NEMA 3R Bus Secondary

NEMA 3R Center Point Energy Terminal Box




EPI NEMA 3R Center Point Energy Terminal Box is a dual access secondary. It is constructed of 14 Gauge Steel, primed with gray-oxide and enamel painted inside and out with Sherwin Williams ANSI-70, Light-Dove Grey. The doors have continuous stainless steel hinge cover doors with a stainless steel hinge. A Three-point handle with provisions for padlocking is installed in both doors. An open bottom with a mounting flange is installed.


Steel Bracing @ 100,000 AIC, is installed to receive Phase and Neutral Bars on 3” 600V insulators. 

Buss Bars

CD 110 Silver Plated Copper is used on all Phase bars, Neutral and Ground bars where applicable. Ampacity is determined by one square inch cross section of copper equaling 1,000 Amps. Bars are continuously punched with 9/16 ”holes at 1 3⁄4” each way.


The Tap box has two separate compartments, one side for CNP connections and the other side for customer’s connection. The insulating barriers are to be 1/2” phenolic resin impregnated barrier boards (NEMA Grade N-1 or GPO-3).

Industry Standard

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


Custom sizes available.

Width Height Depth Gauge
30 30 30 16


NEMA 3R Center Point Energy Terminal Box