Installation and Configuration

5.3.1Distribution Box Electrical Connections

Electrical connections are made through a removable power distribution box that attaches to the rear of the UPS.

PD2-CE6HDWRMBS fits the 5000 and 6000VA models of the Liebert GXT3

PD2-CE10HDWRMBS fits the 10,000VA model of the Liebert GXT3

The installer must provide an upstream branch circuit breaker. The input circuit breaker on the distribution box and the output circuit breaker on the rear of the power distribution box disconnect all power between the main cabinet and the distribution box.

Models equipped with a manual bypass breaker pass bypass power directly to the bypass breaker from the input terminal block. The input circuit breaker on the distribution box does not disconnect power from the manual bypass breaker.

Table 1 Branch circuit breaker ratings

Unit Rating

Maximum Breaker Rating

5000VA

D Type 32A

6000VA

D Type 32A

10,000VA

D Type 63A

Figure 11 Distribution box electrical connections diagram

Mains Input

External

Branch CB

PD2-CE6HDWRMBS and

PD2-CE10HDWRMBS

MB CB

Output

 

Input

Output

 

CB

CB

 

 

 

UPS-PFC, Battery Inverter

Terminal Block Connections—PD2-CE6HDWRMBS and PD2-CE10HDWRMBS

Conduit entry holes are provided on the rear and side of the box. Input and output wiring should not share the same conduit. Emerson® recommends using strain relief when installing the wire.

Table 2 Electrical specifications

 

Recommended

Recommended Wire

Maximum Wire

Terminal

 

(Maximum) External

(Including ground wire)

Accepted by

Tightening

UPS Model

Overcurrent Protection

(75°C copper wire)

Terminal Block

Torque

GXT3-5000RT230

32A

4mm2 (10AWG)

6mm2 (8AWG)

2.26 Nm (20 in-lb)

GXT3-6000RT230

 

 

 

GXT3-10000RT230

63A

10mm2 (6AWG)

16mm2 (4AWG)

 

17

Liebert® GXT3

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Emerson 230V, 5000-10 Distribution Box Electrical Connections, Branch circuit breaker ratings, Electrical specifications