Arbc (Auxiliary Remote Bypass Contact); Insertion Of Power Modules - LEGRAND Archimod HE 240 Installation And Maintenance Manual

Archimod HE 240-480®

4.2.12 ARBC (Auxiliary Remote Bypass Contact)

The Archimod HE 240-480 makes it possible to enable forced bypass operation of the UPS without performing any
operation from the control panel but simply by means of a normally open external contact.
The external bypass contact terminal is found on the DIN rail at the top left in the UPS cabinet having the connection busbars.
For the correct connection of the external contact, the following requirements must be adhered to:
- use a double-insulation cable of up to 10 meters in length;
- make sure that the switch used is galvanically isolated.
The electric characteristics of the auxiliary remote bypass contact are the following:
- voltage with open contacts: less than 100 V
- current with closed contacts: less than100 mA
The figure below shows how the external bypass contact must be connected:
4.3

Insertion of power modules

Once all the electrical connections have been made, all the UPS panels can be screwed up again and the power modules
can be inserted in the UPS.
Insert the power modules one at a time checking that they abut. Fix them to the frame with the two screws provided with
each module , making sure that they are tightly fixed. Use the SHC M4x20 screws (hex socket head). The two fixing screws
also act as the module's earth connection and must both be fixed for safety purposes.
If one or more power modules is not installed, the free slots must be covered by putting the plastic cover of the kit
3 108 66 in each of them. The cover must be fixed with two TCEI M4x20 screws.
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