5.0 bar), temperature limit 257°F (125°C), stainless steel diaphragm.
A9-4	Pressure switch, range 21.8-58 psig (1.5-4.0 bar), deadband 3.6 ±2.2 psig (0.25 ±0.1 bar), max. pressure 87.0 psig (6.0 bar), temperature limit 257°F (125°C), stainless steel diaphragm.
A9-5	Pressure switch, range 29-87 psig (3.0-7.0 bar), deadband 5.1 ±2.9 psig (0.35 ±0.2 bar), max. pressure 116.0 psig (8.0 bar), temperature limit 257°F (125°C), stainless steel diaphragm.
A9-6	Pressure switch, range 58-130.5 psig (5.0-9.0 bar), deadband 8.7 ±2.9 psig (0.6 ±0.2 bar), max. pressure 145.0 psig (10.0 bar), temperature limit 257°F (125°C), stainless steel diaphragm.

Series SA1100 Diaphragm Operated Pressure Switches

Visible Setpoint, Adjustable Deadband, Hermetically Sealed Snap Switch, Weatherproof and Explosion-proof

The Series SA1100 Diaphragm Operated Pressure Switches are weatherproof and explosion-proof in one economical enclosure. Extremely rugged construction assures excellent reliability in chemical, petroleum and industrial plants. New design also provides burst pressure protection to 3000 psi (206 bar). The rolling diaphragm design maintains a constant effective area to minimize friction. This results in a minimum deadband as low as 5% of full-scale. Since many applications require higher deadbands, the SA1100 includes a separate adjustment of this when necessary. A pump being used to control liquid level in a tank would be a typical situation where this feature would be important. Both setpoint and deadband adjustments are protected, yet clearly visible behind a clear polycarbonate window and are fully isolated from the electrical components for additional safety. A 7/16" open-end wrench is the only tool required to change settings. Terminal blocks are provided for switch wiring connections and both internal and external ground screws are included. Standard housing is weatherproof to NEMA standards 1 through 4X and 13; explosion-proof to NEMA 7, Class I, Groups B, C & D; NEMA 9, Class II, Groups E, F & G. Optional construction adds drain to meet NEMA 3R IP54.

Product Applications

Chemical, petroleum, food and drug processing industries
Used indoor, outdoor or in explosion-proof area
Pump control

Models & Ordering

Model	Description
SA1111E-A4-K1	Diaphragm operated pressure switch, 1/4" NPT(F) Process Connection, Buna-N Diaphragm and O-ring.

Series 1000W Weatherproof Diaphragm Operated Pressure Switches

Visible Setpoint, Fixed Deadband, Pressure Ranges to 1400 psi

With extremely rugged construction the Series 1000W Weatherproof Diaphragm Operated Pressure Switch provides excellent reliability in chemical, petroleum and industrial plants. Bellville spring movement permits mounting of control in any position and helps prevent contact chatter. New design also provides high over-pressure protection. Weatherproof housing is standard.

Product Applications

Chemical, petroleum, food and drug processing industries
Process and Industrial applications

Models & Ordering

Model	Description
1003W-A1-D	Weatherproof pressure switch, adj. range 5-40 psig (.48-2.8 bar), approx. deadband (fixed) 2 psig (.14 bar).
1004W-A1-D	Weatherproof pressure switch, adj. range 10-70 psig (.69-4.8 bar), approx. deadband (fixed) 4 psig (.25 bar).
1005W-A1-D	Weatherproof pressure switch, adj. range 25-200 psig (1.7-13.8 bar), approx. deadband (fixed) 8 psig (.55 bar).
1006W-A1-D	Weatherproof pressure switch, adj. range 50-350 psig (3.5-24.1 bar), approx. deadband (fixed) 15 psig (1.0 bar).
1007W-A1-D	Weatherproof pressure switch, adj. range 75-550 psig (5.2-37.9 bar), approx. deadband (fixed) 30 psig (2.1 bar).
1008W-A1-D	Weatherproof pressure switch, adj. range 100-900 psig (6.9-62.1 bar), approx. deadband (fixed) 50 psig (3.5 bar).
1009W-A1-D	Weatherproof pressure switch, adj. range 200-1400 psig (13.8-96.5 bar), approx. deadband (fixed) 75 psig (5.2 bar).

