Stober SC6 Series Commissioning Instructions

STÖBER 7 | Connection
11/2017 | ID 442793.00
33
7.3.1.2 Line fuse in parallel operation
Every drive controller connected to the grid in the DC circuit group must be protected at the line
input against overload and short circuit. To do this, a fuse combination consisting of overload
protection and solid state short circuit protection is connected in series. A miniature circuit
breaker protects against overload and a safety fuse with gR triggering characteristics protects
against short circuit.
Information
The installation of short-circuit fuses is not necessary under ideal prerequisites and ambient
conditions. However, if the application conditions pose the risk of contaminating the drive
controllers, short-circuit fuses can protect against damage to or failure of other devices within
the DC link group.
Information
To ensure problem-free operation, always comply with the recommended trigger limits and
trigger characteristics of the fuse elements.
Information
Note that the charge current after switching on the power supply is less than the nominal input
current of the power unit I
1N,PU
.
Size Type I
1N,PU
(4kHz)
[A]
I
1maxPU
(4 kHz)
[A]
Fuse selection
Miniature circuit
breakers
Safety fuse
0 SC6A062 10 21A EATON
Type: FAZ-Z10/3,
Item No.: 278926
Triggering
characteristics: Z10A
SIBA
Type: URZ,
Item No. 50 140 06.25
Triggering
characteristics: gR25A
1 SC6A162 23,2 48.7A EATON
Type: FAZ-Z25/3,
Item No.: 278929
Triggering
characteristics: Z25A
SIBA
Type: URZ,
Item No. 50 140 06.50
Triggering
characteristics: gR50A
2 SC6A261 22,6 47.4A EATON
Type: FAZ-Z25/3,
Item No.: 278929
Triggering
characteristics: Z25A
SIBA
Type: URZ,
Item No. 50 140 06.50
Triggering
characteristics: gR50A
Tab. 23: Recommended line fuse in parallel operation

Stober SC6 Series Specifications

General

Brand	Stober
Model	SC6 Series
Category	Controller
Language	English