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11.4.2.2
Main circuit
Technical data for the main circuit, 3RB303./3RB313. overload relays
Insulation
voltage
with
degree of
pollution 3
rated value
V
3RB3.3.-.QB.
690
3RB3.3.-.QD.
690
3RB3.3.-.QW.
690
3RB3.3.-.QX.
690
3RB3.3.-.UB.
690
3RB3.3.-.UD.
690
3RB3.3.-.UW.
690
3RB3.3.-.UX.
690
3RB3.3.-.WB.
690
3RB3.3.-.WD.
690
3RB3.3.-.WW.
690
3RB3.3.-.WX.
690
SIRIUS Innovations - SIRIUS 3RU2 thermal overload relays / SIRIUS 3RB3 solid-state overload relays
Manual, 09/2014, A5E03656507420A/RS-AA/002
Impulse
Voltage
Type of
voltage
type for
assignement
resistance
main
rated
circuit
value
V
6 000
AC
2
6 000
AC
2
6 000
AC
2
6 000
AC
2
6 000
AC
2
6 000
AC
2
6 000
AC
2
6 000
AC
2
6 000
AC
2
6 000
AC
2
6 000
AC
2
6 000
AC
2
11.4 3RB30/3RB31 solid-state overload relays
Design of the fuse
Operational current
link for short-circuit
for heavy
protection of the
starting
main circuit
CLASS 20
necessary
maximum
A
fuse gL/gG: 160 A
25
fuse gL/gG: 160 A
25
fuse gL/gG: 160 A
25
fuse gL/gG: 160 A
25
Fuse gL/gG: 200 A
50
Fuse gL/gG: 200 A
50
Fuse gL/gG: 200 A
50
Fuse gL/gG: 200 A
50
fuse gL/gG: 250 A
60
fuse gL/gG: 250 A
60
fuse gL/gG: 250 A
80
fuse gL/gG: 250 A
80
Technical data
for heavy
starting
CLASS 30
maximum
A
25
25
25
25
50
50
50
50
50
50
80
80
133
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