25
L20, L30
5.8.
External protective devices
For safety reasons, it is necessary to install an external circuit breaker at the input AC utility
and to the battery.
5.8.1.
External battery
The UPS and its associated batteries are protected against the effect of over-current through
a DC compatible thermo-magnetic circuit breaker located close to the battery.
5.8.2.
UPS output
Any external distribution board used for load distribution must be fitted with protective
devices to avoid the risk of UPS overload.
5.8.3.
Over-current protection
A protection device must be installed at the distribution panel of the incoming utility power
and should identify the power cables current capacity as well as the overload capacity of the
system.
CAUTION!
Select a thermo-magnetic circuit-breaker with an IEC 60947-2 trip curve C
(normal) for 125% of the current as listed below.
•
L20: 40A Input Circuit Breaker required.
•
L30: 63A Input Circuit Breaker required.
5.9.
Power cables
The cable design must comply with the voltages and currents provided in this section, and in
accordance with local electrical codes.
WARNING - RISK OF LETHAL ELECTRIC SHOCK:
Upon starting, please ensure that you are aware of the location and operation
of the external isolators which are connected to the ups input/bypass supply of
the utility distribution panel.
Summary of Contents for L20-IB60, L20-IB00
Page 2: ......
Page 17: ...9 L20 L30 Figure 5 Install covers...
Page 27: ...19 L20 L30 5 5 Cabinet view Figure 15 Front view Side view of L20 and L30...
Page 31: ...23 L20 L30 5 7 Electrical Diagrams Figure 19 Remote EPO NO and NC port...
Page 32: ...24 L20 L30 Figure 20 External maintenance bypass auxiliary contacts...
