Enclosure
Size
Power [kW] Recommended
fuse size
Recommended
Max. fuse
Recommended circuit
breaker
Max trip level [A]
Moeller
B1 11-18 gG-25 (11)
gG-32 (15)
gG-40 (18.5)
gG-80 PKZM4-63 63
B2 22-30 gG-50 (22)
gG-63 (30)
gG-100 NZMB1-A100 100
B3 11-15 gG-25 (11)
gG-32 (15)
gG-63 PKZM4-50 50
B4 18.5-30 gG-40 (18.5)
gG-50 (22)
gG-63 (30)
gG-125 NZMB1-A100 100
C1 37-55 gG-63 (37)
gG-100 (45)
aR-160 (55)
gG-160 (37-45)
aR-250 (55)
NZMB2-A200 160
C2 75 aR-200 (75) aR-250 NZMB2-A250 250
C3 37-45 gG-63 (37)
gG-100 (45)
gG-150 NZMB2-A200 150
C4 55-75 aR-160 (55)
aR-200 (75)
aR-250 NZMB2-A250 250
Table 3.9 525-600 V, Frame Sizes B and C
UL Compliance
Fuses or circuit breakers are mandatory to comply with NEC 2009. Danfoss recommends using a selection of the following.
The fuses below are suitable for use on a circuit capable of delivering 100,000 Arms (symmetrical), 240 V, 480 V, 500 V, or
600 V depending on the unit's voltage rating. With the proper fusing, the frequency converter’s Short Circuit Current Rating
(SCCR) is 100,000 Arms.
Recommended max. fuse
Power
[kW]
Bussmann Bussmann Bussmann Bussmann Bussmann Bussmann
11 KTN-R-80 JKS-80 JJN-80 - - -
15-18.5 KTN-R-125 JKS-125 JJN-125 - - -
22 KTN-R-150 JKS-150 JJN-150 - - -
30 KTN-R-200 JKS-200 JJN-200 - - -
37 KTN-R-250 JKS-250 JJN-250 - - -
Table 3.10 200-240 V, Frame Sizes B and C
Recommended max. fuse
Power[kW]
SIBA Littel fuse
Ferraz-
Shawmut
Ferraz-
Shawmut
Type RK1 Type RK1 Type CC Type RK1
11 5014006-080 KLN-R-80 - A2K-80-R
15-18.5 2028220-125 KLN-R-125 - A2K-125-R
22 2028220-150 KLN-R-150 - A2K-150-R
30 2028220-200 KLN-R-200 - A2K-200-R
37 2028220-250 KLN-R-250 - A2K-250-R
Table 3.11 200-240 V, Frame Sizes B and C
How to Install Operating Instructions
MG34M422 Danfoss A/S © Rev. 2013-07-03 All rights reserved. 31
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