BHR series:

• Class I, Divisions 1 & 2, Groups B, C, D
• Class II, Divisions 1 & 2, Groups F, G
• Class III
• NEMA 3, 4, 7BCD, 9FG, 12
• ANSI/UL standard: UL1010

SRD series:

• Class I, Divisions 1 & 2, Group D
• Class II, Divisions 1 & 2, Groups F, G
• Class III
• NEMA 3, 7D, 9FG, 12
• ANSI/UL standard: UL1010

• Feature a built-in rotary switch which is operated automatically when the plug is inserted and withdrawn; the switch, capable of making and breaking the circuit at full rated load, is operated by a helical blade in the center of the plug
• The plug and receptacle contacts cannot be made or broken under load; when the plug is inserted, the plug and receptacle contacts engage before the switch closes; when the plug is withdrawn, the switch opens before the plug and receptacle contacts disengage; this sequence of operation provides maximum safety in a dead front receptacle; arcing is isolated in a flametight and dusttight chamber
• Operation is simple, safe and positive; to disconnect the portable device, the plug fastening ring is unscrewed and the plug simply pulled straight out; no separate interlock device or operating handle need be actuated
• Positive engagement without mismatching is assured by a distinct physical polarization of the plug and receptacle in every rating
• Plugs are furnished with pressure terminations; receptacles are furnished with flexible leads for splicing to the supply conductors; a large threaded cover provides access to the wiring compartment
• BHR assemblies are available for top, bottom or through feed conduit arrangements in 3/4" to 2" sizes
• SRD back box is provided with 1-1/4" vertical through feed hubs

• Receptacle housings – copper-free aluminum
• Plug exteriors – copper-free aluminum
• Back box (SRD series) – Feraloy iron alloy
• Insulation – high impact glass filled phenolic
• Contacts – brass