Series H2 Dual-Action Explosion-proof Pressure Switches

Explosion-proof and Weatherproof Enclosure

Explosion-Proof, UL & CSA Listed for Class I, Groups B, C & D and Class II, Groups E, F & G. The Series H2 Dual-Action Explosion-Proof Pressure Switch is designed for sequencing two different actions as pressure of a liquid or gas increases or decreases. The design consists of two concentric pistons operated by a single diaphragm with one pressure chamber. Each piston actuates a separate switch independent of the other. The switches may be adjusted to operate together, at opposite ends of the range or at two intermediate set points. The threaded top is removed to field adjust or service switches without disturbing electrical or pressure connections. The Duotect® switch is explosion-proof and weatherproof. It can be mounted in any position and is not affected by vibration.

Product Applications

Mechanical HVAC or process equipment
Chemical, petroleum, food and drug processing industries
Process and Industrial applications

Models & Ordering

Model	Description
H2S-1	Duotect® dual-action explosion-proof pressure switch, 3-40 psig (0.21-2.76 bar) low range, 5-75 psig (0.35-5.17 bar) high range
H2S-2	Duotect® dual-action explosion-proof pressure switch, 25-250 psig (1.72-17.2 bar) low range, 30-400 psig (2.07-27.6 bar) high range
H2S-3	Duotect® dual-action explosion-proof pressure switch, 100-1000 psig (6.89-68.9 bar) low range, 150-1500 psig (10.3-103 bar) high range

Series AP Diaphragm Operated Pressure Switch

Visible Setpoint Adjustment, Compact

Reliable and convenient, the Series AP Diaphragm Operated Pressure Switch is a compact switch for instrument air or other low pressure applications. Visible set point and external adjustment add convenience. Used on air, non-corrosive gas or liquid service compatible with wetted parts. Units are available in weather-proof and explosion-proof housing.

Product Applications

Low pressure applications
Instrument air

Models & Ordering

Model	Description
AP-153-33	Diaphragm operated pressure switch, range 10" vac-50" w.c. (2.5-12.4 kPa), SPDT mercury switch, low deadband 5" w.c. (1.2 kPa), high deadband 6" w.c. (1.49 kPa), max. pressure 15 psig (1.03 bar).
AP-153-37	Diaphragm operated pressure switch, range 1-30 psig (.07-2.1 bar), SPDT mercury switch, low deadband 0.4 psig (0.03 bar), high deadband 0.75 psig (0.05 bar), max. pressure 60 psig (4.14 bar).
AP-153-39	Diaphragm operated pressure switch, range 10-125 psig (.69-8.6 bar), SPDT mercury switch, low deadband 2 psig (0.14 bar), high deadband 6 psig (0.41 bar), max. pressure 160 psig (11.0 bar).
AP-7021-153-33	Diaphragm operated pressure switch, range 10" vac-50" w.c. (2.5-12.4 kPa), SPDT snap switch, low deadband 8" w.c. (2.0 kPa), high deadband 10" w.c. (2.49 kPa), max. pressure 15 psig (1.03 bar).
AP-7021-153-37	Diaphragm operated pressure switch, range 1-30 psig (.07-2.1 bar), SPDT snap switch, low deadband 0.75 psig (0.05 bar), high deadband 1.5 psig (0.10 bar), max. pressure 60 psig (4.14 bar).
AP-7021-153-39	Diaphragm operated pressure switch, range 10-125 psig (.69-8.6 bar), SPDT snap switch, low deadband 3 psig (0.21 bar), high deadband 7 psig (0.48 bar), max. pressure 160 psig (11.0 bar).

Series CS & CD Diaphragm Pressure Switch

Visible Set Points, Fixed or Adjustable Deadband

Series CS & CD Diaphragm Pressure Switches combine advanced design and precision construction in a small size. Unit is ideal for instrument panels, small compressors and general industrial applications. Visible set point and easy to wire SPDT snap switch reduce installation time. Operates in any position and is vibration resistant.

