3.4.
Connection to power supply
Warning!
A qualified electrician must make the connection to the mains supply.
Each
e-Brick
requires:
1) 3-Phase mains supply with a Protective Earth connection (3P+E); note that no neutral
connection is made.
2) Permanently installed wiring fed by a suitably rated ‘D-curve’ 3 pole Miniature Circuit Breaker
(MCB) to protect the incoming mains supply cable and allow isolation of an individual
e-Brick
. For
North America and Canada Moulded Case Circuit Breakers (MCCB) shall be used for branch
circuit protection.
3) A suitably rated supply disconnection device to allow isolation of the mains supply to the
e-
Brick
installation. It is recommended that this shall be easily accessible by the operator.
3.4.1. Essential electrical installation data
Refer to Table 3 for peak mains supply current, suggested minimum supply cable cross
sectional area and MCB ratings for
e-Brick
product variants. These recommendations are
in accordance with BS7671:2008 Table 4D2A reference method E.
e-Brick
variant
Current / phase (A)
Supply cable
size (mm
2
)
MCB rating (A)
9kW 20
4 25
12kW 25
4 25
22kW 57
16 63
Table 3: Supply connection specification
Refer to Table 4 for peak mains supply current, suggested minimum supply cable cross
sectional area and MCB ratings for
e-Brick
product variants 33276 and 33485. These
recommendations are in accordance with NFPA79 Electrical Standard for Industrial
Machinery Table 13.5.1.
e-Brick
variant
Current / phase (A)
Supply cable
size (mm
2
)
MCCB
rating (A)
22kW (Canada)
[33276 / 33485]
45 16
50
Table 4: Supply connection specification (22kW for Canada/USA)
Advice!
Every
e-Brick
system is supplied with an electrical wiring diagram containing system
specific installation information.
Advice!
Electrical installation standards vary worldwide and local regulations shall be observed.
3.4.2. Residual current devices
The internal EMC filters of the
e-Brick
are designed with a maximum earth leakage of 20mA;
this should be taken in to account when specifying residual current protection devices.
GEW UV
e-Brick
installation and operating manual
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