Eaton Crouse-Hinds BHR and SRD Explosionproof Interlocked Receptacles

Certifications:
- BHR: Class I, Div. 1 & 2, Groups B, C, D; Class II, Div. 1 & 2, Groups F, G; Class III; NEMA 3R, 7BCD, 9FG.
- SRD: Class I, Div. 1 & 2, Groups C, D; Class II, Div. 1 & 2, Groups F, G; Class III; NEMA 3R, 7CD, 9FG (no Group B).
Ratings: 30A, 60A, 100A; 600 VAC max, 250 VDC max.
Interlock: Rotary switch operates automatically via plug insertion/removal; contacts engage before the switch closes and disengage after it opens, isolating arcing in a flame-tight chamber.
Operation: Plug fastening ring unscrews for straight-pull disconnection; no external handle required.
Materials: Copper-free aluminum housing, brass contacts.
Plugs: Compatible with Arktite BHP (BHR) and SP (SRD) plugs, featuring pressure terminations.
Wiring: Receptacles have flexible leads for splicing; large threaded cover provides access.

BHR: Refineries, chemical plants with hydrogen (Group B) or equivalent hazards.
SRD: Petroleum facilities, grain processing plants with flammable gases (Groups C, D) or dusts (Groups F, G).

Based on Eaton’s latest data (not from your EPC/EPCB document), here’s a table of common BHR and SRD configurations:

Cat. #	Series	Amperage	Poles/Wires	Hub Size	Conduit Arrangement	Plug Compatibility	Certifications
BHR3323	BHR	30A	2W, 3P	1″	Top feed	BHP3385	Class I, B, C, D
BHR3423	BHR	30A	3W, 4P	1″	Top feed	BHP3485	Class I, B, C, D
BHR6323	BHR	60A	2W, 3P	1-1/4″	Bottom feed	BHP6385	Class I, B, C, D
BHR6423	BHR	60A	3W, 4P	1-1/4″	Bottom feed	BHP6485	Class I, B, C, D
BHR10323	BHR	100A	3W, 4P	1-1/2″	Through feed	BHP10487	Class I, B, C, D
SRD633	SRD	60A	2W, 3P	1-1/4″	Vertical through feed	SP6385	Class I, C, D
SRD643	SRD	60A	3W, 4P	1-1/4″	Vertical through feed	SP6485	Class I, C, D
SRD1033	SRD	100A	2W, 3P	1-1/4″	Vertical through feed	SP10387	Class I, C, D

*Notes:

Cat. # Breakdown: E.g., BHR3323 = 30A, 2W3P, Style 2, 1″ hub. SRD643 = 60A, 3W4P, 1-1/4″ hub.
Hubs: BHR offers top, bottom, or through-feed (3/4″ to 2″); SRD uses fixed 1-1/4″ vertical through-feed back box.
Plugs: BHP (brass contacts) for BHR; SP (with cable grip, neoprene bushing) for SRD.*

BHR: Does not use separate back boxes; conduit hubs (3/4″ to 2″) are integral to the assembly for top, bottom, or through-feed setups.
SRD: Includes a factory-provided back box with 1-1/4″ vertical through-feed hubs. Optional separate back boxes (e.g., AJC108) can adapt to other conduit layouts.

Back Box Cat. #	Amperage	Hub Size	Type	Material	Compatible Series
Integral (BHR)	30A-100A	3/4″-2″	Top/Bottom/Through	Copper-free aluminum	BHR
SRD Back Box	30A-100A	1-1/4″	Through-feed	Copper-free aluminum	SRD
AJC108 (Optional)	60A-100A	1-1/2″	Through-feed	Cast aluminum	SRD (if modified)

Brand	Crouse-Hinds
Cat. Number	BHP10385N, BHP10485D, BHP10487D, BHP10585 NW, BHP3383N, BHP3483D, BHP3485D, BHP3583 BW, BHP3583 NW, BHP3585 NW, BHP6483D, BHP6485D, BHP6585 NW, SP3363N, SP3365N, SP3463D, SP3465D, SP3483D, SP3563 NW, SP3565 NW, SP3583 NW, SP3585 NW, SP6463D, SP6465D, SP6483D, SP6485D, SP6565 NW, SP6567 NW, SP6585 NW

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