Models & Ordering

Model	Description
CS-1	Low cost diaphragm pressure switch, adj. range 1-30" Hg Vac (25.4-762 mm Hg), deadband 1.5" Hg (38 mm Hg).
CS-10	Low cost diaphragm pressure switch, adj. range 1-10 psig (.07-.69 bar), deadband 0.4 psig (0.03 bar).
CS-150	Low cost diaphragm pressure switch, adj. range 10-150 psig (.69-10.3 bar), deadband 5 psig (0.35 bar).
CS-3	Low cost diaphragm pressure switch, adj. range 1-100" w.c. (.25-24.9 kPa), deadband 7" w.c. (1.74 kPa).
CS-30	Low cost diaphragm pressure switch, adj. range 1-30 psig (.07-2.1 bar), deadband 1.0 psig (0.07 bar).

Series APS/AVS Adjustable Pressure Switch

Vacuum and Pressure Ranges, 5 A Switch, Compact Size

Miniature Series APS/AVS Adjustable Switches offer reliable switching for pressure/vacuum alarm, shutdown or control. The units are readily adjustable throughout their range using the locking adjusting ring and indicating pointer. The body is constructed of stainless steel for durability in harsh environments. Switches include 12" (30 cm) wire leads sealed with epoxy for additional protection.

Product Applications

OEM
Compressors
Motor control
Process equipment
Pump control

Models & Ordering

Model	Description
APS-150	Adjustable pressure switch, set point range 0.8-28.5 psi (.06-2.0 bar) increasing, 1.6-30.0 psi (.11-2.1 bar) decreasing, ±0.6 psi (.04 bar) repeatability, 0.8-1.3 psi (.06-.09 bar) deadband.
APS-250	Adjustable pressure switch, set point range 2.0-48.0 psi (.14-3.3 bar) increasing, 3.0-50.0 psi (.21-3.5 bar) decreasing, ±1.0 psi (0.7 bar) repeatability, 1-1.7 psi (.07-.12 bar) deadband.
APS-350	Adjustable pressure switch, set point range 3.0-96.5 psi (.21-6.7 bar) increasing, 4.5-100 psi (.31-6.9 bar) decreasing, ±2.0 psi (.14 bar) repeatability, 1.6-4 psi (.11-.28 bar) deadband.
APS-450	Adjustable pressure switch, set point range 7.5-242 psi (.52-16.7 bar) increasing, 9.7-250 psi (.67-17.2 bar) decreasing, ±5.0 psi (.35 bar) repeatability, 2.5-9 psi (.17-.62 bar) deadband.
APS-550	Adjustable pressure switch, set point range 15.0-485 psi (1.0-33.4 bar) increasing, 20.0-500 psi (1.4-34.5 bar) decreasing, ±10.0 psi (.69 bar) repeatability, 5-22 psi (.35-1.5 bar) deadband.

Series A1PS/A1VS Economical Pressure Switch

Vacuum and Compound Ranges Available, Adjustable Set Point

Series A1PS/A1VS Economical Pressure Switches are designed with a 15 Amp SPDT switch for direct control of pumps and motors. Available in pressure, vacuum, or compound ranges, the switches offer a field adjustable set point. Easily adjust the switch by aligning the top of the self locking adjusting nut with the desired setting indicated on the adjacent range scale. Connection is 1/4" male NPT for quick installation and can be mounted in any position.

Product Applications

OEM
Compressors
Motor control
Process equipment
Pump control

Models & Ordering

Model	Description
A1PS-14	Economical pressure switch, set point range 1.5-3.5 psi (10-24 kPa), ±0.15 psi (1 kPa) repeatability, 0.5-1.7 psi (3-11 kPa) deadband.
A1PS-24	Economical pressure switch, set point range 3-40 psi (21-276 kPa), ±1.0 psi (7 kPa) repeatability, 2-5 psi (14-34 kPa) deadband.
A1PS-34	Economical pressure switch, set point range 30-150 psi (207-1034 kPa), ±5.0 psi (34 kPa) repeatability, 5-30 psi (34-207 kPa) deadband.
A1PS-44	Economical pressure switch, set point range 100-500 psi (689-3445 kPa), ±20.0 psi (138 kPa) repeatability, 30-120 psi (207-827 kPa) deadband.

