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

Circuit Protection

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

Types of Circuit Protection

List Images

Results: 5,181

Applied Filters:

Brand = Multiple Values

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; }

Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.
Circuit Breakers TR11 sup. prot.,cent.mou.,bl. TR11-C-X-63-B-0-C-1.0A Altech 1: $6.62 2In Stock 10Expected 2026/11/04	Mfr. Part No. TR11-C-X-63-B-0-C-1.0A Mouser Part No 845-TR11CX63B0C10A	Altech	Circuit Breakers TR11 sup. prot.,cent.mou.,bl. Learn More about Altech tr circuit breakers	Datasheet	2In Stock 10Expected 2026/11/04	$6.62 $5.52 $5.47 $5.27 View $5.18 $5.15	Min.: 1 Mult.: 1
Circuit Breakers TR11 sup. prot.,cent.mou.,bl. TR11-C-X-63-B-0-C-1.5A Altech 1: $5.52 4In Stock 20Expected 2026/10/22	Mfr. Part No. TR11-C-X-63-B-0-C-1.5A Mouser Part No 845-TR11CX63B0C15A	Altech	Circuit Breakers TR11 sup. prot.,cent.mou.,bl. Learn More about Altech tr circuit breakers	Datasheet	4In Stock 20Expected 2026/10/22	$5.52 $5.40 $5.20 $4.91 View $4.80 $4.76	Min.: 1 Mult.: 1
Circuit Breakers TR11 sup. prot.,cent.mou.,bl. TR11-C-X-63-B-0-C-2.0A Altech 1: $7.14 6In Stock	Mfr. Part No. TR11-C-X-63-B-0-C-2.0A Mouser Part No 845-TR11CX63B0C20A	Altech	Circuit Breakers TR11 sup. prot.,cent.mou.,bl. Learn More about Altech tr circuit breakers	Datasheet	6In Stock	$7.14 $6.62 $5.52 $5.40 View $5.06 $4.95	Min.: 1 Mult.: 1
Circuit Breakers TR11 sup. prot.,cent.mou.,black TR11-C-X-63-B-0-C-3.0A Altech 1: $7.14 19In Stock	Mfr. Part No. TR11-C-X-63-B-0-C-3.0A Mouser Part No 845-TR11CX63B0C30A	Altech	Circuit Breakers TR11 sup. prot.,cent.mou.,black Learn More about Altech tr circuit breakers	Datasheet	19In Stock	$7.14 $6.62 $5.52 $5.40 View $5.06 $4.95	Min.: 1 Mult.: 1
Circuit Breakers TR11 sup. prot.,cent.mou.,bl. TR11-C-X-63-B-0-C-4.0A Altech 1: $7.14 6In Stock	Mfr. Part No. TR11-C-X-63-B-0-C-4.0A Mouser Part No 845-TR11CX63B0C40A	Altech	Circuit Breakers TR11 sup. prot.,cent.mou.,bl. Learn More about Altech tr circuit breakers	Datasheet	6In Stock	$7.14 $6.62 $5.52 $5.40 View $5.20 $4.91 $4.80 $4.76	Min.: 1 Mult.: 1
Circuit Breakers TR11 sup. prot.,cent.mou.,bl. TR11-C-X-63-B-0-C-5.0A Altech 1: $7.14 28In Stock	Mfr. Part No. TR11-C-X-63-B-0-C-5.0A Mouser Part No 845-TR11CX63B0C50A	Altech	Circuit Breakers TR11 sup. prot.,cent.mou.,bl. Learn More about Altech tr circuit breakers	Datasheet	28In Stock	$7.14 $6.62 $5.52 $5.40 View $5.20 $4.91 $4.80 $4.76	Min.: 1 Mult.: 1
Circuit Breakers TR11 sup. prot.,cent.mou.,bl. TR11-C-X-63-B-0-C-6.0A Altech 1: $6.21 9In Stock	Mfr. Part No. TR11-C-X-63-B-0-C-6.0A Mouser Part No 845-TR11CX63B0C60A	Altech	Circuit Breakers TR11 sup. prot.,cent.mou.,bl. Learn More about Altech tr circuit breakers	Datasheet	9In Stock	$6.21 $5.98 $4.99 $4.88 View $4.72 $4.44 $4.33 $4.30	Min.: 1 Mult.: 1
