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Circuit Protection

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.
Circuit Breakers 20A, D CHAR, 1POLE 277VAC, UL489 1D20UL Altech 1: $45.74 4In Stock	Mfr. Part No. 1D20UL Mouser Part No 845-1D20UL	Altech	Circuit Breakers 20A, D CHAR, 1POLE 277VAC, UL489 Learn More about Altech ulac dldc circuit breakers	Datasheet	4In Stock	$45.74 $39.29 $34.84 $32.16 View $30.40 $29.80	Min.: 1 Mult.: 1
Circuit Breakers 20A D Characteristic UL 508 1 POLE 1D20UM Altech 1: $34.03 8In Stock	Mfr. Part No. 1D20UM Mouser Part No 845-1D20UM	Altech	Circuit Breakers 20A D Characteristic UL 508 1 POLE Learn More about Altech um v ea circuit breakers	Datasheet	8In Stock	$34.03 $31.31 $23.79 $23.06 View $22.22 $21.60 $21.18 Quote	Min.: 1 Mult.: 1
Circuit Breakers 20A,MCB D CHAR 1 PL, 277VAC, UL1077 1D20UR Altech 1: $25.47 18In Stock	Mfr. Part No. 1D20UR Mouser Part No 845-1D20UR	Altech	Circuit Breakers 20A,MCB D CHAR 1 PL, 277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	18In Stock	$25.47 $21.42 $21.40 $17.04 View $16.34 $15.68 $15.26 Quote	Min.: 1 Mult.: 1
Circuit Breakers 2A, D CHAR, 1POLE 277VAC, UL489 1D2UL Altech 1: $40.81 5In Stock	Mfr. Part No. 1D2UL Mouser Part No 845-1D2UL	Altech	Circuit Breakers 2A, D CHAR, 1POLE 277VAC, UL489 Learn More about Altech ulac dldc circuit breakers	Datasheet	5In Stock	$40.81 $36.58 $32.98 $31.30 View $30.52 $29.55 Quote	Min.: 1 Mult.: 1
Circuit Breakers 2A D Characteristic UL 508 1 POLE 1D2UM Altech 1: $23.79 1In Stock	Mfr. Part No. 1D2UM Mouser Part No 845-1D2UM	Altech	Circuit Breakers 2A D Characteristic UL 508 1 POLE Learn More about Altech um v ea circuit breakers	Datasheet	1In Stock	$23.79 $23.54 $21.98 $21.18 View $20.59 $20.12 Quote	Min.: 1 Mult.: 1
Circuit Breakers 30A D Characteristic UL 508 1 POLE 1D30UM Altech 1: $23.79 4In Stock	Mfr. Part No. 1D30UM Mouser Part No 845-1D30UM	Altech	Circuit Breakers 30A D Characteristic UL 508 1 POLE Learn More about Altech um v ea circuit breakers	Datasheet	4In Stock	$23.79 $22.61 $21.57 $20.60 View $20.10 Quote	Min.: 1 Mult.: 1
Circuit Breakers 4A,MCB D CHAR 1 PL, 277VAC, UL1077 1D4UR Altech 1: $27.97 6In Stock	Mfr. Part No. 1D4UR Mouser Part No 845-1D4UR	Altech	Circuit Breakers 4A,MCB D CHAR 1 PL, 277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	6In Stock	$27.97 $23.20 $19.26 $17.53 View $16.90 $16.35 $15.98 Quote	Min.: 1 Mult.: 1
Circuit Breakers 5A D Characteristic UL 508 1 POLE 1D5UM Altech 1: $34.15 1In Stock 33Expected 2026/11/03	Mfr. Part No. 1D5UM Mouser Part No 845-1D5UM	Altech	Circuit Breakers 5A D Characteristic UL 508 1 POLE Learn More about Altech um v ea circuit breakers	Datasheet	1In Stock 33Expected 2026/11/03	$34.15 $23.79 $23.73 $22.10 View $21.25 $20.61 $20.13 Quote	Min.: 1 Mult.: 1
