1 2 3 4 5 6
8 9 10 11
1
2
3
4
5
6
10
9
8
7
CR1
Delta
Connected
Heater
N
Wye
Connected
Heater
T3
T2
T1
4-Wire Wye
Connected Heater
T3
T2
T1
Input
120V
Å
Breaker
L3
240V
Å
L2
L1
240V
Å
Control
Thermocouple
120V
Å
Series SD
SD3_-_K_ _-_ _RG
Fuse
Fuse
Series LV
LVC6KW-4542500A
CR1
Coil
Reset
E-SAFE
®
II
Hybrid Power
Switch
ES2X-2XX0-0000
A1 A2
T1
2
T2
4
T3
6
L1
1
L2
3
L3
5
7
Fuse
Fuse
Fuse
Fuse
High Limit
Thermocouple
1 2 3 4 5 6
8 9 10 11
1
2
3
4
5
6
10
9
8
7
CR1
4-Wire Wye
Connected Heater
Input
120V
Å
Breaker
L3
480V
Å
L2
L1
480V
Å
Control
Thermocouple
120V
Å
Series SD
SD3_-_K_ _-_ _RG
Fuse
Fuse
Series LV
LVC6KW-4542500A
CR1
Coil
Reset
E-SAFE
®
II
Hybrid Power
Switch
ES2X-3XX0-0000
A1 A2
T1
2
T2
4
T3
6
L1
1
L2
3
L3
5
7
Fuse
Fuse
Fuse
Fuse
Neutral
High Limit
Thermocouple
1 2 3 4 5 6
8 9 10 11
1
2
3
4
5
6
10
9
8
7
CR1
Input
120V
Å
Breaker
120V
Å
L1
N
Control
Thermocouple
Series SD
SD3_-_K_ _-_ _RG
Fuse
Fuse
Series LV
LVC6KW-4542500A
CR1
Coil
Reset
E-SAFE
®
II
Hybrid Power
Switch
ES21-1HV0-0000
A1 A2
T1
2
T2
4
T3
6
L1
1
L2
3
L3
5
7
Fuse
Fuse
High Limit
Thermocouple
System Wiring Example
120 volt, single-phase, 1
pole with ac input control
1 2 3 4 5 6
8 9 10 11
1
2
3
4
5
6
10
9
8
7
CR1
Input
120V
Å
Breaker
240V
Å
L2
L1
240V
Å
Control
Thermocouple
120V
Å
Series SD
SD3_-_K_ _-_ _RG
Fuse
Fuse
Series LV
LVC6KW-4542500A
CR1
Coil
Reset
E-SAFE
®
II
Hybrid Power
Switch
ES22-2HV0-0000
A1 A2
T1
2
T2
4
T3
6
L1
1
L2
3
L3
5
7
Fuse
Fuse
Fuse
Fuse
High Limit
Thermocouple
System Wiring Example
240 volt, single-phase, 2
pole with ac input control
System Wiring Example
240 volt, 3-phase, 3 pole
with ac input control
Note:
ES2X-2XX0-0000 is powered via L1, L2
System Wiring Example
277/480 volt, 3-phase, 3
pole with ac input control, 4-wire Wye connected
heater only
Note:
ES2X-3XX0-0000 is powered via terminal (7) and L1
∫
WARNING:
Only authorized and qualified personnel should install and service the E-SAFE II Hybrid Power Switch. Failure to comply with these recom-
mendations may result in damage to equipment and property and injury to personnel.
Torque Guidelines:
Properly torque line and load terminals to 2.25 nm (20 in-lbs).
ç
∫
WARNING:
Wiring must conform to National Electric Code (NEC) safety standards, as well as locally applicable codes. Failure to do so could result in
personal injury or loss of life. See the product rating curve for wire gauge selection, ambient temperature and current restrictions.
NOTE:
Do not use an RC snubber on the temperature control command signal output. The leakage current through
a snubber circuit can turn the E-SAFE II relay on, even when the command signal is off.
Snubbers
Snubbers
Snubbers
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