Series MSAG/MSAH/XTBX Diaphragm Seal

For Use with DA Series Pressure Switches

Mercoid® diaphragm seals prevent corrosive, viscous or other damaging pressure media (gas, liquid, etc.) from entering the pressure power element in pressure or differential pressure controls.

Series MVS Miniature Vacuum Switch

SPDT N/O or N/C Switch, Adjustable Set Point, Ideal for OEM's

Compact, lightweight, and adjustable, the Series MVS Miniature Vacuum Switch is specially designed for OEM applications. This low cost switch has a minimum life expectancy of 10 million cycles and has an extremely fast response time. Typical applications for the MVS are HVAC, home appliance, dairy systems, medical, office equipment, and pump control.

Product Applications

OEM
HVAC applications
Medical equipment
Dairy equipment
Pump control

Models & Ordering

Model	Description
MVS-1	Miniature vacuum switch, min. set point 3" w.c. (8 mbar), max. set point 8" w.c. (20 mbar), 1/4" smooth port process connection.
MVS-2	Miniature vacuum switch, min. set point 9" w.c. (21 mbar), max. set point 80" w.c. (199 mbar), 1/4" smooth port process connection.
MVS-3	Miniature vacuum switch, min. set point 81" w.c. (200 mbar), max. set point 330" w.c. (822 mbar), 1/4" smooth port process connection.
MVS-4	Miniature vacuum switch, min. set point 3" w.c. (8 mbar), max. set point 8" w.c. (20 mbar), 1/8" male NPT process connection.
MVS-5	Miniature vacuum switch, min. set point 9" w.c. (21 mbar), max. set point 80" w.c. (199 mbar), 1/8" male NPT process connection.
MVS-6	Miniature vacuum switch, min. set point 81" w.c. (200 mbar), max. set point 330" w.c. (822 mbar), 1/8" male NPT process connection.

Series MHS Miniature High Sensitivity Pressure Switch

SPDT N/O or N/C Switch, Adjustable Set Points from 3 in. H20 to 60 PSI

The Series MHS Miniature High Sensitivity Pressure Switch offers a wide range of field adjustable pressure set point options. The compact switch can be used with air or other compatible fluids. Ideal application is for turning pumps and compressors on and off when levels change. The Series MHS models offer a variety of electrical ratings to suit application needs. The switch is easy to install and easy to adjust, with a long mechanical life of over 10 million cycles.

Models & Ordering

Model	Description
MHS-1	Miniature high sensitivity pressure switch, min. set point 3" w.c. (7.5 mbar), max. set point 10" w.c. (25 mbar).
MHS-2	Miniature high sensitivity pressure switch, min. set point 10" w.c. (25 mbar), max. set point 28" w.c. (69 mbar).
MHS-3	Miniature high sensitivity pressure switch, min. set point 28" w.c. (69 mbar), max. set point 111" w.c. (276 mbar).
MHS-4	Miniature high sensitivity pressure switch, min. set point 111" w.c. (276 mbar), max. set point 416" w.c. (1034 mbar).
MHS-5	Miniature high sensitivity pressure switch, min. set point 416" w.c. (1034 mbar), max. set point 1664" w.c. (4137 mbar).

Series A2 Subminiature Pressure Switch

Field Adjustable

Designed for OEM applications, the Series A2 Subminiature Pressure Switch is economical and is equipped with high proof pressure capabilities for demanding applications. The A2 is available with either spade terminals or flying leads (submersible). Switches with spade terminals can be easily adjusted in the field.

Product Applications

Models & Ordering

Model	Description
A2-5801	Subminiature pressure switch, brass, 2-20 psi (.14-1.4 bar), spade terminals, NO
A2-5811	Subminiature pressure switch, brass, 2-20 psi (.14-1.4 bar), spade terminals, NC
A2-6801	Subminiature pressure switch, brass, 15-100 psi (1.03-6.9 bar), spade terminals, NO
A2-6811	Subminiature pressure switch, brass, 15-100 psi (1.03-6.9 bar), spade terminals, NC
A2-7801	Subminiature pressure switch, brass, 50-150 psi (3.5-10.3 bar), spade terminals, NO
A2-7811	Subminiature pressure switch, brass, 50-150 psi (3.5-10.3 bar), spade terminals, NC