Circuit Breakers 63A, D CHAR, 1POLE 240VAC, UL489 1D63UL Altech 1: $35.70 5In Stock	Mfr. Part No. 1D63UL Mouser Part No 845-1D63UL	Altech	Circuit Breakers 63A, D CHAR, 1POLE 240VAC, UL489 Learn More about Altech ulac dldc circuit breakers	Datasheet	5In Stock	$35.70 $35.53 $34.61 $33.68 View Quote	Min.: 1 Mult.: 1
Circuit Breakers 8A,MCB D CHAR 1 PL, 277VAC, UL1077 1D8UR Altech 1: $27.97 2In Stock	Mfr. Part No. 1D8UR Mouser Part No 845-1D8UR	Altech	Circuit Breakers 8A,MCB D CHAR 1 PL, 277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	2In Stock	$27.97 $17.79 $15.90 $15.19 View $15.07 $14.91 Quote	Min.: 1 Mult.: 1
Circuit Breakers 10A CRT BRKR ECHAR 277VAC UL508 1E10UM Altech 1: $23.79 10In Stock	Mfr. Part No. 1E10UM Mouser Part No 845-1E10UM	Altech	Circuit Breakers 10A CRT BRKR ECHAR 277VAC UL508 Learn More about Altech um v ea circuit breakers	Datasheet	10In Stock	$23.79 $23.12 $22.25 $21.55 View $21.04 Quote	Min.: 1 Mult.: 1
Circuit Breakers 15A CRT BKR ECHAR 277VAC UL508 1E15UM Altech 1: $34.15 5In Stock	Mfr. Part No. 1E15UM Mouser Part No 845-1E15UM	Altech	Circuit Breakers 15A CRT BKR ECHAR 277VAC UL508 Learn More about Altech um v ea circuit breakers	Datasheet	5In Stock	$34.15 $28.54 $23.79 $22.98 View $22.13 $21.32 $20.82 Quote	Min.: 1 Mult.: 1
Circuit Breakers 4A CRT BRKR ECHAR 277VAC UL508 1E4UM Altech 1: $34.15 6In Stock	Mfr. Part No. 1E4UM Mouser Part No 845-1E4UM	Altech	Circuit Breakers 4A CRT BRKR ECHAR 277VAC UL508 Learn More about Altech um v ea circuit breakers	Datasheet	6In Stock	$34.15 $28.54 $23.79 $22.98 View $21.98 $21.32 $20.82 Quote	Min.: 1 Mult.: 1
Circuit Breakers 50A CRT BKR ECHAR 277VAC UL508 1E50UM Altech 1: $38.43 11In Stock	Mfr. Part No. 1E50UM Mouser Part No 845-1E50UM	Altech	Circuit Breakers 50A CRT BKR ECHAR 277VAC UL508 Learn More about Altech um v ea circuit breakers	Datasheet	11In Stock	$38.43 $27.05 $26.16 $25.28 View $24.50 $23.91 Quote	Min.: 1 Mult.: 1
Circuit Breakers 10A G Characteristic UL 508 1 POLE 1G10UM Altech 1: $27.48 21In Stock	Mfr. Part No. 1G10UM Mouser Part No 845-1G10UM	Altech	Circuit Breakers 10A G Characteristic UL 508 1 POLE Learn More about Altech um v ea circuit breakers	Datasheet	21In Stock	$27.48 $26.96 $24.82 $23.56 View $22.70 $22.36 $22.22 Quote	Min.: 1 Mult.: 1
Circuit Breakers 20A G Characteristic UL 508 1 POLE 1G20UM Altech 1: $36.65 2In Stock 14On Order	Mfr. Part No. 1G20UM Mouser Part No 845-1G20UM	Altech	Circuit Breakers 20A G Characteristic UL 508 1 POLE Learn More about Altech um v ea circuit breakers	Datasheet	2In Stock 14On Order On Order Ship Dates Mfr. No: 1G20UM Stock: 2 Can Dispatch Immediately On Order: 6 Expected 2027/01/29 8 Expected 2027/03/05 Factory Lead Time: 18 Weeks	$36.65 $25.93 $24.00 $21.98 View $21.49 $20.88 $20.39 Quote	Min.: 1 Mult.: 1
Circuit Breakers 25A G Characteristic UL 508 1 POLE 1G25UM Altech 1: $36.65 1In Stock	Mfr. Part No. 1G25UM Mouser Part No 845-1G25UM	Altech	Circuit Breakers 25A G Characteristic UL 508 1 POLE Learn More about Altech um v ea circuit breakers	Datasheet	1In Stock	$36.65 $25.61 $23.10 $20.85 View $20.75 $20.11 $19.61 Quote	Min.: 1 Mult.: 1
