VC & VH Consumer Unit
Instructions/Data Sheet
This Consumer Unit and Hager devices conform with the following standards:
Consumer Unit: BS EN 61439-3 including Annex ZB.
Switch-disconnectors: BS EN 60947-3.
Residual Current Circuit Breaker (RCCB): BS EN 61008-1
Residual current operated circuit breaker with integral overload (RCBO): BS EN 61009-1
Miniature Circuit Breaker (MCB): BS EN 60898-1
Installation Instructions:
All product(s) must be installed by a suitably competent electrician
Giving consideration to their intended use and in accordance with the
current edition of BS 7671 (IET Wiring Regulations).
The Electricity at Work regulations and the Health and Safety at Work Act
shall be complied with.
Only equipment and arrangements specified in Hager’s technical
documentation / catalogue shall be used.
Install in the horizontal plane only.
Important notice:
To prevent potential overheating from loose connections the installer
shall check connections are tight to the torque levels stated in these
instructions prior to energizing this board. This check should include
factory made connections which may have loosened in transit.
Tightening torque values to be applied (Nm)
Switch-disconnector’s: 40A & 63A: 2.8 Nm
Switch-disconnector’s: 100A: 3.3 Nm
RCCB’s 40A & 63A: 2.8 Nm
RCCB’s 80A & 100A: 3.3 Nm
MCBs: 2.8 Nm
RCBO’s: 2.8 Nm
Earth & Neutral terminal bar connections: 2.0 Nm
Single conductors below 1.5mm² need to be doubled back in the
terminal bar
Front metal cover fixing screws: 2.0 Nm
Good workmanship and proper materials must be applied by the installer.
Metalclad units are provided with knockouts for standard 20, 25, and
32mm conduit and large rear knockouts.
Insulated units are provided with breakouts for standard mini trunking.
Rear cable entries should be scored along the weak point with a sharp
knife, and tapped sharply to remove.
Pull and lift the terminal bar support away from the unit resting the rail
supported by the earth strap. After fixing conduit/ cable glands, locate
the rail support and press down.
Note: Only BASEC approved cable should be used
1.0mm
2
to 16mm
2
for outgoing cables
up to 35.0mm
2
for incoming live cables
Single conductors below 1.5mm² need to be doubled back in the terminal bar.
Cable entry facilities:
Metal Unit - Removing and replacing the terminal rail for cabling:
GB
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ZD0632 - Issue 5 03-15
ZD0632
ZD0632
