Data Sheet - Electrical Connection
F-2
WILO EMU 3.0
When used in Ex-protected
areas
The temperature monitoring system should be connected in such a manner that if the early warning
is triggered an automatic switch on can be performed. If a switch off is triggered then switching on
again should only be possible if the release button has been manually activated!
Wire designation of the
connection lead
1
designation
2
core
3
main cable
4
control cable
5
electrode cable
6
green-yellow
7
blue
8
black
9
brown
10 protective conductor
11 motor connection cable
12 motor connection cable beginning
13 motor connection cable end
14 motor connection cable low speed
15 motor connection cable high speed
16 cold type thermistor as per DIN 44081
17 cold type thermistor beginning
18 cold type thermistor high temperature per DIN 44081
19 cold type thermistor low temperature as per DIN 44081
20 bimetallic thermistor (break contact) 250V 2A cos j = 1
21 bimetallic thermistor beginning
22 bimetallic thermistor high temperature (break contact)
23 bimetallic thermistor low temperature (break contact)
24 temperature control Pt 100 beginning as per DIN 43760 B
Leak chamber
monitoring
K20/21
Coupling relay
(CM-MSS or NIV
101)
-
Warning or switch
off
Protection device provided by customer
Bimetal relay / motor
protection switch
-
-
Rated motor
current
Switch off
Dry-run protection
with float
-
-
-
Switch off
Dry-run protection
with electrode
-
NIV 105
30 KOhm
Switch off
Monitoring device
Wire
identificat
ion
Recommended
analyzing
device
Threshold
Triggered
condition
Table F-1: * Limit temperature: insulation class F = 140°, insulation class H = 160°, for oil motors = 110°,
PVC wire = 80°, PE2 wire = 90°
