Fuses - Danfoss VLT Automation Drive FC 300 Operating Instructions Manual

®
VLT Automation Drive FC 300
Operating Instructions High Power

3.6.13. Fuses

Branch circuit protection:
In order to protect the installation against electrical and fire hazard, all branch circuits in an installation, switch gear, machines etc., must be short-circuited
and over-current protected according to national/international regulations.
Short-circuit protection:
The frequency converter must be protected against short-circuit to avoid electrical or fire hazard. Danfoss recommends using the fuses mentioned below
to protect service personnel and equipment in case of an internal failure in the drive. The frequency converter provides full short-circuit protection in case
of a short-circuit on the motor output.
Over-current protection
Provide overload protection to avoid fire hazard due to overheating of the cables in the installation. The frequency converter is equipped with an internal
over-current protection that can be used for upstream overload protection (UL-applications excluded). See par. 4-18. Moreover, fuses or circuit breakers
can be used to provide the over-current protection in the installation. Over-current protection must always be carried out according to national regulations.
Fuses must be designed for protection in a circuit capable of supplying a maximum of 100,000 A
Bussmann Bussmann
Size/
E1958
Type
JFHR2** T/JDDZ**
P90K FWH-
300
P110 FWH-
350
P132 FWH-
400
P160 FWH-
500
P200 FWH-
600
Table 3.4: D enclosures, 380-500 V
*170M fuses from Bussmann shown use the -/80 visual indicator, -TN/80 Type T, -/110 or TN/110 Type T indicator fuses of the same size and amperage
may be substituted for external use
**Any minimum 500 V UL listed fuse with associated current rating may be used to meet UL requirements.
Bussmann
Size/Type E125085
JFHR2
P37K 170M3013
P45K 170M3014
P55K 170M3015
P75K 170M3015
P90K 170M3016
P110 170M3017
P132 170M3018
P160 170M4011
P200 170M4012
P250 170M4014
P315 170M5011
Table 3.5: D enclosures, 525-690 V
SIBA LittelFuse
E4273 E180276 E71611
RKI/JDDZ JFHR2**
JJS- 2028220- L50S-300
300 315
JJS- 2028220- L50S-350
350 315
JJS- 206xx32- L50S-400
400 400
JJS- 206xx32- L50S-500
500 500
JJS- 206xx32- L50S-600
600 600
SIBA
Amps E180276
JFHR2
125 2061032.125
160 2061032.16
200 2061032.2
200 2061032.2
250 2061032.25
315 2061032.315
350 2061032.35
350 2061032.35
400 2061032.4
500 2061032.5
550 2062032.55
MG.33.U2.02 - VLT ® is a registered Danfoss trademark
(symmetrical).
rms
Fuse Tables - High Power
Ferraz-
Bussmann Bussmann
Shawmut
E4274
E60314
H/JDDZ**
JFHR2**
A50-P300 NOS- 170M3017
300
A50-P350 NOS- 170M3018
350
A50-P400 NOS- 170M4012
400
A50-P500 NOS- 170M4014
500
A50-P600 NOS- 170M4016
600
Ferraz-Shawmut
E76491
JFHR2
6.6URD30D08A0125
6.6URD30D08A0160
6.6URD30D08A0200
6.6URD30D08A0200
6.6URD30D08A0250
6.6URD30D08A0315
6.6URD30D08A0350
6.6URD30D08A0350
6.6URD30D08A0400
6.6URD30D08A0500
6.6URD32D08A550
3. How to Install
Internal
E125085 Option
JFHR2* Bussmann
170M3018
170M3018
170M4016
170M4016
170M4016
Internal
Option
Bussmann
170M3015
170M3015
170M3015
170M3015
170M3018
170M3018
170M3018
170M5011
170M5011
170M5011
170M5011
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