limit the energy into the frequency converter to an equal
or lower level than the compliant circuit breakers.
If fuses/circuit breakers according to recommendations are
selected, possible damage on the frequency converter is
mainly limited to damage inside the unit.
4.3.8 High Power Fuses
525-690 V, frame sizes D, E and F
The fuses below are suitable for use on a circuit capable of
delivering the Short Circuit Current Rating (SCCR) of
100,000 Amps (symmetrical).
Size/Type
Bussmann
PN*
Rating Siba
P630-
P900
170M7081 1600 A, 700 V 20 695 32.1600
P1M0 170M7082 2000 A, 700 V 20 695 32.2000
P1M2-
P1M4
170M7083 2500 A, 700 V 20 695 32.2500
P1M6 170M7084 3000 A,700 V
Table 4.5 Frame Size F, Line Fuses, 525-690 V
Size/Type
Bussmann
PN*
Rating Siba
P630-
P1M6
170M8611 1100 A,
1000 V
20 781 32. 1000
Table 4.6 Frame Size F, Inverter Module DC Link Fuses, 525-690 V
*170M fuses from Bussmann use the -/80 visual indicator, -TN/80
Type T, -/110 or TN/110 Type T indicator fuses of the same size and
amperage may be substituted for the external use.
Supplementary fuses
Frame size
Bussmann PN* Rating
D, E and F KTK-4 4 A, 600 V
Table 4.7 SMPS Fuse
Size/Type
Bussmann PN* LittelFuse Rating
P37K-P400,
525-690 V
KTK-4 4 A, 600 V
P500-P1M6,
525-690 V
KLK-15 15 A, 600 V
Table 4.8 Fan Fuses
Bussmann PN Rating
FWC-20A-10F 20 A, 600 V
Table 4.9 Fan Voltage/Softcharge Fuse
How to Install
Operating Instructions
34 Danfoss A/S © Rev. 05/2014 All rights reserved. MG33X402
44
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