Danfoss VLT AutomationDrive FC 301 Design Guide

91 92 93
91 92 93
96 97 98
88 89
81 82
99
95
130BA718.10
Illustration 9.27 Mains Connection Enclosures C3 (IP20).
91
L1
L2
L3
92
93
91
L1
L2
L3
92
93
99
95
96
97
98
88
89
81
82
U
V
W
DC-
DC+
R-
R+
130BA719.10
Illustration 9.28 Mains Connection Enclosures C4 (IP20).
9.3.1
Fuses and Circuit Breakers
9.3.1.1 Fuses
It is recommended to use fuses and/or circuit breakers on
the supply side as protection in case of component break-
down inside the frequency converter (first fault).
NOTICE
Using fuses and/or circuit breakers on the supply side is
mandatory to ensure compliance with IEC 60364 for CE
or NEC 2009 for UL.
Branch Circuit Protection
To protect the installation against electrical and fire hazard,
all branch circuits in an installation, switch gear, machines
etc., must be protected against short-circuit and over-
current according to national/international regulations.
NOTICE
The recommendations given do not cover branch circuit
protection for UL.
Short-circuit protection
Danfoss recommends using the fuses/circuit breakers
mentioned below to protect service personnel and
property in case of component break-down in the
frequency converter.
Electrical Installation
VLT
®
AutomationDrive FC 301/FC 302 Design Guide, 0.25-75 kW
122 MG33BF02 - Rev. 2013-12-20
99

Danfoss VLT AutomationDrive FC 301 Specifications

General

Brand	Danfoss
Model	VLT AutomationDrive FC 301
Category	DC Drives
Language	English