Our Model 744-S, fixed-setting pressure switch is a miniature piston-operated factory set design ideal for applications with limited installation space. This piston-operated switch model thrives in tough environments containing oil, fuel, water, dust, vibration or shock.

« Pressure Switches / 744-S Series

Features

Fixed pressure
Piston
8-6000psig range

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Specifications

Temperature range from -40 to 250°F
Pressure connection: 1/4″-18 and 1/8″-27 NPT, 9/16″-18 UNJF-3A
At 28 VDC:
- 7 amps resistive
- 4 amps inductive
- 2 1/2 amps lamp load
303 stainless steel hydraulic module housing
Polyphenylene sulfide electric module housing
Lead wire connectors
Single pole single throw
Single pole double throw
Nitrile “o”-ring, fluorocarbon and ethylene propylene
UL Listed
NEMA Type 4 rating
Integral pressure port snubbing

Available Options

Snap-action electrical switch tested to 1 million cycles
Gold contact switches for dry circuit applications
High overpressure capability
Custom configuration
High shock and vibration survivability
Media compatibility

Applications

Off road equipment
Industrial OEM equipment
Train braking systems
Compactors
Compressors

Operating Pressure Data
Series	Range Indicator	Pressure Range	Tolerance on Set Pressure*	Dead Band*	Max System Pressure	Proof Pressure
744	1	8 – 125	±1 / ±5	4 / 14	1500	2250
	6	50 – 275	±5 / ±10	10 / 27	2400	3500
	2	75 – 500	±7 / ±15	15 / 45	3000	4500
	7	130 – 1000	±8 / ±20	20 / 95	3000	8000
	3	300 – 1500	±15 / ±40	45 / 130	4500	6800
	4	1250 – 3000	±40 / ±75	150 / 240	6500	10000
	5	2500 – 6000	±75 / ±125	250 / 425	6500	12000