Connections Of Input/Output Power Cables; Ups With Common Normal And Bypass Ac Sources - MGE UPS Systems Comet EX RT Series Installation And User Manual

2.7 Connections of input/output power cables

This type of connection must be carried out by qualified electrical personnel.
Before carrying out any connection, check that the battery circuit breaker 12 and that the upstream protection devices
(Normal and Bypass AC sources) are open ("0").
Comet EX RT UPS always comes from factory with Normal and Bypass AC inputs already connected together, using a
bridge.
Use included insulated ferrules with stranded wires.

UPS with common Normal and Bypass AC sources

t
O ut pu
L
N
In pu t
By pa ss
L2
t N 2
ie r In pu
R ec tif
L1
L1
L2
L3
N 1
1
1
t
O ut pu
L
N
5
In pu t
By pa ss
L2
t
ie r In pu N 2
R ec tif
L1
L1
L2
L3
N 1
2
3
t
O ut pu
L
N
In pu t
By pa ss
L2
t
ie r In pu N 2
R ec tif
L1
L1
L2
L3
N 1
6
6
φ
1
1
1
4
6
6
6
7
M A L
N O R
7
7
2. Installation
To access the connection terminal blocks,
see section 1.2 "Rear panel":
1 - Remove the terminal block cover
(5 screws),
2 - Insert the Normal AC cable through the
cable gland,
3 - Connect the 5 wires to the Normal AC
terminal block,
Always connect the earthing
wire first.
4 - Insert the output cable to the load
through the output cable gland,
5 - Connect the 3 wires to the output
terminal block,
6 - Refit the terminal block cover and tighten
the cable glands,
7 - Secure the junction Input/Output box to
the rear of the power module by means of
the 3 screws.
34007724EN/AA
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