OPTIONS -- Consult Factory for Pricing

DAH Explosion-proof Enclosure, suitable for Class I, Groups C and D; NEMA 7; Class II, Groups E, F, G; Class III NEMA 9 and 9A, Division 1. Add "H" to model number after DA or DS. Example: DAH-31-153-7.
FM FM Approved, for general purpose and explosion-proof models listed above in agency approvals. Add "F" to model number after DA, DS, DAH or DSH. Examples: DAF-31-153-7 or DAHF-31-153-7.
Other Options: DPDT switches or other switch types, fixed deadband mercury switch units for low deadband applications, manual reset operation, two-stage operation, acetal bushed movement for applications with high amounts of vibration and/or pulsation, fungus proofing, siphon, diaphragm seals, mounting flange and remote connection.