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.
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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
MB CB
Output
| Input | Output |
| CB | CB |
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Terminal Block
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 |
32A | 4mm2 (10AWG) | 6mm2 (8AWG) | 2.26 Nm (20 | |
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| |
| 63A | 10mm2 (6AWG) | 16mm2 (4AWG) |
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17 | Liebert® GXT3™ |