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User’s Guide
NPM800 – NPM800R
NPM800RE
Date : 05/2013
Edition :30/01/2014
Folio : 4
Indice : g
1. Safety instructions
For your safety, we recommend you to read the following information carefully. They aim to
specify the precautions essential to the good installation and the correct operation of the
relays.
1.1 Documentation
Following documentations are available for the NP800 and NP800R:
♦
Application guide of the NP800 and NP800R series
♦
User’s Guide of Setting Software
♦
User’s Guide (for each kind of relay)
♦
First Handling Guide (for each kind of relay)
♦
Diagram of each relay
♦
Dimensions and mounting diagram
♦
Matrix choice and dimensions of ring core type C.T.
♦
User’s Guide and diagram of the BA800
We advise you to read them before any handling.
1.2 Connection of the relays
The terminal blocks of the relays are studied to ensure the safety of the people during the
operation of the relays.
During installation, commissioning or maintenance, they can however present high voltages
and possibly a thermal heating. Consequently, the following precautions must be respected:
♦
Connection of the terminal blocks at installation must be carried out after having
ensured of the absence of any voltage
♦
Their access during operation must be carried out through adequate means ensuring
as well electric as thermal insulation
♦
The connection of the earth of the relays must imperatively be done with mean of a
2.5 mm² wire.
Before powering the relays, it will be necessary to check in particular:
♦
The value of the voltage rating of the auxiliary supply and its polarization
♦
The tightening of the:
- fixing rods of the current terminal blocks (NPM800)
- fixing rods of the relay case (NPM800R - NPM800RE)
♦
The good realization of connections
♦
The integrity of the connection to the earth.
1.3 On load withdrawal
With voltage or on load, it is formally misadvised to withdraw the:
- connectors and the current terminal blocks*
- relay (NPM800R - NPM800RE)
* for NPM800 relay fitted with short-circuiting devices
1.4 Removal and destruction