NEMA 3R Service Distribution Enclosure



EPI NEMA 3R Service Distribution Enclosure is constructed of 14-Gauge Steel, primed with gray-oxide and enamel painted inside and out with Sherwin Williams ASA-70, Light-Dove Gray.

This enclosure is equipped with continuous stainless steel hinge-cover doors with a stainless steel hinge. The doors are secured by a 3-point locking mechanism with a T-handle with provisions for padlocking.


Steel Stairstep Bracing @ 100,000 AIC is installed to receive Phase and Neutral Bars on 600V insulators.

Buss Bars

C110 Silver Plated Copper is used on all Phase bars, Neutral, and Ground bars where applicable. Bars are continuously punched with 9/16 ”holes at 1 3⁄/4” each way.


Phase and Neutral Bars are sized to N.E.C. article 374, 374-6 according to the following formula: One square inch of copper cross-section equals 1,000 amps per phase. The Neutral phase is supplied “Full” not half.

Industry Standard

Meets NEMA standard for Type 3R (Rainproof and sleet-ice resistant) enclosures.

Engineering Note

All bussed secondary products require custom engineering drawings for approval. Ask your salesperson for a cost on the drawings

Standard Sizes

Width Height Depth Gauge
30 48 16 14
36 48 16 14
36 60 16 14
48 48 16 12
48 60 16 12