Secheron UR46-81S, Instruction Manual

Page: 21 / 68

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: c-UR46-8S_inst_en.fm
C-21
UR46-81/82S Installation
C.5 Packing
Always pack the circuit-breaker assembled with the arc chute and protected against impacts and
moisture.
C.6 Storage
Store the circuit-breaker in a dry (maximum 50% of relative humidity at 40°C), clean and covered
place, with a temperature range between -25°C and +55°C.
C.7 Disposal
If the device is to be permanently disposed of, disassemble it as far as possible and separate the
following materials:
– stainless steel
– copper and copper alloys
– aluminium
– rubber (seals, etc.)
– plastics
– electrical cables
– permanent magnets
Recycle or dispose of all materials and components in compliance with local regulations.
C.8 Tightening torques
C.8.1 General procedure
Each screw/nut needs to be tightened to a specific torque. Torques that are different from the
table below are indicated throughout this manual in their corresponding sections.
Put a new elastic washer each time one has been loosened.
For the purpose of checking the tightening of all screws and nuts, paint
a red line (1) from the screw/nut (2) onto the parts (3) after having tight-
ened any screw/nut to the requested torque.
C.8.2 Standard tightening torques
Unless specially indicated, use these values for greased stainless steel bolts.
Thread diameter
M3 M4 M5 M6 M8 M10 M12
Torque [Nm] ± 10% for A2/A4-70
1 1.7 3.4 5.9 14.5 30 50
Torque [Nm] ± 10% for A2/A4-80
1.3 2.3 4.6 8.0 19.3 39.4 67
1
3
2