(Red) –
+
T/C
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16
OUT 1
Power Input
Cooling
Device
2A/
240VAC
Max
OUT 2
ALM 1
Load
3A/240VAC
Max. for Relay.
1A for Triac.
Alarm
3A/240VAC max
Hot
Fuse
Neutral
(Red) –
+
T/C
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16
OUT 1
Power Input
ALM 2
ALM 1
o
o
o
o
o
o
o
o
o
Coil
Three Phase
Heaters
Heater
Fuses
Three
Phase
Power
Fuse
Alarms 1 & 2 - 3 A/240VAC max
Hot
Neutral
Alarm 2
Alarm 1
Three Pole DP
Magnetic
Contactor
Figure 4.6
Example of wiring connections for
ETR-9200-1221 Heating and
Cooling with alarm
Figure 4.7
Example of wiring connections for
ETR-9200-1221 with three phase
Delta heater load
NOTE: The use of motor starters in place of magnetic contactors should be avoided.
They have very large inductive loads that can damage the controller’s relay.
12 13 14
A
B
B
3-Wire
RTD Connection
12 13 14
A
B
B
3-Wire
RTD Connection