Circuit Breakers – Mouser United Kingdom

.hide-partial { max-height: none; } .show-more { display: none; }

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.

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 1,056

Applied Filters:

Series

Current Rating

Voltage Rating AC

Voltage Rating DC

Number of Poles

Minimum Operating Temperature

Maximum Operating Temperature

Illuminated

Packaging

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

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

3120-N321-P7T1-W16DT4-4A
E-T-A
1: £33.23
Non-Stocked Lead-Time 9 Weeks

Mfr. Part No.
3120-N321-P7T1-W16DT4-4A

Mouser Part No
457-321P7T1W16DT44A

E-T-A

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

£33.23

£28.31

£27.24

£25.66

View

Min.: 1
Mult.: 1

3120-N

Thermal Circuit Breaker

Overcurrent Protection

4 A

230 VAC

50 VDC

2 Pole

Rocker

- 30 C

+ 60 C

Illuminated

3120-N321-P7T1-W16DT4-8A
E-T-A
1: £33.23
Non-Stocked Lead-Time 9 Weeks

Mfr. Part No.
3120-N321-P7T1-W16DT4-8A

Mouser Part No
457-321P7T1W16DT48A

E-T-A

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

£33.23

£28.31

£27.24

£25.66

View

Min.: 1
Mult.: 1

3120-N

Thermal Circuit Breaker

Overcurrent Protection

8 A

230 VAC

50 VDC

2 Pole

Rocker

- 30 C

+ 60 C

Illuminated

3120-N321-P7T1-W16HT4-3A
E-T-A
1: £33.23
Non-Stocked Lead-Time 9 Weeks

Mfr. Part No.
3120-N321-P7T1-W16HT4-3A

Mouser Part No
457-321P7T1W16HT43A

E-T-A

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

£33.23

£28.31

£26.33

£24.05

£20.28

Min.: 1
Mult.: 1

3120-N

Thermal Circuit Breaker

Overcurrent Protection

3 A

230 VAC

50 VDC

2 Pole

Rocker

- 30 C

+ 60 C

Illuminated

3120-N321-P7T1-W16HT4-5A
E-T-A
1: £33.23
Non-Stocked Lead-Time 9 Weeks

Mfr. Part No.
3120-N321-P7T1-W16HT4-5A

Mouser Part No
457-321P7T1W16HT45A

E-T-A

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

£33.23

£28.31

£26.33

£24.05

£20.28

Min.: 1
Mult.: 1

3120-N

Thermal Circuit Breaker

Overcurrent Protection

5 A

230 VAC

50 VDC

2 Pole

Rocker

- 30 C

+ 60 C

Illuminated

3120-N321-P7T1-W16HT4-8A
E-T-A
1: £33.23
Non-Stocked Lead-Time 9 Weeks

Mfr. Part No.
3120-N321-P7T1-W16HT4-8A

Mouser Part No
457-321P7T1W16HT48A

E-T-A

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

£33.23

£28.31

£26.33

£24.05

£20.28

Min.: 1
Mult.: 1

3120-N

Thermal Circuit Breaker

Overcurrent Protection

8 A

230 VAC

50 VDC

2 Pole

Rocker

- 30 C

+ 60 C

Illuminated

3120-N321-P7T1-W19DG3-20A
E-T-A
1: £33.23
Non-Stocked Lead-Time 9 Weeks

Mfr. Part No.
3120-N321-P7T1-W19DG3-20A

Mouser Part No
457-321P7T1W19DG320A

E-T-A

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

£33.23

£28.31

£27.24

£25.66

View

Min.: 1
Mult.: 1

3120-N

Thermal Circuit Breaker

Overcurrent Protection

20 A

115 VAC

50 VDC

2 Pole

Rocker

- 30 C

+ 60 C

Illuminated

3120-N321-P7T1-W19DG4-2A
E-T-A
1: £43.27
Non-Stocked Lead-Time 9 Weeks

Mfr. Part No.
3120-N321-P7T1-W19DG4-2A

Mouser Part No
457-321P7T1W19DG42A

E-T-A

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

£43.27

£36.88

£35.23

£32.35

View

Min.: 1
Mult.: 1

3120-N

Thermal Circuit Breaker

Overcurrent Protection

2 A

230 VAC

50 VDC

2 Pole

Rocker

- 30 C

+ 60 C

Illuminated

3120-N321-P7T1-W19DG4-3A
E-T-A
1: £38.29
Non-Stocked Lead-Time 9 Weeks

Mfr. Part No.
3120-N321-P7T1-W19DG4-3A

Mouser Part No
457-321P7T1W19DG43A

E-T-A

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

£38.29

£31.77

£29.89

£25.66

View

Min.: 1
Mult.: 1

3120-N

Thermal Circuit Breaker

Overcurrent Protection

3 A

230 VAC

50 VDC

2 Pole

Rocker

- 30 C

+ 60 C

Illuminated

3120-N321-P7T1-W19DG4-6A
E-T-A
1: £33.23
Non-Stocked Lead-Time 9 Weeks

Mfr. Part No.
3120-N321-P7T1-W19DG4-6A

Mouser Part No
457-321P7T1W19DG46A

E-T-A

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

£33.23

£28.31

£27.24

£25.66

View

Min.: 1
Mult.: 1

3120-N

Thermal Circuit Breaker

Overcurrent Protection

6 A

230 VAC

50 VDC

2 Pole

Rocker

- 30 C

+ 60 C

Illuminated

3120-N321-P7T1-W19DG4-8A
E-T-A
1: £33.23
Non-Stocked Lead-Time 9 Weeks

Mfr. Part No.
3120-N321-P7T1-W19DG4-8A

Mouser Part No
457-321P7T1W19DG48A

E-T-A

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

£33.23

£28.31

£27.24

£25.66

View

Min.: 1
Mult.: 1

3120-N

Thermal Circuit Breaker

Overcurrent Protection

8 A

230 VAC

50 VDC

2 Pole

Rocker

- 30 C

+ 60 C

Illuminated

3120-N321-P7T1-W19FG3-2A
E-T-A
1: £43.27
Non-Stocked Lead-Time 9 Weeks

Mfr. Part No.
3120-N321-P7T1-W19FG3-2A

Mouser Part No
457-321P7T1W19FG32A

E-T-A

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

£43.27

£36.88

£35.23

£32.35

View

Min.: 1
Mult.: 1

3120-N

Thermal Circuit Breaker

Overcurrent Protection

2 A

115 VAC

50 VDC

2 Pole

Rocker

- 30 C

+ 60 C

Illuminated

3120-N321-P7T1-W19FG4-0.8A
E-T-A
1: £43.27
Non-Stocked Lead-Time 9 Weeks

Mfr. Part No.
3120-N321-P7T1-W19FG4-0.8A

Mouser Part No
457-321P7T1W19FG40.8

E-T-A

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

£43.27

£36.88

£34.11

£29.95

£26.81

Min.: 1
Mult.: 1

3120-N

Thermal Circuit Breaker

Overcurrent Protection

800 mA

230 VAC

50 VDC

2 Pole

Rocker

- 30 C

+ 60 C

Illuminated

Circuit Breakers Min Ord Qty 10. 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

3120-N321-P7T1-W19FG4-10A
E-T-A
1: £33.24
Non-Stocked Lead-Time 9 Weeks
New At Mouser

