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Features

  • Manual Reset
  • Snap-acting, trip free mechanism
  • Single-pole, single-throw switch, normally closed
  • Factory calibrated pressure setpoints from 200 to 750 psig (14 to 52 bar)
  • Tamper resistant

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Specifications

Design Specifications
Operating Pressure 200 to 750 psig (14 to 52 bar)
Proof Differential and Tolerance

For actuation pressures of 200-350 psig (14 - 24 bar), tolerance is ±10 psig (±0.7 bar),

60-70% is standard differential;

351-500 psig (24 - 34.5 bar), ±10 psig (±0.7 bar), 65-75% differential;

Differential = (release setpoint/actuation setpoint) X 100.

Release Tolerance setpoint on all devices (0.2 bar), ±30 psig.
Proof Pressure

600 psig (41 bar) for actuation pressure up to 400 psig (28 bar);

800 psig (55 bar) for higher actuation pressures
Burst Pressure 5000 psig (345 bar)
Standard Port Fittings

1/4” SAE female flare with deflator

1/4” male NPTF

1/8” male NPTF

1/4” SAE male flare

24” and 36” capillary tubes, straight or flared ends
Electrical Configuration Single-pole single-throw normally closed at atmospheric pressure with manual reset
Electrical Ratings

Pilot-duty, 375 VA at 120 VAC

2.9 FLA, 15.0 LRA at 240 VAC

5.8 FLA, 34.8 LRA at 120 VAC

240 VAC 6A IND
Dielectric Strength 750 Vrms across open contacts; 1554 Vrms to ground
Life at Rated Current 10,000 cycles
Leads

AWG stranded UL style 1056 with 1/2” strip standard

6” and 12” lengths standard, other lengths available and special terminals available upon request
Ambient Temperature -20ºF to 150ºF (-29ºC to 66ºC)
Fluid Temperature -65ºF to 275ºF (-54ºC to 135ºC)