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.
File: g-UR46-8S_options_en.fm
G-65
UR46-81/82S
Options
G.8
Direct release type DE
G.8.1
Description
•
Easy access to the trip setting
•
Easy reading of the trip setting value on an amperes graduated scale.
•
Easy change of the trip setting value by the customer.
•
Same mechanical performance (T
mec
) as the standard direct release.
Main setting ranges
G.8.2
Maximum current release (Id) settings
Two different settings are performed:
A. The setting of the main range is done by Sécheron by means of the nut (1) and counter
nut (2), which are tightened at the factory.
B. The thin regulation, by step of 200 A, is performed by the customer on the side of the circuit-
breaker:
– Loosen the nut (4) with a 19 mm flat key (7).
– Turn the screw (5) with a 5 mm Allen key (8) until the marker (6) reaches the desired
value on the scale (3); turn clockwise to rise the l
ds
value and counter clockwise to lower
it.
– Hold the screw (5) to tighten the nut (4) with a tightening torque of 30 Nm.
03664
G.8.3
Maintenance
See §
D.12 "Replacement of the direct release"
.
Important!
When the circuit-breaker trips following a direct release, the fork remains in
closed position and need to be reset to its open position by giving an “OFF”
order to the closing coil.
Variant
DE 1
DE 2
DE-3
DE 4
Setting ranges
2 – 5 kA
4 – 8 kA
6 – 10 kA
9 – 15 kA
Important!
The customer is not allowed to change this setting.
3
6
A
B
1
2
4 5
8
7
Содержание UR46-81S
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