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7. Installation
7.1 Breakers and Wiring Terminal Block
The input breaker, maintenance bypass breaker and output breaker are located at the front of the Switch Module of the UPS system. The battery
breaker and input/output wiring terminal blocks are at the rear of the Switch Module. To access the terminals from the back of the UPS, remove
®
the protective Plexiglas
panel cover. Wiring installation must be made from the top of the UPS cabinet using the two terminal conduit covers
provided. For connection details, refer to Figure 7.1 (large-frame terminal block shown).
Output Block
Alternate Input Block (Input 2) Alternate AC input source connection
Main Input Block (Input 1)
Grounding Terminal
Battery Input Block
7.2 STS Module Installation
The STS Module and Switch Module are pre-installed in the frame. STS Module comprises:
• Control Circuit
• Power Circuit
• Communication Circuit (including SNMP , Serial [RS-232])
• Internal Static Transfer Switch
• Breaker(s)
Power and Battery Modules can be added according to the user's requirements. The tables on the following page indicate the maximum current
and cable configurations per assembly.
Note: Internal battery modules for Small- and Medium-Frame systems only.
Function
Connection to the supported load
Primary AC input source connection
For UPS grounding
For external battery connection
Figure 7.1
Description
Includes R (L1), S (L2), T (L3) and Neutral terminals
Includes R (L1), S (L2), T (L3) and Neutral terminals
Includes R (L1), S (L2), T (L3) and Neutral terminals
Includes one grounding terminal
Includes Positive (+), Negative (-) and Neutral (N) terminals
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