8.7 Fuses and Circuit Breakers
Use recommended fuses and/or circuit breakers on the supply side as protection if there is component break-down inside
the frequency converter (first fault).
NOTICE
Use of fuses on the supply side is mandatory for IEC 60364 (CE) and NEC 2009 (UL) compliant installations.
Recommendations:
•
gG type fuses.
•
Moeller type circuit breakers. For other circuit breaker types, ensure that the energy into the frequency converter is
equal to or lower than the energy provided by Moeller types.
Use of recommended fuses and circuit breakers ensures that possible damage to the frequency converter is limited to
damages inside the unit. For further information, see
Application Note Fuses and Circuit Breakers
.
The fuses in
to
are suitable for use on a circuit capable of delivering
100000 A
rms
(symmetrical), depending on the frequency converter voltage rating. With the proper fusing, the frequency
converter short circuit current rating (SCCR) is 100000 A
rms
.
8.7.1 CE Compliance
200–240 V
Enclosure
Power [kW]
Recommended
fuse size
Recommended
maximum fuse
Recommended circuit
breaker
Moeller
Maximum trip level
[A]
A1
0.25–1.5
gG-10
gG-25
PKZM0-16
16
A2
0.25–2.2
gG-10 (0.25–1.5)
gG-16 (2.2)
gG-25
PKZM0-25
25
A3
3.0–3.7
gG-16 (3)
gG-20 (3.7)
gG-32
PKZM0-25
25
A4
0.25–2.2
gG-10 (0.25–1.5)
gG-16 (2.2)
gG-32
PKZM0-25
25
A5
0.25–3.7
gG-10 (0.25–1.5)
gG-16 (2.2–3)
gG-20 (3.7)
gG-32
PKZM0-25
25
B1
5.5–7.5
gG-25 (5.5)
gG-32 (7.5)
gG-80
PKZM4-63
63
B2
11
gG-50
gG-100
NZMB1-A100
100
B3
5.5
gG-25
gG-63
PKZM4-50
50
B4
7.5–15
gG-32 (7.5)
gG-50 (11)
gG-63 (15)
gG-125
NZMB1-A100
100
C1
15–22
gG-63 (15)
gG-80 (18.5)
gG-100 (22)
gG-160 (15–18.5)
aR-160 (22)
NZMB2-A200
160
C2
30–37
aR-160 (30)
aR-200 (37)
aR-200 (30)
aR-250 (37)
NZMB2-A250
250
C3
18.5–22
gG-80 (18.5)
aR-125 (22)
gG-150 (18.5)
aR-160 (22)
NZMB2-A200
150
C4
30–37
aR-160 (30)
aR-200 (37)
aR-200 (30)
aR-250 (37)
NZMB2-A250
250
Table 8.13 200–240 V, Enclosure Types A, B, and C
Specifications
Operating Instructions
MG33AQ02
Danfoss A/S © 07/2015 All rights reserved.
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Summary of Contents for VLT AutomationDrive FC 301
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