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XtrapulsCD1-a
Chapter 4 - Connections
3 - REQUIREMENTS OF COMPLIANCE WITH THE UL STANDARDS
This UL listing requires some conditions to be fulfilled by the installer of the drives.
3.1 - CONNECTION BY MEANS OF FASTON SOCKET
The installer must use a UL listed quick connect for ground connections (0.250 inches or 6.35 mm wide nominal)
on all drives equipped with FASTON sockets.
On drives equipped with a screwed ground connector, the connection must be made via UL listed sockets.
3.2 - 24 V SUPPLY
The end user has to provide a 24 VDC isolated power supply (e.g. with isolation transformer) for the auxiliary
supply input, protected by a 4 A UL listed fuse.
3.3 - POWER SUPPLY AND UL FUSE RATINGS
The fuse type recommended for motor applications is class RK5. The maximum short-circuit power of the mains
must not exceed 5000 Arms at a voltage of 480 V, when protected by a UL fuse of type RK5 and A60Q40 for
400/70 and 400/90 ratings.
On XtrapulsCD1a-400/I drives, the fuse ratings must be the following:
CD1-a
400/1.8 to 7.2
400/14
400/30 and 45
400/70 and 90
BUSSMANN
Classe RK5
Type FRS-R
FRS-R-4
FRS-R-8
FRS-R-20
FERRAZ
A60Q40
LITTELFUSE
Classe RK5
Type FLSR-ID
FLSR2ID
FLSR8ID
FLSR20ID
FERRAZ
A60Q40
On XtrapulsCD1a-230/I drives, the fuse ratings must be the following:
CD1-a
230/2.25 to 10.5
230/16.5
BUSSMANN
Class RK5
Type FRN-R
FRN-R-6
FRN-R-9
LITTELFUSE
Class RK5
Type FLNR-ID
FLNR6ID
FLNR9ID
