Short-circuit protection of the
overload relay
37
09/15 MN03407003Z-DE/EN
Short-circuit protection of
the overload relay
The short-circuit protection of the ZE/XTOM overload relay
can be partially implemented either with or without a fuse.
The type of coordination is related to the type of DILEEM or
DILEM/XTMC contactor that is used (
a
Table 2:
Overview of short-circuit protection with ZE/XTOM
relays
1) According to IEC/EN 60947
i
Warning!
According to EN 60947-4-1 only type of coordination “2”
may be used for the protection of EEx e motors.
Type
Short-circuit
current
rating I
q
With fusing
Type of coordination
„1“
1)
„2“
1)
kA
A gG/gL
A gG/gL
ZE-0.16
XTOMP16AC1
100
20
0.5
ZE-0.24
XTOMP24AC1
100
20
1
ZE-0.4
XTOMP40AC1
100
20
2
ZE-0.6
XTOMP60AC1
100
20
2
ZE-1.0
XTOM001AC1
100
20
4
ZE-1.6
XTOM1P6AC1
100
20
6
ZE-2.4
XTOM2P4AC1
100
20
6
ZE-4
XTOM004AC1
100
35
20
ZE-6
XTOM006AC1
100
35
20
ZE-9
XTOM009AC1
100
35
20
ZE-12
XTOM012AC1
100
35
20
