Danfoss VLT AutomationDrive FC 302 - Page 154

Enclosure 415 V 480 V 600 V 690 V
D6h 120000 A 100000 A 65000 A 70000 A
D8h 100000 A 100000 A 42000 A 30000 A
Table 10.13 D6h and D8h Supplied with a Circuit Breaker
If the drive is supplied with a contactor-only option and is externally fused according to Table 10.14, the SCCR of the drive is
as follows:
Enclosure 415 V
IEC
1)
480 V
UL
2)
600 V
UL
2)
690 V
IEC
1)
D6h 100000 A 100000 A 100000 A 100000 A
D8h (not including the N250 T5 model) 100000 A 100000 A 100000 A 100000 A
D8h (N250 T5 model only) 100000 A Consult factory Not applicable Not applicable
Table 10.14 D6h and D8h Supplied with a Contactor
1)
With a Bussmann type LPJ-SP or Gould Shawmut type AJT fuse. 450 A maximum fuse size for D6h and 900 A maximum fuse size for D8h.
2)
Must use Class J or L branch fuses for UL approval. 450 A maximum fuse size for D6h and 600 A maximum fuse size for D8h.
E1h–E4h recommended fuses
The fuses listed in Table 10.15 are suitable for use on a circuit capable of delivering 100000 A
rms
(symmetrical), depending on
the drive voltage rating. With the proper fusing, the drive short circuit current rating (SCCR) is 100000 A
rms
. E1h and E2h
drives are supplied with internal drive fusing to meet the 100 kA SCCR and to comply with UL 61800-5-1 enclosed drive
requirements. E3h and E4h drives must be tted with Type aR fuses to meet the 100 kA SCCR.
Input voltage (V) Bussmann ordering number
380–500 170M7309
525–690 170M7342
Table 10.15 E1h–E4h Fuse Options
Bussmann Rating
LPJ-21/2SP 2.5 A, 600 V
Table 10.16 E1h–E2h Space Heater Fuse Recommendation
NOTICE
DISCONNECT SWITCH
All units ordered and supplied with a factory-installed disconnect switch require Class L branch circuit fusing to meet
the 100 kA SCCR for the drive. If a circuit breaker is used, the SCCR rating is 42 kA. The input voltage and power rating
of the drive determines the specic Class L fuse. The input voltage and power rating is found on the product
nameplate. For more information regarding the nameplate, see the operating guide.
Input voltage (V) Power rating [kW (hp)] Short circuit rating (A) Required protection
380–500 315–400 (450–550) 42000 Circuit breaker
100000 Class L fuse, 800 A
380–500 450–500 (600–650) 42000 Circuit breaker
100000 Class L fuse, 1200 A
525–690 355–560 (400–600) 40000 Circuit breaker
100000 Class L fuse, 800 A
525–690 630–710 (650–750) 42000 Circuit breaker
100000 Class L fuse, 1200 A
Electrical Installation Con... VLT® AutomationDrive FC 302
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