Ac Mains Voltage Compatibility; Mechanical Brake Control And Supply - Danfoss FCD300 Service Manual

19.2. AC mains Voltage Compatibility

The units are designed to operate under applicable NEC standards (Star and Delta
connections), also on IT, TT, TN-S, TN-C-S, and TN-C ACe mains (the different AC mains
are described in VDE 0100).
The units are designed to observe UL 508C by recommending using fuses similar to
Bussmann KTS-R.
NB: Test with "Branch Circuit Fuses" has been performed on FCD 330, with satisfactory
result. This means that it is allowed to sell the units without any demands regarding specific
type of pre-fuse. (Regarding UL)
Circuit Breaker
CTI25MB from Danfoss or similar should be used to full fill UL.

19.3. Mechanical brake control and supply

Output voltage: 45% of the line voltage (single rectified mains supply).
Max. continuous output current: 0,8 A.
Overload protection level: approx. 1,4 A.
Max. switching frequency: depending on brake size, see below.
WARNING: the circuit is only protected against overload or short circuit between
the terminals. It is NOT protected against overload or short circuit from any of the
terminals to earth.
Release 01/2003
Revise 08/01/2003 by DD Service Manager, Steffen Sundbæk
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