The SOR explosion proof B3 pressure/vacuum/compound switch is certified by ATEX, CSA and UL to withstand the rigors of hostile environments. These rugged, field-mounted units are made of cast iron or aluminum.

• Terminal block connections
• Ranges from 30 in Hg vacuum to 7000 psi
• Set point adjustment with calibrated scale
• Set points can be adjusted without declassification of hazardous area