Series CX Compressor Pressure Switch

Adjustable Set Point and Deadband, 20 Amp Rating

The Series CX Compressor Pressure Switches are designed with a 20 amp normally closed SPST switch for direct control of pumps and motors. The set point and deadband are both easily adjustable via screw terminals inside the cover. For ease of installation, the switches come with a 1/4" female NPT process connection or the optional 4-port connection block on the CX-4 models. Besides making installation easier, one of the other ports can be used to install a pressure gage. Plus, these switches can be mounted in any orientation.

These units are perfect for regulating tank pressure on small air compressors. The CX series switches come with an unloader valve, which prevents compressors from starting under load. They also come with an auto/off disconnect lever for manually cutting off the load. When the lever is in the off position, there is a test button inside the housing that can be pushed to turn on the load.

Models & Ordering

Model	Description
CX-11	Compressor pressure switch, 1 port, range 25-100 psig (1.7-6.9 bar), approx. adj. deadband 20-30 psig (1.4-2.1 bar), max. pressure 129 psig (8.9 bar).
CX-12	Compressor pressure switch, 1 port, range 35-150 psig (2.4-10.3 bar), approx. adj. deadband 30-40 psig (2.1-2.8 bar), max. pressure 179 psig (12.3 bar).
CX-13	Compressor pressure switch, 1 port, range 50-175 psig (3.4-12.1 bar), approx. adj. deadband 35-55 psig (2.4-3.8 bar), max. pressure 204 psig (14.1 bar).
CX-41	Compressor pressure switch, 4 ports, range 25-100 psig (1.7-6.9 bar), approx. adj. deadband 20-30 psig (1.4-2.1 bar), max. pressure 129 psig (8.9 bar).
CX-42	Compressor pressure switch, 4 ports, range 35-150 psig (2.4-10.3 bar), approx. adj. deadband 30-40 psig (2.1-2.8 bar), max. pressure 179 psig (12.3 bar).
CX-43	Compressor pressure switch, 4 ports, range 50-175 psig (3.4-12.1 bar), approx. adj. deadband 35-55 psig (2.4-3.8 bar), max. pressure 204 psig (14.1 bar).

Series CXA Water Pump Pressure Switch

Simple, Reliable, Adjustable Set Point and Deadband

The Series CXA Water Pump Pressure Switches have been proven reliable for controlling automatic water systems. These switches are very popular for use on water well pumps and pumping systems. The set point and deadband are both easily adjustable via screws inside the cover. For ease of installation, the switches come with a 1/4" female NPT process connection and can be mounted in any orientation. The series CXA's simple design makes it a great switch for an installer at any skill level.

Product Applications

Water system applications
Electric water pumps
Well pumps
Pumping systems

Models & Ordering

Model	Description
CXA-R1	Water pump pressure switch, NO, range 15-80 psig (1.0-5.5 bar), approx. adj. deadband 15-30 psig (1.0-2.1 bar), max. pressure 129 psig (8.9 bar).
CXA-R2	Water pump pressure switch, NO, range 30-100 psig (2.1-6.9 bar), approx. adj. deadband 20-35 psig (1.4-2.4 bar), max. pressure 179 psig (12.3 bar).
CXA-R3	Water pump pressure switch, NO, range 35-150 psig (2.4-10.3 bar), approx. adj. deadband 30-40 psig (2.1-2.8 bar), max. pressure 204 psig (14.1 bar).
CXA-S1	Water pump pressure switch, NC, range 15-80 psig (1.0-5.5 bar), approx. adj. deadband 15-30 psig (1.0-2.1 bar), max. pressure 129 psig (8.9 bar).
CXA-S2	Water pump pressure switch, NC, range 30-100 psig (2.1-6.9 bar), approx. adj. deadband 20-35 psig (1.4-2.4 bar), max. pressure 179 psig (12.3 bar).
CXA-S3	Water pump pressure switch, NC, range 35-150 psig (2.4-10.3 bar), approx. adj. deadband 30-40 psig (2.1-2.8 bar), max. pressure 204 psig (14.1 bar).

