Danfoss vlt FC 102 User Manual

4.6.14 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 Current Limit . 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.
Non UL compliance
If UL/cUL is not to be complied with, we recommend using the following fuses, which will ensure compliance with EN50178:
P160 - P250 380 - 480 V type gG
P315 - P450 380 - 480 V type gR
UL Compliance
380-480 V, frame sizes D, E and F
The fuses below are suitable for use on a circuit capable of delivering 100,000 Arms (symmetrical), 240V, or 480V, or 500V, or 600V depending on the
drive voltage rating. With the proper fusing the drive Short Circuit Current Rating (SCCR) is 100,000 Arms.
Size/
Type
Bussmann
E1958
JFHR2**
Bussmann
E4273
T/JDDZ**
SIBA
E180276
JFHR2
LittelFuse
E71611
JFHR2**
Ferraz-
Shawmut
E60314
JFHR2**
Bussmann
E4274
H/JDDZ**
Bussmann
E125085
JFHR2*
Internal
Option
Bussmann
P160 FWH-
400
JJS-
400
2061032.40 L50S-400 A50-P400 NOS-
400
170M4012 170M4016
P200 FWH-
500
JJS-
500
2061032.50 L50S-500 A50-P500 NOS-
500
170M4014 170M4016
P250 FWH-
600
JJS-
600
2062032.63 L50S-600 A50-P600 NOS-
600
170M4016 170M4016
Table 4.3: Frame size D, Line fuses, 380-480 V
Size/Type Bussmann PN* Rating Ferraz Siba
P315 170M4017 700 A, 700 V 6.9URD31D08A0700 20 610 32.700
P355 170M6013 900 A, 700 V 6.9URD33D08A0900 20 630 32.900
P400 170M6013 900 A, 700 V 6.9URD33D08A0900 20 630 32.900
P450 170M6013 900 A, 700 V 6.9URD33D08A0900 20 630 32.900
Table 4.4: Frame size E, Line fuses, 380-480 V
Size/Type Bussmann PN* Rating Siba Internal Bussmann Option
P500 170M7081 1600 A, 700 V 20 695 32.1600 170M7082
P560 170M7081 1600 A, 700 V 20 695 32.1600 170M7082
P630 170M7082 2000 A, 700 V 20 695 32.2000 170M7082
P710 170M7082 2000 A, 700 V 20 695 32.2000 170M7082
Table 4.5: Frame size F, Line fuses, 380-480 V
Size/Type
Bussmann PN* Rating Siba
P500 170M8611 1100 A, 1000 V 20 781 32.1000
P560 170M8611 1100 A, 1000 V 20 781 32.1000
P630 170M6467 1400 A, 700 V 20 681 32.1400
P710 170M6467 1400 A, 700 V 20 681 32.1400
Table 4.6: Frame size F, Inverter module DC Link Fuses, 380-480 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
VLT HVAC Low Harmonic Drive Operating In-
structions 4 How to Install
MG.16.A1.02 - VLT
®
is a registered Danfoss trademark 55
4

Danfoss vlt FC 102 Specifications

General

Brand	Danfoss
Model	vlt FC 102
Category	DC Drives
Language	English