Fuses And Circuit Breakers - Danfoss VLT AQUA Drive FC 202 Design Manual

Specifications
Control card performance
Scan interval
Control card, USB serial communication
USB standard
USB plug
CAUTION
Connection to a PC is carried out via a standard host/device USB cable.
The USB connection is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
The USB connection is not galvanically isolated from protective ground. Use only an isolated laptop/PC as a connection
to the USB connector on the adjustable frequency drive, or an isolated USB cable/drive.

7.7 Fuses and Circuit Breakers

Use recommended fuses and/or circuit breakers on the supply side as protection in case of component breakdown inside
7 7
the adjustable frequency drive (first fault).
NOTICE!
Use of fuses on the supply side is mandatory for IEC 60364 (CE) and NEC 2009 (UL) compliant installations.
Recommendations:
•
gG type fuses.
•
Moeller type circuit breakers. For other circuit breaker types, ensure that the energy into the adjustable frequency
drive is equal to or lower than the energy provided by Moeller types.
Use of recommended fuses and circuit breakers ensures that possible damage to the adjustable frequency drive is limited to
damages inside the unit. For further information, see Application Note Fuses and Circuit Breakers.
The fuses below are suitable for use on a circuit capable of delivering 100000 A
adjustable frequency drive voltage rating. With the proper fusing, the adjustable frequency drive short-circuit current rating
(SCCR) is 100000 A
170
®
VLT
.
rms
Danfoss A/S © 09/2014 All rights reserved.
AQUA Drive FC 202
USB type B "device" plug
(symmetrical), depending on the
rms
5 ms
1.1 (full speed)
MG20N622