Service (SE)-240-480 volt Base Mount- 2026.pdf

This file is a technical schematic diagram for a 480/120-volt base-mounted electrical service installation. The diagram illustrates a complete electrical system configuration featuring a 480-volt single-phase service with multiple circuit protection and control components. The system includes a 1.0 KVA dry-type transformer, a 480V/120V contactor, a circuit breaker, a DPDT switch, and photoelectric control capabilities. The service is protected by lightning arrestors on both primary and secondary sides, with a 6-amp fuse configuration for the light cabinet. The system supports nine individual circuits distributed across two 200-amp main breakers, with eight circuits rated at 20 amps each and one additional 20-amp circuit.

The electrical configuration includes comprehensive circuit distribution with dedicated neutral lines and provisions for duplex GFI (ground fault interrupt) protection. The schematic appears to serve as a reference guide for installation, maintenance, or upgrade specifications for an industrial or commercial electrical service application. No pricing information, timeline details, set-asides, incumbency information, or contract terms are contained within this technical document.