Description Of Device; Overload Protection Relays With Bimetallic Release - Eaton ZE serie Handbuch

1.3 Description of device

1.3.1 Overload protection relays with bimetallic release

The ZE/XTOM overload relays are 3 pole electromechanical overload relays
using bimetallic elements. They are suitable both for AC and for DC
operation.
Type ZE/XTOM overload relays can be fitted directly on to DILEEM and
DILEM (XTMC...) contactors.
Table 1: Direct mounting
Overload relay
ZE... XTOM...
In the event of an overload trip, auxiliary contacts 95-96 and 97-98 switch and
interrupt the control circuit of the relevant contactor. In this way, they
indirectly disconnect the power flow of the monitored motor (a following
Abb. 2).
L1 L2 L3
F1
1 3 5
Q11
2 4 6
F2
2 4 6
U V W PE
M
3~
M1
Figure 2: Circuit diagram of a motor connection with a ZE/XTOM overload relay
F1 Fuse
F2 Overload relay
Q11 Motor contactor
M1 Motor
ZE/XTOM 11/17 MN03407003Z-DE/EN www.eaton.com
Contactor
DILEEM XTMC6
DILEM XTMC9
DILEM12 XTMC12
L1
(Q11/1)
-F0
95
-F2
96
21
0
22
-S11
13
I
14
97 95
97 96
14
-Q11
13
A1
-Q11
A2
N
1 ZE/XTOM overload relays
1.3 Description of device
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