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

18 mm Circuit Protection

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

Types of Circuit Protection

List Images

Results: 284

Applied Filters:

Width = 18 mm

Manufacturer

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.
Industrial Surge Protectors III R 230V/6KV AC 1351650000 Weidmuller 1: $116.90 20In Stock	Mfr. Part No. 1351650000 Mouser Part No 470-1351650000	Weidmuller	Industrial Surge Protectors III R 230V/6KV AC Learn More about Weidmuller vpu suppressors	Datasheet	20In Stock	$116.90 $111.41 $106.99 $92.40 $90.86	Min.: 1 Mult.: 1
Circuit Breakers 482-G323-J1M1-B2S1-4A E-T-A 1: $241.68 1In Stock	Mfr. Part No. 482-G323-J1M1-B2S1-4A Mouser Part No 457-82G323J1M1B2S14A	E-T-A	Circuit Breakers		1In Stock	$241.68 $200.31 $184.64 $152.58 View Quote	Min.: 1 Mult.: 1
Circuit Breakers SUP PTOR 5SY4 1P 240V 6A 7.5K B-TRIP 5SY41066 Siemens 1: $75.48 44In Stock	Mfr. Part No. 5SY41066 Mouser Part No 982-5SY41066	Siemens	Circuit Breakers SUP PTOR 5SY4 1P 240V 6A 7.5K B-TRIP Learn More about Siemens 5sy4 mini circuit breakers	Datasheet	44In Stock	$75.48 $64.46 $61.07 $50.90 View $47.50 $44.11	Min.: 1 Mult.: 1
Circuit Breakers SUP PTOR 5SY4 1P 240V 15A 7.5K C-TRIP 5SY41187 Siemens 1: $75.19 32In Stock	Mfr. Part No. 5SY41187 Mouser Part No 982-5SY41187	Siemens	Circuit Breakers SUP PTOR 5SY4 1P 240V 15A 7.5K C-TRIP Learn More about Siemens 5sy4 mini circuit breakers	Datasheet	32In Stock	$75.19 $63.41 $59.29 $47.60 View $43.83 $40.86 Quote	Min.: 1 Mult.: 1
Circuit Breakers Single pole compact high performance thermal circuit breaker with tease-free, trip-free, snap action mechanism and push/pull on/off manual actuation (M-type TO CBE to EN 60934). An indicator band on the push button clearly shows the tripped/off posit 482-G323-J1M1-B2S1-6A E-T-A 1: $246.50 1In Stock	Mfr. Part No. 482-G323-J1M1-B2S1-6A Mouser Part No 457-82G323J1M1B2S16A	E-T-A	Circuit Breakers Single pole compact high performance thermal circuit breaker with tease-free, trip-free, snap action mechanism and push/pull on/off manual actuation (M-type TO CBE to EN 60934). An indicator band on the push button clearly shows the tripped/off posit	Datasheet	1In Stock	$246.50 $186.66 $169.32	Min.: 1 Mult.: 1
Industrial Surge Protectors 48VDC 2W+G 1320-S-48 Bourns 1: $97.22 88In Stock	Mfr. Part No. 1320-S-48 Mouser Part No 652-1320-S-48	Bourns	Industrial Surge Protectors 48VDC 2W+G Learn More about Bourns dc spds	Datasheet	88In Stock	$97.22 $95.39 $87.45 $87.44	Min.: 1 Mult.: 1
Circuit Breakers MCB 5SJ4 1P 240V 6A SAME PH 14K B-TRIP 5SJ41066HG40 Siemens 1: $78.03 6In Stock	Mfr. Part No. 5SJ41066HG40 Mouser Part No 982-5SJ41066HG40	Siemens	Circuit Breakers MCB 5SJ4 1P 240V 6A SAME PH 14K B-TRIP Learn More about Siemens 5sj4 mini circuit breakers	Datasheet	6In Stock	$78.03 $66.66 $64.14 $59.42 View $57.47 Quote	Min.: 1 Mult.: 1
Industrial Surge Protectors AC II US 1 R 120/50 2730460000 Weidmuller 1: $138.54 5In Stock	Mfr. Part No. 2730460000 Mouser Part No 470-2730460000	Weidmuller	Industrial Surge Protectors AC II US 1 R 120/50 Learn More about Weidmuller vpu suppressors	Datasheet	5In Stock	$138.54 $116.95 $91.68 $91.63 $90.98	Min.: 1 Mult.: 1
