OPM_LPS_33E_10K_30K_4CN_V010.doc 28/82 Operating Manual LP 33 / 10-20-30 kVA
4.7.2 Fuse ratings
Fig. 4.7.2-1 Mains input and battery fuses
LP 33 fuses
The UPS is equipped with rectifier input fuses
F1, F2, F3 and battery fuses F9, F10, F11.
In case of replacement the same type and the
same rating must be used (see table below).
Fuses type URD 660/690V Fuses type gG-gL 660/690V
UPS model
F1 - F2 - F3 F9 - F10 - F11
LP 33 / 10 kVA 20A (14 x 51) 25A (14 x 51)
LP 33 / 20 kVA 40A (14 x 51) 50A (14 x 51)
LP 33 / 30 kVA 63A (22 x 58) 80A (22 x 58)
Required protective devices
If ELCB breakers are prescribed to protect the input connections, consider the high leakage current
towards the earth generated by the noise-suppressor capacitors.
If strongly prescribed, the ELCB breakers should be the largest type suitable for non-linear current
and for delayed operation.
Fig. 4.7.2-2 Common input mains
Fig. 4.7.2- Separated input mains (option)
Fuses (gL) or Circuit Breakers rating
for AC input 3x380/220V, 3x400/230V, 3x415/240V
UPS model
F1 F2 F3
F4 (external battery)
LP 33 / 10 kVA 3 x 25A 3 x 25A 3 x 20A 2 x 25A
LP 33 / 20 kVA 3 x 50A 3 x 50A 3 x 35A 2 x 50A
LP 33 / 30 kVA 3 x 63A 3 x 63A 3 x 50A 2 x 80A
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