Series A6 Durable Pressure Switch

Designed for Extended Duty, Simple and Reliable

Series A6 Durable Pressure Switches have been specifically designed to stand up to extended duty applications. These switches are constructed with a polyimide film diaphragm and are compatible with a variety of fluids. For ease of installation, the switches come with a 1/4" male NPT process connection and can be mounted in any orientation. The Series A6 pressure switches are compact and have great set-point integrity, and feature simple, easy set-point field adjustment.

Product Applications

OEM
Process equipment
Process applications

Models & Ordering

Model	Description
A6-153221	Pressure switch, set point range 0.5-1 ±0.3 psi (0.03-0.07 ±0.02 bar).
A6-253221	Pressure switch, set point range 1.1-3 ±0.5 psi (0.08-0.21 ±0.03 bar).
A6-353221	Pressure switch, set point range 3.1-7 ±1 psi (0.21-0.48 ±0.07 bar).
A6-453221	Pressure switch, set point range 8-13 ±2 psi (0.55-0.90 ±0.18 bar).
A6-553221	Pressure switch, set point range 14-24 ±3 psi (0.97-1.65 ±0.21 bar).
A6-653221	Pressure switch, set point range 25-50 ±5 psi (1.72-3.45 ±0.34 bar).
A6-753221	Pressure switch, set point range 51-90 ±7 psi (3.52-6.21 ±0.48 bar).
A6-853221	Pressure switch, set point range 91-150 ±10 psi (6.27-10.34 ±0.69 bar).

Series 1000E Explosion-Proof Diaphragm Operated Pressure Switches

Visible Setpoint, Fixed Deadband, Pressure Ranges to 1400 psi

The Series 1000E Explosion-Proof Diaphragm Operated Pressure Switch has the same rugged construction as used in Series 1000W plus explosion-proof design are combined in this new unit. UL listed for Class I, Groups A, B, C & D; Class II, Groups E, F & G. Bellville spring movement permits mounting of control in any position and helps prevent contact chatter. High over-pressure protection and vibration resistance are also featured.

Product Applications

Chemical, petroleum, food and drug processing industries
Process and industrial applications

Models & Ordering

Model	Description
1003E-A1-J	Explosion-proof pressure switch, adj. range 5-40 psig (.48-2.8 bar), approx. deadband (fixed) 2.5 psig (.17 bar).
1004E-A1-J	Explosion-proof pressure switch, adj. range 10-70 psig (.69-4.8 bar), approx. deadband (fixed) 5 psig (.34 bar).
1005E-A1-J	Explosion-proof pressure switch, adj. range 25-200 psig (1.7-13.8 bar), approx. deadband (fixed) 10 psig (.69 bar).
1006E-A1-J	Explosion-proof pressure switch, adj. range 50-350 psig (3.5-24.1 bar), approx. deadband (fixed) 18 psig (1.2 bar).
1007E-A1-J	Explosion-proof pressure switch, adj. range 75-550 psig (5.2-37.9 bar), approx. deadband (fixed) 36 psig (2.5 bar).
1008E-A1-J	Explosion-proof pressure switch, adj. range 100-900 psig (6.9-62.1 bar), approx. deadband (fixed) 60 psig (4.1 bar).
1009E-A1-J	Explosion-proof pressure switch, adj. range 200-1400 psig (13.8-96.5 bar), approx. deadband (fixed) 90 psig (6.2 bar).

Series A1F OEM Pressure Switch

Field Adjustable with Weather-Proof Enclosure

Low cost and precision made, the Series A1F Low Cost OEM Pressure Switch is ideal for OEM industrial applications. Wetted materials of 316 SS and fluorocarbon ensure great chemical compatibility with a wide range of process media. The open case style is perfect for panel mounting applications like pump skids. Weatherproof enclosure is available in polycarbonate offering a low cost weatherproof switch. Superior 15 A contact allows direct control of motors or pumps without the use of external relays, a true cost savings. Features include a convenient indicating scale for quick and easy field adjustment.

