Recommendations; Ce Compliance - Danfoss VLT AutomationDrive FC 301 Design Manual

Electrical Installation

9.3.1.2 Recommendations

The tables in chapter 9.3.1 Fuses and Circuit Breakers list the
recommended rated current. Recommended fuses are of
the type gG for small to medium power sizes. For larger
power sizes, aR fuses are recommended. For circuit
breakers, Moeller types are recommended. Other types of
circuit breakers may be used, provided they limit the
energy into the frequency converter to a level equal to or
lower than the Moeller types.
If fuses/circuit breakers according to recommendations are
selected, possible damage on the frequency converter is
mainly limited to damages inside the unit.
For further information see Application Note Fuses and
Circuit Breakers, MN90T.

9.3.1.3 CE Compliance

Fuses or circuit breakers are mandatory to comply with IEC
60364. Danfoss recommend using a selection of the
following.
Enclosure Power [kW]
A1 0.25-1.5
A2 0.25-2.2
A3 3.0-3.7
A4 0.25-2.2
A5 0.25-3.7
B1 5.5-7.5
B2 11
B3 5.5
B4 7.5-15
C1 15-22
C2 30-37
C3 18.5-22
C4 30-37
Table 9.3 200-240 V, Enclosure Types A, B and C
®
VLT AutomationDrive FC 301/FC 302 Design Guide, 0.25-75 kW
Recommended Recommended
fuse size max. fuse
gG-10
gG-10 (0.25-1.5)
gG-16 (2.2)
gG-16 (3)
gG-20 (3.7)
gG-10 (0.25-1.5)
gG-16 (2.2)
gG-10 (0.25-1.5)
gG-16 (2.2-3)
gG-20 (3.7)
gG-25 (5.5)
gG-32 (7.5)
gG-50
gG-25
gG-32 (7.5)
gG-50 (11)
gG-63 (15)
gG-63 (15) gG-160 (15-18.5)
gG-80 (18.5) aR-160 (22)
gG-100 (22)
aR-160 (30) aR-200 (30)
aR-200 (37) aR-250 (37)
gG-80 (18.5) gG-150 (18.5)
aR-125 (22) aR-160 (22)
aR-160 (30) aR-200 (30)
aR-200 (37) aR-250 (37)
MG33BF02 - Rev. 2013-12-20
The fuses below are suitable for use on a circuit capable of
delivering 100,000 A (symmetrical), 240 V, 500 V, 600 V,
rms
or 690 V depending on the frequency converter voltage
rating. With the proper fusing the frequency converter
short circuit current rating (SCCR) is 100,000 A
The following UL listed fuses are suitable:
•
UL248-4 class CC fuses
•
UL248-8 class J fuses
•
UL248-12 class R fuses (RK1)
•
UL248-15 class T fuses
The following max. fuse size and type have been tested:
Recommended circuit
breaker
Moeller
gG-25 PKZM0-10
gG-25 PKZM0-16
gG-32 PKZM0-25
gG-32 PKZM0-25
gG-32 PKZM0-25
gG-80 PKZM4-63
gG-100 NZMB1-A100
gG-63 PKZM4-50
gG-125 NZMB1-A100
NZMB2-A200
NZMB2-A250
NZMB2-A200
NZMB2-A250
.
rms
Max trip level [A]
9
10
16
25
25
25
63
100
50
100
160
250
150
250
123
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