MGE UPS Systems EX-7 Connecting EX RT Transformer Module, 120VAC output terminals Lb-N, La-N

Installation and User Manual

2.7.2Connecting EX RT Transformer Module

(Part number 86211)

This module is to provide isolated 120/208/240 VAC outputs to the protected loads.

Figure 2-13: View of EX RT Transformer Module connected downstream for 120/208/240 Vac outputs (shown with one EXB).

BATTERY MODULE

EXB 5/7/11 RT

POWER MODULE

EX 5/7/11 RT

Transformer Module I/O Box

L3 L2 L1

Lb Ld N Lc La

TRANSFORMER

MODULE EX RT

		AC Input from	AC Output to Load
			(120VAC shown)
AC NORMAL		Power Module
		(208VAC shown)
INPUT	TRANSFORMER MODULE

OUTPUT TO LOAD

WARNING	To avoid overloading transformer windings, provide branch over current
	protection for all transformer output terminals.
	To avoid overloading 120VAC output windings, distribute loads evenly
	between Load 2 and Load 4 (on rear of Transformer Module ) and between
	120VAC output terminals (Lb-N, La-N.)

Terminal Block Transformer Module Connection diagram (located on bottom of Transformer I/O Box)

L3

L2

L1

Lb

Ld

N

Lc

La

208Vac

120Vac

120Vac

208Vac

240Vac

240Vac

AC Input

AC Output

Terminal Block capability : AWG 4 solid or stranded wire.

Simplified Connection Diagram

UPSTREAM	Bypass AC
CIRCUIT
BREAKER
(NOT SUPPLIED)
AC INPUT	Normal AC

Transformer Module

To Load

86-86000-00 B00 Installation 2 — 15