Secheron UR46-81S, Instruction Manual

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Options UR46-81/82S
Document number: SG104148TEN Revision: B01 Issue date: 20.8.2012
Copyright© 2012 Sécheron SA - This document is not contractual and contains information corresponding to the level of technology at the date of release.
G-60
File: g-UR46-8S_options_en.fm
G.3.3 Troubleshooting
G.4 Indirect releases
G.4.1 Description
The indirect releases reduce the mechanical opening time of the circuit-breaker when required
by specific applications. Depending on the application, one of the two following indirect releases
has been selected according to Sécheron recommendations:
• The BIM5 is controlled by a CID-3 control unit and the colour of its axle end (10) is black.
• The BIM6 is directly connected to the battery and the colour of its axle end (10) is brass-
yellow.
The circuit-breaker can be remotely opened by a pulse sent to the coil (11), which rotates (8) the
plate (2), thereby lifting (6) the fork (3) and opening the moving contact (4).
02652-2
Note! The BIM5 and BIM6 indirect releases can be used as manual releases by pushing on the axle (1)
end.
The force F needed to perform a manual release is 80 N. The stroke of the axle (1) until the
release point is 8 mm, on a total possible stroke of 10 mm.
Fault Possible causes Remedies See §
Circuit-breaker does not trip
following an order.
1. Lever (4) does not rotate
or plate (3) does not lift.
2. J clearance too wide.
Adjust the J clearance
and tighten the screw (8)
or both screws (9).
G.3.2
Circuit-breaker does not
close. The lever (4) or plate (3)
always lift the fork.
Important!
The duration of the pulse coming from a battery must not exceed 1 second to avoid
burning the coil!
When the circuit-breaker trips following an indirect release, the fork (3) remains in
closed position and need to be reset (18) to its open position by giving an “OFF”
order to the closing coil.
11
10
7
8
F
2
J
4
5
6
1
3
2
18
26.5
1
±0.5