Emerson GXT 10KVA Wiring Preparation, Preparing Internal Wiring, Dual Source Configuration

Cable Installation

6.0CABLE INSTALLATION

6.1Wiring Preparation

! WARNING

Please read this section thoroughly before attempting to install wiring to this unit.

Be sure that the unit is not connected to any AC mains power source or UPS before installing any wir- ing to this unit. This Maintenance Bypass Cabinet should be installed by a qualified / certified electri- cian.

6.2Preparing Internal Wiring

The Maintenance Bypass Cabinet is factory-configured for single-source installations. If your installa- tion requires dual-source capabilities, the Maintenance Bypass Cabinet’s wiring must be modified.

6.3Dual Source Configuration

Modifying the wiring consists of removing the jumpers between TB1 and TB2 as described below:

1.Remove cover plates.

2.Identify TB1 and TB2.

3.Using a 3/16" Allen wrench, loosen terminal mounting jumpers between TB1 and TB2.

4.Remove jumpers and retighten terminals to 50 in-lb.

5.Connect primary source to TB2 and secondary source to TB1.

Figure 6 Jumper removal—transformer models and non-transformer models

TRANSFORMER MODELS

GEC

TB1			TB2	TB3
	Cables to be removed
		NON-TRANSFORMER MODELS

TB1	Cables to be removed	TB2
	12