300 mA Circuit Breakers & Accessories

Types of Circuit Breakers & Accessories

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Results: 138
Select Image Part # Mfr. Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity. Qty. RoHS
E-T-A Circuit Breakers ETA Circuit Breakers 9In Stock
Min.: 1
Mult.: 1



E-T-A Circuit Breakers Single pole thermal circuit breakers with push-to-reset, tease-free, trip-free, snap action mechanism (R type TO CBE to EN 60934). Featuring auxiliary contacts (1 x N/C; 1 x N/O) as standard. Options include an additional unprotected 4In Stock
Min.: 1
Mult.: 1
E-T-A Circuit Breakers Single pole thermal circuit breakers with push-to-reset, tease-free, trip-free, snap action mechanism (R type TO CBE to EN 60934). Featuring auxiliary contacts (1 x N/C; 1 x N/O) as standard. Options include an additional unprotected 5In Stock
Min.: 1
Mult.: 1

AIRPAX Circuit Breakers Cir Brkr Hyd Mag 2In Stock
Min.: 1
Mult.: 1


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 5In Stock
Min.: 1
Mult.: 1
E-T-A Circuit Breakers Miniaturised single pole thermal circuit breaker with push-to-reset tease free, trip-free, snap action mechanism (R-type TO CBE to EN 60934) for PCB mounting. Approved to CBE standard EN 60934 (IEC 60934). For higher current ratings 9In Stock
Min.: 1
Mult.: 1



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 4In Stock
Min.: 1
Mult.: 1
E-T-A Circuit Breakers Miniaturised single pole thermal circuit breaker with push-to-reset tease free, trip-free, snap action mechanism (R-type TO CBE to EN 60934), threadneck mounting. Approved to CBE standard EN 60934 (IEC 60934). For higher current rati 64In Stock
Min.: 1
Mult.: 1

E-T-A Circuit Breakers Single pole thermal circuit breakers with push-to-reset, tease-free, trip-free, snap action mechanism (R type TO CBE to EN 60934). Featuring auxiliary contacts (1 x N/C; 1 x N/O) as standard. Options include an additional unprotected 10In Stock
Min.: 1
Mult.: 1
E-T-A Circuit Breakers Single pole thermal circuit breaker with press-to-reset, tease-free, trip-free, snap action mechanism. Type 2-5700 can be supplied as a push-push switch/circuit breaker (R-type TO CBE to EN 60934 in press-to-reset configuration; S-typ 3In Stock
Min.: 1
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Siemens Circuit Breakers MCB 5SJ4 1P 277V 0.3A 10K C-TRIP 1In Stock
Min.: 1
Mult.: 1
Altech Circuit Breakers .3A MCB CChar 1pl 277VAC UL508 2In Stock
Min.: 1
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Altech Circuit Breakers 0.3A, D CHAR, 2POLE 480Y/277VAC,UL489 6In Stock
Min.: 1
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Altech Circuit Breakers 1C03UL, 0.3A, CIRCUIT BREAKER
6Expected 11/10/2026
Min.: 1
Mult.: 1
ABB Circuit Breakers UL489 MCB 2P K 0.3A 480/277
5On Order
Min.: 1
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Altech Circuit Breakers 0.3A, D CHAR, 1POLE 277VAC, UL489 10Factory Stock Available
Min.: 1
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Altech Circuit Breakers .3A MCB DCHAR 1pl 277VAC UL508 21Factory Stock Available
Min.: 1
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Altech Circuit Breakers .3A CRT BRKR ECHAR 277VAC UL508 11Factory Stock Available
Min.: 1
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Altech Circuit Breakers .3A G Characteristic UL 508 1 POLE 14Factory Stock Available
Min.: 1
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Altech Circuit Breakers .3A Z Characteristic UL 508 1 POLE 8Factory Stock Available
Min.: 1
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Altech Circuit Breakers 0.3A, C CHAR, 2POLE 480Y/277VAC,UL489 25Factory Stock Available
Min.: 1
Mult.: 1

Altech Circuit Breakers .3A CRT BRKR ECHAR 277VAC UL508 1Factory Stock Available
Min.: 1
Mult.: 1

Altech Circuit Breakers .3A MCB ZCHAR 1P+N 277VAC UL508 3Factory Stock Available
Min.: 1
Mult.: 1

Altech Circuit Breakers 3D03UM, 0.3A, CIRCUIT BREAKER 1Factory Stock Available
Min.: 1
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Altech Circuit Breakers .3A G Characteristic UL 508 3 POLE 3Factory Stock Available
Min.: 1
Mult.: 1