R.B.Denison WE77 Ex-1 Explosion-Proof Switch Amplifier is a 120 VAC explosion-proof switch amplifier from R.B.Denison. The WE77 Ex-1 is the model designation for this unit in the R.B.Denison lineup. Built for applications where ignition protection is essential, this switch amplifier operates on 120 VAC and carries the Ex-1 designation for its protection class.
