Fuse And Circuit Breaker Specifications - Danfoss VLT DriveMotor FCP 106 Design Manual

Specifications

6.8 Fuse and Circuit Breaker Specifications

Overcurrent protection
Provide overload protection to avoid overheating of the cables in the installation. Always carry out overcurrent protection
according to local and national regulations. Design fuses for protection in a circuit capable of supplying a maximum of
100000 A (symmetrical), 480 V maximum. See Table 6.7 and Table 6.8 for circuit breaker capacity for Danfoss CTI25M
rms
circuit breaker at 480 V maximum.
UL/non-UL compliance
To ensure compliance with UL 508C or IEC 61800-5-1, use the circuit breakers or fuses listed in Table 6.7, Table 6.8, and
Table 6.9.
NOTICE
EQUIPMENT DAMAGE
If there is a malfunction, failure to follow the protection recommendation can result in damage to the drive.
6 6
Enclosure
size
MH1
MH2
MH3
Table 6.7 Circuit Breakers, UL
1) Power ratings relate to normal overload (NO), see chapter 6.2 Electrical Data.
Enclosure
size
MH1
MH2
MH3
Table 6.8 Circuit Breakers, Non-UL
1) Power ratings relate to normal overload (NO), see chapter 6.2 Electrical Data.
2) Trip level maximum set to 32 A.
56
®
VLT
1)
Power [kW (hp)]
3x380–480 V Recommended UL
0.55 (0.75) CTI25M - 47B3146
0.75 (1.0) CTI25M - 47B3147
1.1 (1.5) CTI25M - 47B3147
1.5 (2.0) CTI25M - 47B3148
2.2 (3.0) CTI25M - 47B3149
3.0 (4.0) CTI25M - 47B3149
4.0 (5.0) CTI25M - 47B3150
5.5 (7.5) CTI25M - 47B3150
7.5 (10) CTI25M - 47B3151
Power 1) [kW (hp)]
Recommended
3x380–480 V
0.55 (0.75) CTI25M - 47B3146
0.75 (1.0) CTI25M - 47B3147
1.1 (1.5) CTI25M - 47B3147
1.5 (2.0) CTI25M - 47B3148
2.2 (3.0) CTI25M - 47B3149
3.0 (4.0) CTI25M - 47B3149
4.0 (5.0) CTI25M - 47B3150
5.5 (7.5) CTI25M - 47B3150
7.5 (10) CTI25M - 47B3151
Danfoss A/S © 12/2018 All rights reserved.
DriveMotor FCP 106
Circuit breaker
Breaking
capacity
100000
100000
100000
100000
50000
50000
6000
6000
6000
Circuit breaker
Breaking
non-UL capacity
100000
100000
100000
100000
100000
100000
50000
50000
15000
Maximum UL
CTI25M - 047B3149
CTI25M - 047B3149
CTI25M - 047B3150
CTI25M - 047B3150
CTI25M - 047B3151
CTI25M - 047B3151
CTI25M - 047B3151
CTI25M - 047B3151
CTI25M - 047B3151
Maximum non-UL
CTI25M - 47B3149
CTI25M - 47B3149
CTI25M - 47B3150
CTI25M - 47B3150
CTI25M - 047B3151
CTI25M - 047B3151
CTI25M - 047B3102 2)
CTI25M - 047B3102 2)
1)
CTI25M - 047B3102
Breaking
capacity
50000
50000
6000
6000
6000
6000
6000
6000
6000
Breaking
capacity
100000
100000
50000
50000
15000
15000
15000
15000
15000
MG03M302