Product Applications

OEM
Compressors
Motor control
Process equipment
Pump control

Models & Ordering

Model	Description
A1F-O-SS-1-1	Pressure switch, range 2-15 psig (0.14-1.03 bar), min. deadband 2 psig (0.14 bar), max. deadband 3 psig (0.21 bar).
A1F-O-SS-1-2	Pressure switch, range 4-75 psig (0.28-5.17 bar), min. deadband 4 psig (0.27 bar), max. deadband 15 psig (1.0 bar).
A1F-O-SS-1-3	Pressure switch, range 8-225 psig (0.55-15.5 bar), min. deadband 8 psig (0.55 bar), max. deadband 25 psig (1.7 bar).
A1F-O-SS-1-4	Pressure switch, range 16-450 psig (1.1-31.0 bar), min. deadband 15 psig (1.0 bar), max. deadband 50 psig (3.5 bar).

Series EDA Electronic Pressure Controller

2 Switches, Indicating Gage, and Transmitter in One Package

Series EDA Electronic Pressure Control is an extremely versatile compact package that can replace a separate gage, two switches, and a transmitter in a system saving money, installation time, and panel space. The EDA incorporates two SPDT relays that have the on and off points fully adjustable over the range for control or alarm use. Front face has LED indicators for switch status and a large backlight two-line display showing process value and indication units. Programming is easy with simple menu structure, two-line display, and external programming buttons. Weatherproof housing is ideal for a wide variety of applications with panel mount, flush mount, or pipe mount ability. Features include zero set, adjustable dampening, menu lock out, peak and valley indication, removable terminal blocks, adjustable time delay, and scalable transmitter output.

Product Applications

Process control
Compressor control
Filter status
Duct or building static pressure
Damper and fan control

Models & Ordering

Model	Description
EDAW-N1E1-02T0	Electronic pressure switch, range 0-20 psi, 1/4" male NPT bottom connection, 316L SS, 2 SPDT relays.
EDAW-N1E1-02T1	Electronic pressure switch, range 0-20 psi, 1/4" male NPT bottom connection, 316L SS, 2 SPDT relays, 4-20 mA output.
EDAW-N1E1-03T0	Electronic pressure switch, range 0-60 psi, 1/4" male NPT bottom connection, 316L SS, 2 SPDT relays.
EDAW-N1E1-03T1	Electronic pressure switch, range 0-60 psi, 1/4" male NPT bottom connection, 316L SS, 2 SPDT relays, 4-20 mA output.
EDAW-N1E1-04T0	Electronic pressure switch, range 0-100 psi, 1/4" male NPT bottom connection, 316L SS, 2 SPDT relays.
EDAW-N1E1-04T1	Electronic pressure switch, range 0-100 psi, 1/4" male NPT bottom connection, 316L SS, 2 SPDT relays, 4-20 mA output.
EDAW-N1E1-05T0	Electronic pressure switch, range 0-150 psi, 1/4" male NPT bottom connection, 316L SS, 2 SPDT relays.
EDAW-N1E1-05T1	Electronic pressure switch, range 0-150 psi, 1/4" male NPT bottom connection, 316L SS, 2 SPDT relays, 4-20 mA output.
EDAW-N1E1-06T0	Electronic pressure switch, range 0-300 psi, 1/4" male NPT bottom connection, 316L SS, 2 SPDT relays.
EDAW-N1E1-06T1	Electronic pressure switch, range 0-300 psi, 1/4" male NPT bottom connection, 316L SS, 2 SPDT relays, 4-20 mA output.
EDAW-N1E1-07T0	Electronic pressure switch, range 0-600 psi, 1/4" male NPT bottom connection, 316L SS, 2 SPDT relays.
EDAW-N1E1-07T1	Electronic pressure switch, range 0-600 psi, 1/4" male NPT bottom connection, 316L SS, 2 SPDT relays, 4-20 mA output.
EDAW-N1E1-08T0	Electronic pressure switch, range 0-1000 psi, 1/4" male NPT bottom connection, 316L SS, 2 SPDT relays.
EDAW-N1E1-08T1	Electronic pressure switch, range 0-1000 psi, 1/4" male NPT bottom connection, 316L SS, 2 SPDT relays, 4-20 mA output.
EDAW-N1E1-09T0	Electronic pressure switch, range 0-1500 psi, 1/4" male NPT bottom connection, 316L SS, 2 SPDT relays.
EDAW-N1E1-09T1	Electronic pressure switch, range 0-1500 psi, 1/4" male NPT bottom connection, 316L SS, 2 SPDT relays, 4-20 mA output.
EDAW-N1E1-10T0	Electronic pressure switch, range 0-3000 psi, 1/4" male NPT bottom connection, 316L SS, 2 SPDT relays.
EDAW-N1E1-10T1	Electronic pressure switch, range 0-3000 psi, 1/4" male NPT bottom connection, 316L SS, 2 SPDT relays, 4-20 mA output.

