3120-N Next-Generation Circuit Breaker/Switch

E-T-A Circuit Breakers 3120-N Next-Generation Circuit Breaker/Switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. 3120-N Next-Generation Circuit Breaker/Switch, which replaces the 3120-F series, is ideally suited for overload protection of motors, pumps, transformers, and cables. After tripping, the device can reliably, easily, and quickly be reset. The positively trip-free mechanism ensures reliable circuit disconnection even with the actuator blocked.

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Current Rating
Voltage Rating AC
Voltage Rating DC
Number of Poles
Actuator Type
Minimum Operating Temperature
Maximum Operating Temperature
Illuminated
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E-T-A Circuit Breakers The 3120-N thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N is ideally suited for overload protection of motors
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

3120-N Thermal Circuit Breaker Overcurrent Protection 10 A 240 VAC 24 VDC 1 Pole Rocker - 30 C + 60 C Illuminated
E-T-A Circuit Breakers The 3120-N thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N is ideally suited for overload prot
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

3120-N Thermal Circuit Breaker Overcurrent Protection 20 A 230 VAC 50 VDC 2 Pole Rocker - 30 C + 60 C Illuminated
E-T-A Circuit Breakers The 3120-N thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N is ideally suited for overload protection of motors
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1
3120-N Thermal Circuit Breaker Overcurrent Protection 15 A 240 VAC 50 VDC 2 Pole Rocker - 30 C + 60 C Illuminated
E-T-A Circuit Breakers The 3120-N thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N is ideally suited for overload prot
Datasheet
30Expected 15/04/2026
Min.: 1
Mult.: 1
3120-N Thermal Circuit Breaker Overcurrent Protection 5 A 240 VAC 50 VDC 2 Pole Rocker - 30 C + 60 C Non-Illuminated
E-T-A Circuit Breakers The 3120-N thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N is ideally suited for overload prot
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

3120-N Thermal Circuit Breaker Overcurrent Protection 6 A 240 VAC 50 VDC 2 Pole Rocker - 30 C + 60 C Non-Illuminated
E-T-A Circuit Breakers The 3120-N thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N is ideally suited for overload prot
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

3120-N Thermal Circuit Breaker Overcurrent Protection 20 A 230 VAC 50 VDC 2 Pole Rocker - 30 C + 60 C Illuminated

E-T-A Circuit Breakers The 3120-N...4 IP65 rated thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N...4 is ideally suite
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1
3120-N Thermal Circuit Breaker Overcurrent Protection 16 A 115 VAC 50 VDC 2 Pole Rocker - 30 C + 60 C Illuminated
E-T-A Circuit Breakers N...4 IP65 rated thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N...4 is ideally suited for overload protection
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

3120-N Thermal Circuit Breaker Overcurrent Protection Rocker
E-T-A Circuit Breakers The 3120-N thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N is ideally suited for overload pro
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

3120-N Thermal Circuit Breaker Overcurrent Protection 20 A 240 VAC 50 VDC 2 Pole Rocker - 30 C + 60 C Non-Illuminated
E-T-A Circuit Breakers The 3120-N thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N is ideally suited for overload prot
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

3120-N Thermal Circuit Breaker Overcurrent Protection 12 A 240 VAC 50 VDC 1 Pole Rocker - 30 C + 60 C Non-Illuminated
E-T-A Circuit Breakers The 3120-N thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N is ideally suited for overload prot
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

3120-N Thermal Circuit Breaker Overcurrent Protection 10 A 240 VAC 50 VDC 1 Pole Rocker - 30 C + 60 C Non-Illuminated
E-T-A Circuit Breakers The 3120-N thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N is ideally suited for overload prot
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

3120-N Thermal Circuit Breaker Overcurrent Protection 10 A 240 VAC 50 VDC 1 Pole Rocker - 30 C + 60 C Non-Illuminated
E-T-A Circuit Breakers The 3120-N thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N is ideally suited for overload prot
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

3120-N Thermal Circuit Breaker Overcurrent Protection 2 A 240 VAC 50 VDC 1 Pole Rocker - 30 C + 60 C Non-Illuminated
E-T-A Circuit Breakers The 3120-N thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N is ideally suited for overload prot
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

3120-N Thermal Circuit Breaker Overcurrent Protection 4 A 240 VAC 50 VDC 1 Pole Rocker - 30 C + 60 C Non-Illuminated
E-T-A Circuit Breakers The 3120-N thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N is ideally suited for overload prot
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

3120-N Thermal Circuit Breaker Overcurrent Protection 20 A 240 VAC 50 VDC 1 Pole Rocker - 30 C + 60 C Non-Illuminated
E-T-A Circuit Breakers The 3120-N thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N is ideally suited for overload prot
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

3120-N Thermal Circuit Breaker Overcurrent Protection 20 A 240 VAC 50 VDC 1 Pole Rocker - 30 C + 60 C Non-Illuminated
E-T-A Circuit Breakers The 3120-N thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N is ideally suited for overload prot
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

3120-N Thermal Circuit Breaker Overcurrent Protection 2 A 240 VAC 50 VDC 1 Pole Rocker - 30 C + 60 C Non-Illuminated
E-T-A Circuit Breakers The 3120-N thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N is ideally suited for overload prot
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

3120-N Thermal Circuit Breaker Overcurrent Protection 3.5 A 240 VAC 50 VDC 1 Pole Rocker - 30 C + 60 C Non-Illuminated
E-T-A Circuit Breakers The 3120-N thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N is ideally suited for overload prot
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

3120-N Thermal Circuit Breaker Overcurrent Protection 3 A 240 VAC 50 VDC 1 Pole Rocker - 30 C + 60 C Non-Illuminated
E-T-A Circuit Breakers The 3120-N thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N is ideally suited for overload prot
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

3120-N Thermal Circuit Breaker Overcurrent Protection 4 A 240 VAC 50 VDC 1 Pole Rocker - 30 C + 60 C Non-Illuminated
E-T-A Circuit Breakers The 3120-N thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N is ideally suited for overload prot
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

3120-N Thermal Circuit Breaker Overcurrent Protection 5 A 240 VAC 50 VDC 1 Pole Rocker - 30 C + 60 C Non-Illuminated
E-T-A Circuit Breakers The 3120-N thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N is ideally suited for overload prot
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

3120-N Thermal Circuit Breaker Overcurrent Protection 8 A 240 VAC 50 VDC 1 Pole Rocker - 30 C + 60 C Non-Illuminated
E-T-A Circuit Breakers The 3120-N thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N is ideally suited for overload prot
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

3120-N Thermal Circuit Breaker Overcurrent Protection 15 A 240 VAC 50 VDC 1 Pole Rocker - 30 C + 60 C Non-Illuminated
E-T-A Circuit Breakers The 3120-N thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N is ideally suited for overload prot
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

3120-N Thermal Circuit Breaker Overcurrent Protection 5 A 240 VAC 50 VDC 1 Pole Rocker - 30 C + 60 C Non-Illuminated
E-T-A Circuit Breakers The 3120-N thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N is ideally suited for overload prot
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

3120-N Thermal Circuit Breaker Overcurrent Protection 6 A 240 VAC 50 VDC 1 Pole Rocker - 30 C + 60 C Non-Illuminated