Mfr. Part No.
3120-N321-P7T1-W19FG4-10A

Mouser Part No
457-321P7T1W19FG410A

New At Mouser

E-T-A

Datasheet

Non-Stocked Lead-Time 9 Weeks

£33.24

£29.20

£25.28

£24.05

£20.28

Min.: 1
Mult.: 1

3120-N

Thermal Circuit Breaker

Overcurrent Protection

Rocker

3120-N321-P7T1-W19FG4-1A
E-T-A
1: £43.27
Non-Stocked Lead-Time 9 Weeks

Mfr. Part No.
3120-N321-P7T1-W19FG4-1A

Mouser Part No
457-321P7T1W19FG41A

E-T-A

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

£43.27

£36.88

£35.23

£32.35

View

Min.: 1
Mult.: 1

3120-N

Thermal Circuit Breaker

Overcurrent Protection

1 A

230 VAC

50 VDC

2 Pole

Rocker

- 30 C

+ 60 C

Illuminated

3120-N321-P7T1-W19FG4-2A
E-T-A
1: £43.27
Non-Stocked Lead-Time 9 Weeks

Mfr. Part No.
3120-N321-P7T1-W19FG4-2A

Mouser Part No
457-321P7T1W19FG42A

E-T-A

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

£43.27

£36.88

£35.23

£32.35

View

Min.: 1
Mult.: 1

3120-N

Thermal Circuit Breaker

Overcurrent Protection

2 A

230 VAC

50 VDC

2 Pole

Rocker

- 30 C

+ 60 C

Illuminated

3120-N321-P7T1-W19FG4-6A
E-T-A
1: £33.23
Non-Stocked Lead-Time 9 Weeks

Mfr. Part No.
3120-N321-P7T1-W19FG4-6A

Mouser Part No
457-321P7T1W19FG46A

E-T-A

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

£33.23

£28.31

£27.24

£25.66

View

Min.: 1
Mult.: 1

3120-N

Thermal Circuit Breaker

Overcurrent Protection

6 A

230 VAC

50 VDC

2 Pole

Rocker

- 30 C

+ 60 C

Illuminated

3120-N321-P7T1-W19FG4-8A
E-T-A
1: £33.23
Non-Stocked Lead-Time 9 Weeks

Mfr. Part No.
3120-N321-P7T1-W19FG4-8A

Mouser Part No
457-321P7T1W19FG48A

E-T-A

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

£33.23

£28.31

£27.24

£25.66

View

Min.: 1
Mult.: 1

3120-N

Thermal Circuit Breaker

Overcurrent Protection

8 A

230 VAC

50 VDC

2 Pole

Rocker

- 30 C

+ 60 C

Illuminated

3120-N321-P7T1-W19LG1-10A
E-T-A
1: £33.23
Non-Stocked Lead-Time 9 Weeks

Mfr. Part No.
3120-N321-P7T1-W19LG1-10A

Mouser Part No
457-321P7T1W19LG110A

E-T-A

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

£33.23

£28.31

£26.33

£24.05

£20.28

Min.: 1
Mult.: 1

3120-N

Thermal Circuit Breaker

Overcurrent Protection

10 A

240 VAC

12 VDC

2 Pole

Rocker

- 30 C

+ 60 C

Illuminated

3120-N321-P7T1-W19LG1-15A
E-T-A
1: £33.23
Non-Stocked Lead-Time 9 Weeks

Mfr. Part No.
3120-N321-P7T1-W19LG1-15A

Mouser Part No
457-321P7T1W19LG115A

E-T-A

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

£33.23

£28.31

£26.33

£24.05

£20.28

Min.: 1
Mult.: 1

3120-N

Thermal Circuit Breaker

Overcurrent Protection

15 A

240 VAC

12 VDC

2 Pole

Rocker