Circuit Breakers MCB 5SJ4 1P 240V 1A 14K D-TRIP 5SJ41018HG41 Siemens 1: $86.70 5In Stock	Mfr. Part No. 5SJ41018HG41 Mouser Part No 982-5SJ41018HG41	Siemens	Circuit Breakers MCB 5SJ4 1P 240V 1A 14K D-TRIP Learn More about Siemens 5sj4 mini circuit breakers	Datasheet	5In Stock	$86.70 $75.21 $71.25 $59.38 $55.42	Min.: 1 Mult.: 1
Circuit Breakers MCB 5SJ4 1P 240V 4A SAME PH 14K D-TRIP 5SJ41048HG40 Siemens 1: $78.03 5In Stock	Mfr. Part No. 5SJ41048HG40 Mouser Part No 982-5SJ41048HG40	Siemens	Circuit Breakers MCB 5SJ4 1P 240V 4A SAME PH 14K D-TRIP Learn More about Siemens 5sj4 mini circuit breakers	Datasheet	5In Stock	$78.03 $67.68 $64.13 $53.44 $49.87	Min.: 1 Mult.: 1
Circuit Breakers MCB 5SJ4 1P 240V 6A 14K C-TRIP 5SJ41067HG41 Siemens 1: $86.70 23In Stock	Mfr. Part No. 5SJ41067HG41 Mouser Part No 982-5SJ41067HG41	Siemens	Circuit Breakers MCB 5SJ4 1P 240V 6A 14K C-TRIP Learn More about Siemens 5sj4 mini circuit breakers	Datasheet	23In Stock	$86.70 $75.21 $71.25 $59.38 $55.42	Min.: 1 Mult.: 1
Circuit Breakers MCB 5SJ4 1P 240V 5A SAME PH 14K D-TRIP 5SJ41118HG40 Siemens 1: $78.03 16In Stock	Mfr. Part No. 5SJ41118HG40 Mouser Part No 982-5SJ41118HG40	Siemens	Circuit Breakers MCB 5SJ4 1P 240V 5A SAME PH 14K D-TRIP Learn More about Siemens 5sj4 mini circuit breakers	Datasheet	16In Stock	$78.03 $67.68 $64.13 $53.44 $49.87	Min.: 1 Mult.: 1
Circuit Breakers MCB 5SJ4 1P 277V 3A 10K C-TRIP 5SJ41037HG42 Siemens 1: $86.70 13In Stock	Mfr. Part No. 5SJ41037HG42 Mouser Part No 982-5SJ41037HG42	Siemens	Circuit Breakers MCB 5SJ4 1P 277V 3A 10K C-TRIP Learn More about Siemens 5sj4 mini circuit breakers	Datasheet	13In Stock	$86.70 $75.21 $71.25 $59.38 $55.42	Min.: 1 Mult.: 1
Circuit Breakers SUP PTOR 5SY4 1P 240V 1A 7.5K C-TRIP 5SY41017 Siemens 1: $75.19 20In Stock	Mfr. Part No. 5SY41017 Mouser Part No 982-5SY41017	Siemens	Circuit Breakers SUP PTOR 5SY4 1P 240V 1A 7.5K C-TRIP Learn More about Siemens 5sy4 mini circuit breakers	Datasheet	20In Stock	$75.19 $63.41 $59.29 $47.60 View $43.83 $40.86 Quote	Min.: 1 Mult.: 1
Circuit Breakers MCB 5SJ4 1P 240V 20A SAME PH 14K C-TRIP 5SJ41207HG40 Siemens 1: $78.77 24In Stock	Mfr. Part No. 5SJ41207HG40 Mouser Part No 982-5SJ41207HG40	Siemens	Circuit Breakers MCB 5SJ4 1P 240V 20A SAME PH 14K C-TRIP Learn More about Siemens 5sj4 mini circuit breakers	Datasheet	24In Stock	$78.77 $66.10 $60.96 $50.44 $46.45	Min.: 1 Mult.: 1
Circuit Breakers MCB 5SJ4 1P 240V 2A SAME PH 14K C-TRIP 5SJ41027HG40 Siemens 1: $78.03 15In Stock	Mfr. Part No. 5SJ41027HG40 Mouser Part No 982-5SJ41027HG40	Siemens	Circuit Breakers MCB 5SJ4 1P 240V 2A SAME PH 14K C-TRIP Learn More about Siemens 5sj4 mini circuit breakers	Datasheet	15In Stock	$78.03 $67.68 $64.13 $53.44 $49.87	Min.: 1 Mult.: 1
Circuit Breakers Single pole compact high performance thermal circuit breaker with tease-free, trip-free, snap action mechanism and push/pull on/off manual actuation (M-type TO CBE to EN 60934). An indicator band on the push button clearly shows the tripped/off posit 482-G323-J1M1-B2S0T-20A E-T-A 1: $181.60 7In Stock	Mfr. Part No. 482-G323-J1M1-B2S0T-20A Mouser Part No 457-2G323J1M1B2S0T20	E-T-A	Circuit Breakers Single pole compact high performance thermal circuit breaker with tease-free, trip-free, snap action mechanism and push/pull on/off manual actuation (M-type TO CBE to EN 60934). An indicator band on the push button clearly shows the tripped/off posit	Datasheet	7In Stock	$181.60 $180.29 $129.95 $119.54 $116.78	Min.: 1 Mult.: 1