Series MDPC Mini Digital Pressure Controller

Small, Lightweight, 6 Selectable Pressure Units

The Series MDPC Mini Digital Pressure Controller is a slim, gas pressure sensor that is small in size and light in weight. This pressure controller supports many installation methods and features high measurement accuracy. This small controller yields excellent stability, high shock and vibration resistance. The MDPC also provides good over-load capacity and heat resistance. It can be utilized in many industries such as: high-tech electronics, general processing, food packaging and automatic assembly. The MDPC features 6 user selectable pressure units and a large, LED 3-color display with selectable color options that allow for easy reading. Changing units is simple, and by using the included unit stickers, the pressure unit displayed becomes very clear. The fast parameter copy function makes copying parameters to other MDPC pressure controllers effortless. The key lock mode also prevents any unnecessary changes to the parameters, which can have an effect on the operation. Another characteristic of this multi-talented pressure controller is its ability to detect both positive and negative pressure. The MDPC is available in NPN, PNP, analog voltage or current output control modes.

Models & Ordering

Model	Description
MDPC-111	Pressure controller, range -14.5 psi to 14.5 psi, NPN output, 4 to 20 mA, outer connection 1/8" PT, inner connection M5.
MDPC-112	Pressure controller, range -14.5 psi to 14.5 psi, NPN output, 4 to 20 mA, outer connection 1/8" NPT, inner connection M5.
MDPC-121	Pressure controller, range -14.5 psi to 14.5 psi, NPN output, 1 to 5 V, outer connection 1/8" PT, inner connection M5.
MDPC-122	Pressure controller, range -14.5 psi to 14.5 psi, NPN output, 1 to 5 V, outer connection 1/8" NPT, inner connection M5.
MDPC-131	Pressure controller, range -14.5 psi to 14.5 psi, PNP output, 4 to 20 mA, outer connection 1/8" PT, inner connection M5.
MDPC-132	Pressure controller, range -14.5 psi to 14.5 psi, PNP output, 4 to 20 mA, outer connection 1/8" NPT, inner connection M5.
MDPC-141	Pressure controller, range -14.5 psi to 14.5 psi, PNP output, 1 to 5 V, outer connection 1/8" PT, inner connection M5.
MDPC-211	Pressure controller, range -14.5 psi to 145 psi, NPN output, 4 to 20 mA, outer connection 1/8" PT, inner connection M5.
MDPC-212	Pressure controller, range -14.5 psi to 145 psi, NPN output, 4 to 20 mA, outer connection 1/8" NPT, inner connection M5.
MDPC-221	Pressure controller, range -14.5 psi to 145 psi, NPN output, 1 to 5 V, outer connection 1/8" PT, inner connection M5.
MDPC-222	Pressure controller, range -14.5 psi to 145 psi, NPN output, 1 to 5 V, outer connection 1/8" NPT, inner connection M5.
MDPC-231	Pressure controller, range -14.5 psi to 145 psi, PNP output, 4 to 20 mA, outer connection 1/8" PT, inner connection M5.
MDPC-232	Pressure controller, range -14.5 psi to 145 psi, PNP output, 4 to 20 mA, outer connection 1/8" NPT, inner connection M5.
MDPC-241	Pressure controller, range -14.5 psi to 145 psi, PNP output, 1 to 5 V, outer connection 1/8" PT, inner connection M5.
MDPC-242	Pressure controller, range -14.5 psi to 145 psi, PNP output, 1 to 5 V, outer connection 1/8" NPT, inner connection M5.