- 30 C

+ 60 C

Illuminated

3120-N321-P7T1-W19LG1-8A
E-T-A
1: £33.23
Non-Stocked Lead-Time 9 Weeks

Mfr. Part No.
3120-N321-P7T1-W19LG1-8A

Mouser Part No
457-321P7T1W19LG18A

E-T-A

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

£33.23

£28.31

£26.33

£24.05

£20.28

Min.: 1
Mult.: 1

3120-N

Thermal Circuit Breaker

Overcurrent Protection

8 A

240 VAC

12 VDC

2 Pole

Rocker

- 30 C

+ 60 C

Illuminated

3120-N321-P7T1-W19LG4-2A
E-T-A
1: £43.27
Non-Stocked Lead-Time 9 Weeks

Mfr. Part No.
3120-N321-P7T1-W19LG4-2A

Mouser Part No
457-321P7T1W19LG42A

E-T-A

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

£43.27

£36.88

£35.23

£32.35

View

Min.: 1
Mult.: 1

3120-N

Thermal Circuit Breaker

Overcurrent Protection

2 A

230 VAC

50 VDC

2 Pole

Rocker

- 30 C

+ 60 C

Illuminated

3120-N321-P7T1-W19LG4-3A
E-T-A
1: £30.42
Non-Stocked Lead-Time 9 Weeks

Mfr. Part No.
3120-N321-P7T1-W19LG4-3A

Mouser Part No
457-321P7T1W19LG43A

E-T-A

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

£30.42

£26.43

£25.84

£22.81

View

Min.: 1
Mult.: 1

3120-N

Thermal Circuit Breaker

Overcurrent Protection

3 A

230 VAC

50 VDC

2 Pole

Rocker

- 30 C

+ 60 C

Illuminated

3120-N321-P7T1-W19LG4-4A
E-T-A
1: £33.23
Non-Stocked Lead-Time 9 Weeks

Mfr. Part No.
3120-N321-P7T1-W19LG4-4A

Mouser Part No
457-321P7T1W19LG44A

E-T-A

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

£33.23

£28.31

£27.24

£25.66

View

Min.: 1
Mult.: 1

3120-N

Thermal Circuit Breaker

Overcurrent Protection

4 A

230 VAC

50 VDC

2 Pole

Rocker

- 30 C

+ 60 C

Illuminated

3120-N321-P7T1-W19LG4-5A
E-T-A
1: £33.23
Non-Stocked Lead-Time 9 Weeks

Mfr. Part No.
3120-N321-P7T1-W19LG4-5A

Mouser Part No
457-321P7T1W19LG45A

E-T-A

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

£33.23

£28.31

£27.24

£25.66

View

Min.: 1
Mult.: 1

3120-N

Thermal Circuit Breaker

Overcurrent Protection

5 A

230 VAC

50 VDC

2 Pole

Rocker

- 30 C

+ 60 C

Illuminated

3120-N321-P7T1-W19LG4-6A
E-T-A
1: £33.23
Non-Stocked Lead-Time 9 Weeks

Mfr. Part No.
3120-N321-P7T1-W19LG4-6A

Mouser Part No
457-321P7T1W19LG46A

E-T-A

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

£33.23

£28.31

£27.24

£25.66

View

Min.: 1
Mult.: 1

3120-N

Thermal Circuit Breaker

Overcurrent Protection

6 A

230 VAC

50 VDC

2 Pole

Rocker

- 30 C

+ 60 C

Illuminated

3120-N Next-Generation Circuit Breaker/Switch

Customer Service Office

Company

Resources

Support

100 mA
200 mA
300 mA
500 mA
600 mA
700 mA
800 mA
1 A
1.2 A
1.5 A
1.8 A
2 A
2.5 A
3 A
3.5 A
4 A
4.5 A
5 A
6 A
7 A