Circuit Breakers TR11 sup. prot.,cent.mou.,bl TR11-C-Y-63-B-0-C-16.0A Altech 1: $5.98 1In Stock	Mfr. Part No. TR11-C-Y-63-B-0-C-16.0A Mouser Part No 845-TR11CY63B0C160A	Altech	Circuit Breakers TR11 sup. prot.,cent.mou.,bl Learn More about Altech tr circuit breakers	Datasheet	1In Stock	$5.98 $4.99 $4.97 $4.76 View $4.68 $4.65	Min.: 1 Mult.: 1
Circuit Breakers TR11 sup. prot.,cent.mou.,bl. TR11-C-Y-63-B-0-C-9.0A Altech 1: $5.98 8In Stock	Mfr. Part No. TR11-C-Y-63-B-0-C-9.0A Mouser Part No 845-TR11CY63B0C90A	Altech	Circuit Breakers TR11 sup. prot.,cent.mou.,bl. Learn More about Altech tr circuit breakers	Datasheet	8In Stock	$5.98 $4.99 $4.97 $4.76 View $4.68 $4.65	Min.: 1 Mult.: 1
Circuit Breakers TR11sup.prot.,wingD,bl.slid.w/ Altech TR11-D-X-63-BB-2-N-0.5A TR11-D-X-63-BB-2-N-0.5A Altech 1: $7.14 6In Stock	Mfr. Part No. TR11-D-X-63-BB-2-N-0.5A Mouser Part No 845-TR11DX63BB2N05A	Altech	Circuit Breakers TR11sup.prot.,wingD,bl.slid.w/ Learn More about Altech tr circuit breakers	Datasheet	6In Stock	$7.14 $6.62 $5.52 $5.41 View $5.21 $4.91 $4.80 $4.76	Min.: 1 Mult.: 1
Circuit Breakers TR11sup.prot.,wingD,bl.slid.w/ TR11-D-X-63-BB-2-N-3.0A Altech 1: $6.62 8In Stock	Mfr. Part No. TR11-D-X-63-BB-2-N-3.0A Mouser Part No 845-TR11DX63BB2N30A	Altech	Circuit Breakers TR11sup.prot.,wingD,bl.slid.w/ Learn More about Altech tr circuit breakers	Datasheet	8In Stock	$6.62 $5.52 $5.47 $5.27 View $5.18 $5.15	Min.: 1 Mult.: 1
Circuit Breakers TR11sup.prot.,wingD,bl.slid.w/ Altech TR11-D-Y-63-BB-2-N-10.0A TR11-D-Y-63-BB-2-N-10.0A Altech 1: $6.21 3In Stock	Mfr. Part No. TR11-D-Y-63-BB-2-N-10.0A Mouser Part No 845-TR11DY63BB2N100A	Altech	Circuit Breakers TR11sup.prot.,wingD,bl.slid.w/ Learn More about Altech tr circuit breakers	Datasheet	3In Stock	$6.21 $4.99 $4.79 $4.70	Min.: 1 Mult.: 1
Circuit Breakers TR11sup.prot.,wingD,bl.slid.w/ Altech TR11-D-Y-63-BB-2-N-15.0A TR11-D-Y-63-BB-2-N-15.0A Altech 1: $6.21 8In Stock	Mfr. Part No. TR11-D-Y-63-BB-2-N-15.0A Mouser Part No 845-TR11DY63BB2N150A	Altech	Circuit Breakers TR11sup.prot.,wingD,bl.slid.w/ Learn More about Altech tr circuit breakers	Datasheet	8In Stock	$6.21 $5.98 $4.99 $4.90 View $4.73 $4.44 $4.33 $4.30	Min.: 1 Mult.: 1
Circuit Breakers TR20sup.prot.,bl.trip w/wh.hor.ma., TR20-C-63S-B3-B-3.0A-2 Altech 1: $16.25 3In Stock	Mfr. Part No. TR20-C-63S-B3-B-3.0A-2 Mouser Part No 845-TR20C63SB3B3.0A2	Altech	Circuit Breakers TR20sup.prot.,bl.trip w/wh.hor.ma., Learn More about Altech tr circuit breakers	Datasheet	3In Stock	$16.25 $11.43 $10.80 $10.39 View $9.92 $9.76	Min.: 1 Mult.: 1
Circuit Breakers Earth Leakage CB 40A, 30mA, 4p 09134911 Altech 1: $278.46 2In Stock	Mfr. Part No. 09134911 Mouser Part No 845-09134911	Altech	Circuit Breakers Earth Leakage CB 40A, 30mA, 4p	Datasheet	2In Stock	$278.46 $238.87 $222.92 $206.60 View Quote	Min.: 1 Mult.: 1
Circuit Breakers Earth Leakage CB 63A, 30mA, 4p 09144911 Altech 1: $431.14 1In Stock	Mfr. Part No. 09144911 Mouser Part No 845-09144911	Altech	Circuit Breakers Earth Leakage CB 63A, 30mA, 4p		1In Stock	$431.14 $365.39 $354.33 View Quote	Min.: 1 Mult.: 1
