The Ashcroft® B7 NEMA 7/9 pressure switch is designed for use in virtually all industrial and OEM applications. This model provides accuracy, reliability and long-cycle life, while the rugged, explosion-proof housing provides superior protection. Ideal for satisfying requirements for pressure control, safety shutdown or alarm operations in hazardous applications. 

Key Features:

Explosion-proof enclosure provides uncompromising protection
Adjustable from 15%-100% of range
Fixed or limited adjustable deadband
Wide selection of switch elements and wetted materials
External locking screw (ATEX / IECEx approval only)
Accuracy: ±1.00% full scale
NEMA 7/9 (IP66) enclosure
Epoxy-coated aluminum (standard)
316 Stainless steel (option XYW)
Single setpoint
SPDT or DPDT switching option
Pressure ranges: vacuum to 3,000 psi

Additional information

Process Connection Size


Operating ambient temperature

-28 to 65 Deg.C

Case Material

Accuracy Class


Adjustable Set point range

Pressure : Vac to 3000 Psi, Hydraulic : 1000 – 7500 Psi

Electrical Rating

15A, 125/250/480 VAC resistive

Wetted Material

Stainless Steel 316

Switch Contact Type

Micro Switch, Explosion Proof

Switching Functions

One(1) or two(2) SPDT

You may also like…