Circuit Breakers 3.5A MCB GCHAR 1pl 277VAC UL508 1G3.5UM Altech 1: $34.15 3In Stock	Mfr. Part No. 1G3.5UM Mouser Part No 845-1G3.5UM	Altech	Circuit Breakers 3.5A MCB GCHAR 1pl 277VAC UL508 Learn More about Altech um v ea circuit breakers	Datasheet	3In Stock	$34.15 $23.79 $22.98 $21.98 View $21.32 $20.82 Quote	Min.: 1 Mult.: 1
Circuit Breakers 30A G Characteristic UL 508 1 POLE 1G30UM Altech 1: $34.15 1In Stock	Mfr. Part No. 1G30UM Mouser Part No 845-1G30UM	Altech	Circuit Breakers 30A G Characteristic UL 508 1 POLE Learn More about Altech um v ea circuit breakers	Datasheet	1In Stock	$34.15 $23.79 $22.61 $21.57 View $20.60 $20.10 Quote	Min.: 1 Mult.: 1
Circuit Breakers 5A G Characteristic UL 508 1 POLE 1G5UM Altech 1: $23.79 21In Stock	Mfr. Part No. 1G5UM Mouser Part No 845-1G5UM	Altech	Circuit Breakers 5A G Characteristic UL 508 1 POLE Learn More about Altech um v ea circuit breakers	Datasheet	21In Stock	$23.79 $23.47 $22.33 $21.52 View $20.95 Quote	Min.: 1 Mult.: 1
Circuit Breaker Accessories 1 Ph Busbar 204.6mm 12Pin, 115A 1P16UL3/12 Altech 1: $27.81 8In Stock	Mfr. Part No. 1P16UL3/12 Mouser Part No 845-1P16UL3/12	Altech	Circuit Breaker Accessories 1 Ph Busbar 204.6mm 12Pin, 115A Learn More about Altech busbar system	Datasheet	8In Stock	$27.81 $26.82 $24.75 $19.12 View $18.69 $18.10 $17.65 Quote	Min.: 1 Mult.: 1
Circuit Breaker Accessories 1 Ph Busbar 310.2mm 18Pin, 115A 1P16UL3/18 Altech 1: $44.69 1In Stock	Mfr. Part No. 1P16UL3/18 Mouser Part No 845-1P16UL3/18	Altech	Circuit Breaker Accessories 1 Ph Busbar 310.2mm 18Pin, 115A Learn More about Altech busbar system	Datasheet	1In Stock	$44.69 $33.60 $31.33 $28.97 View $28.01 $27.14 $27.05 Quote	Min.: 1 Mult.: 1
Circuit Breaker Accessories 1 Ph Busbar 99mm 6Pin, 115A 1P16UL3/6 Altech 1: $17.01 106In Stock	Mfr. Part No. 1P16UL3/6 Mouser Part No 845-1P16UL3/6	Altech	Circuit Breaker Accessories 1 Ph Busbar 99mm 6Pin, 115A Learn More about Altech busbar system	Datasheet	106In Stock	$17.01 $15.83 $15.11 $14.49 View $12.32 $12.00 $11.65 $11.54	Min.: 1 Mult.: 1
Circuit Breaker Accessories 3Pin3x1Pole50.3mm 1 PhaseBusbar 1P18U1/3 Altech 1: $10.40 10In Stock	Mfr. Part No. 1P18U1/3 Mouser Part No 845-1P18U1/3	Altech	Circuit Breaker Accessories 3Pin3x1Pole50.3mm 1 PhaseBusbar Learn More about Altech busbar system	Datasheet	10In Stock	$10.40 $9.76 $9.36 $7.52 View $7.45 $7.14 $6.83 $6.75 Quote	Min.: 1 Mult.: 1
Circuit Breaker Accessories 1 Ph Busbar 68.0mm 4Pin 4x1 pole, 80A 1P18U1/4 Altech 1: $8.19 40In Stock	Mfr. Part No. 1P18U1/4 Mouser Part No 845-1P18U1/4	Altech	Circuit Breaker Accessories 1 Ph Busbar 68.0mm 4Pin 4x1 pole, 80A Learn More about Altech busbar system	Datasheet	40In Stock	$8.19 $7.97 $7.75 Quote Quote	Min.: 1 Mult.: 1

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