Circuit Breaker Accessories End support - APD SYSTEM 17BS Altech 1: $4.36 14In Stock	Mfr. Part No. 17BS Mouser Part No 845-17BS	Altech	Circuit Breaker Accessories End support - APD SYSTEM	Datasheet	14In Stock	$4.36 $4.18 $4.07 $3.88 View $3.81 $3.79	Min.: 1 Mult.: 1
Circuit Breaker Accessories End Cap for 1P/2P/3PU series 18/25CAP3P Altech 1: $0.62 281In Stock	Mfr. Part No. 18/25CAP3P Mouser Part No 845-18/25CAP3P	Altech	Circuit Breaker Accessories End Cap for 1P/2P/3PU series Learn More about Altech busbar system	Datasheet	281In Stock	$0.62 $0.52 $0.519	Min.: 1 Mult.: 1
Circuit Breaker Accessories Endcap for 18/25sqmm Busbar, 18/25CAP3PULC Altech 1: $3.31 33In Stock	Mfr. Part No. 18/25CAP3PULC Mouser Part No 845-18/25CAP3PULC	Altech	Circuit Breaker Accessories Endcap for 18/25sqmm Busbar,	Datasheet	33In Stock	$3.31 $3.01 $2.91 $2.05 View $1.79 $1.71 $1.59 $1.51 $1.44	Min.: 1 Mult.: 1
Circuit Breakers 13A MCB B Char 1pl 277VAC UL508 1B13UM Altech 1: $42.84 1In Stock	Mfr. Part No. 1B13UM Mouser Part No 845-1B13UM	Altech	Circuit Breakers 13A MCB B Char 1pl 277VAC UL508 Learn More about Altech um v ea circuit breakers	Datasheet	1In Stock	$42.84 $36.26 $27.71 $24.91 View $23.79 $23.09 $22.48 Quote	Min.: 1 Mult.: 1
Circuit Breakers 15A CRT BRKR BCHAR 1pl UL508 1B15UM Altech 1: $36.65 8In Stock	Mfr. Part No. 1B15UM Mouser Part No 845-1B15UM	Altech	Circuit Breakers 15A CRT BRKR BCHAR 1pl UL508 Learn More about Altech um v ea circuit breakers	Datasheet	8In Stock	$36.65 $30.40 $24.84 $22.05 View $21.55 $20.86 $20.36 Quote	Min.: 1 Mult.: 1
Circuit Breakers 15A,MCB B CHAR 1 PL, 277VAC, UL1077 1B15UR Altech 1: $27.97 6In Stock	Mfr. Part No. 1B15UR Mouser Part No 845-1B15UR	Altech	Circuit Breakers 15A,MCB B CHAR 1 PL, 277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	6In Stock	$27.97 $23.20 $21.25 $18.90 View $17.79 $17.19 $16.56 Quote	Min.: 1 Mult.: 1
Circuit Breakers 25A,MCB B CHAR 1 PL, 277VAC, UL1077 1B25UR Altech 1: $25.47 3In Stock	Mfr. Part No. 1B25UR Mouser Part No 845-1B25UR	Altech	Circuit Breakers 25A,MCB B CHAR 1 PL, 277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	3In Stock	$25.47 $17.85 $17.11 $16.24 View $15.40 $15.04 Quote	Min.: 1 Mult.: 1
Circuit Breakers 30A CRT BRKR BCHAR 1pl UL508 1B30UM Altech 1: $36.65 10In Stock	Mfr. Part No. 1B30UM Mouser Part No 845-1B30UM	Altech	Circuit Breakers 30A CRT BRKR BCHAR 1pl UL508 Learn More about Altech um v ea circuit breakers	Datasheet	10In Stock	$36.65 $30.40 $28.04 $22.73 View $22.13 $21.47 $20.97 Quote	Min.: 1 Mult.: 1
Circuit Breakers 1BU3A MCB B CHar 1 pl 277V UL 508 1B3UM Altech 1: $36.65 1In Stock	Mfr. Part No. 1B3UM Mouser Part No 845-1B3UM	Altech	Circuit Breakers 1BU3A MCB B CHar 1 pl 277V UL 508 Learn More about Altech um v ea circuit breakers	Datasheet	1In Stock	$36.65 $29.10 $26.70 $23.68 View $22.95 $22.24 $21.57 Quote	Min.: 1 Mult.: 1

Circuit Protection

Types of Circuit Protection

Applied Filters:

Customer Service Office

Company

Resources

Support