Industrial Surge Protectors 110VDC 2W+G 1320-S-110 Bourns 1: $131.57 74In Stock	Mfr. Part No. 1320-S-110 Mouser Part No 652-1320-S-110	Bourns	Industrial Surge Protectors 110VDC 2W+G Learn More about Bourns dc spds	Datasheet	74In Stock	$131.57 $114.66 $108.72 $108.39 View $107.87 $97.94 Quote	Min.: 1 Mult.: 1
Industrial Surge Protectors Din Rail DC Power Surge Suppressor, 24Vdc, 20kA 8/20 s DS220S-24DC Citel 1: $105.95 181In Stock 416Expected 03/12/2026	Mfr. Part No. DS220S-24DC Mouser Part No 703-DS220S-24DC	Citel	Industrial Surge Protectors Din Rail DC Power Surge Suppressor, 24Vdc, 20kA 8/20 s Learn More about Citel ds220s	Datasheet	181In Stock 416Expected 03/12/2026	$105.95 $83.56	Min.: 1 Mult.: 1
Industrial Surge Protectors AC SPD, 1W-G,275VAC 1250A-1S-230 Bourns 1: $103.83 66In Stock	Mfr. Part No. 1250A-1S-230 Mouser Part No 652-1250A-1S-230	Bourns	Industrial Surge Protectors AC SPD, 1W-G,275VAC Learn More about Bourns 1250a ac spds	Datasheet	66In Stock	$103.83 $100.93 $86.90 $82.68 $75.43	Min.: 1 Mult.: 1
Circuit Breaker Accessories FAZ UL BUS CONNECTOR- CONDUCTOR BB-UL-TE/50 Eaton Electrical 1: $167.52 76In Stock	Mfr. Part No. BB-UL-TE/50 Mouser Part No 504-BB-UL-TE/50	Eaton Electrical	Circuit Breaker Accessories FAZ UL BUS CONNECTOR- CONDUCTOR		76In Stock	$167.52 $141.04 $126.94 $106.60 $91.96	Min.: 1 Mult.: 1
Industrial Surge Protectors Din Rail DC Power Surge Suppressor, 12Vdc, 20kA 8/20 s DS220S-12DC Citel 1: $147.90 47In Stock	Mfr. Part No. DS220S-12DC Mouser Part No 703-DS220S-12DC	Citel	Industrial Surge Protectors Din Rail DC Power Surge Suppressor, 12Vdc, 20kA 8/20 s Learn More about Citel ds220s	Datasheet	47In Stock	$147.90 $122.64 $114.64 $87.67	Min.: 1 Mult.: 1
Industrial Surge Protectors Din Rail DC Power Surge Suppressor, 48Vdc, 30kA 8/20 s DS230S-48DC Citel 1: $162.79 67In Stock	Mfr. Part No. DS230S-48DC Mouser Part No 703-DS230S-48DC	Citel	Industrial Surge Protectors Din Rail DC Power Surge Suppressor, 48Vdc, 30kA 8/20 s Learn More about Citel ds230s	Datasheet	67In Stock	$162.79 $134.98 $127.38 $97.41	Min.: 1 Mult.: 1
Industrial Surge Protectors Din Rail AC Power Surge Suppressor, 40kA max, 240/120 V Single Phase, 2P DS240S-120/G Citel 1: $163.38 74In Stock	Mfr. Part No. DS240S-120/G Mouser Part No 703-DS240S-120/G	Citel	Industrial Surge Protectors Din Rail AC Power Surge Suppressor, 40kA max, 240/120 V Single Phase, 2P Learn More about Citel ds240s ac	Datasheet	74In Stock	$163.38 Quote Quote	Min.: 1 Mult.: 1
Industrial Surge Protectors Din Rail AC Power Surge Suppressor, 40kA max, 400/230 V 3 phase, 2P DS240S-230/G Citel 1: $235.40 73In Stock	Mfr. Part No. DS240S-230/G Mouser Part No 703-DS240S-230/G	Citel	Industrial Surge Protectors Din Rail AC Power Surge Suppressor, 40kA max, 400/230 V 3 phase, 2P Learn More about Citel ds240s ac	Datasheet	73In Stock	$235.40 $195.12 $179.89	Min.: 1 Mult.: 1

18 mm Circuit Protection

Types of Circuit Protection

Applied Filters:

Customer Service Office

Company

Resources

Support