9WPS EXPLOSION PROOF COMPACT PRESSURE SWITCH

Wide pressure range: Vacuum to 10,000 psi
Explosion-proof SPDT or DPDT switch for reliable operation
Durable stainless steel construction with FKM and PTFE wetted parts
ANSI dual seal design for safety compliance
Diaphragm seal/piston sensor for accurate pressure monitoring
Safe to adjust during operation without risk
Lockable setpoint wheel to prevent unintended shifts
±2% full-scale accuracy for precise measurement
NEMA 4X, 7 & 9 enclosure rating for protection in harsh environments
CSA approved for hazardous locations
Designed for sour gas applications requiring NACE MR0175-2009 compliance
CRN registered (up to 3,000 psi models)
5-year warranty for long-term reliability

Ideal for hazardous locations, including:
- Safety panels
- Pumps and gas compressors
- Turbines
- Oil & Gas applications

SPECIFICATIONS

Housing Material	316 SS
Port Material	316 SS
Accuracy	±2% of full scale
Pressure Connection	1/4” NPTF (1/2″ NPTF optional)
Electrical Connection	1/2″ NPTM, 18 AWG, 18″ (457 mm) free leads
Wetted Parts	Vacuum and low pressure – seals: FKM diaphragm High pressure – piston: SS with PTFE backup ring and FKM o-ring
Set Point Adjustment	Internal adjustment wheel with built in locking set-screws (#6)¹
Deadband	Fixed
Contact Rating	11 amps @ 125/250 Vac 5 amps @ 30 Vdc
No. of Contacts	1 x SPDT, DPDT optional
Vibration	10 g 10-500 Hz, MIL-STD-202F
Shock	50 g, 11 ms, MIL-S-901C
EMI/RFI Protection	EN55011
Ambient Temperature	-40°F to 149°F (-40°C to 65°C)
Enclosure Rating	NEMA 4X, 7 & 9
Approvals	CSA (Canada and US) approved for use in hazardous locations Class I, Div. 1, Groups B, C & D; Class II, Div. 1, Groups E, F & G CRN registered (up to 3,000 psi model) ANSI dual seal compliant NACE MR0175-2009 compliant
Typical Life	2.5 million cycles
Weight	1.85 lbs (839 grams)