Siemens
3RV2011-1JA15
Siemens 3RV2011-1JA15 Sirius Motor Protector Circuit Breaker 10A 3 Pole 600VAC
Only 1 left
Free shippingShips next business day
$28.89
Circuit Breakers, Fuses & Protection
3,512 listings · 3,453 in stock
3,512 Circuit Breakers, Fuses & Protection listings in 8 categories, from makers like Bussmann, Mersen, Eaton. Surplus, used and new-surplus, every item photographed. Free shipping in the lower 48 and zero lead time on everything in stock.
Categories in Circuit Breakers, Fuses & Protection
- Fuses1,575 in stock
- Circuit Breakers & Accessories826 in stock
- Miniature & DIN Rail Circuit Breakers307 in stock
- Fuse Holders & Fuse Blocks252 in stock
- Disconnect & Safety Switches206 in stock
- Molded Case Circuit Breakers130 in stock
- Surge Protection & Ground Fault127 in stock
- Protective & Monitoring Relays30 in stock
Siemens
3RV2711-1DD10
Siemens 3RV2711-1DD10 Sirius Motor Starter Protector Circuit Breaker 3 Pole DIN
Only 1 left
Free shippingShips next business day
$18.89
Wohner
Wohner QCC Class J 30A 600V Busbar Mounted Fuse
Wohner QCC Class J 30A 600V Busbar Mounted Fuse Holder 3 Pole 200kA Industrial
Only 3 left
Free shippingShips next business day
$98.89
Industrial part
Circuit Breaker Operating Mechanism Rotary Handl
Circuit Breaker Operating Mechanism Rotary Handle Extension Rod Accessory UL
Only 2 left
Free shippingShips next business day
$19.89
Allen-Bradley
1492-IFM20F-F24A-2
Allen-Bradley 1492-IFM20F-F24A-2 Fusible Interface Module 16 Point 10-30 VAC/DC
Only 1 left
Free shippingShips next business day
$14.89
Intermatic
AG6503C3
Intermatic ArresterGuard AG6503C3 Surge Protection Device 347/600VAC 50kA Type 4
Only 1 left
Free shippingShips next business day
$46.89
Industrial part
DSP-1L
Controlab DSP-1L Phase Failure Reversal Detector 480V 3PH 60Hz 4 Amp 24-240VAC
Only 1 left
Free shippingShips next business day
$28.89
Wohner
Wohner 3077 Fuse Holder 30A 600V AC/DC Class CC
Wohner 3077 Fuse Holder 30A 600V AC/DC Class CC Industrial Electrical Germany
In stock
Free shippingShips next business day
$14.89
Sprecher + Schuh
UL489
Sprecher+Schuh L9-3/1/C Circuit Breaker 3A 1 Pole C Curve 277V UL489 Industrial
Only 3 left
Free shippingShips next business day
$16.89
Citel
M50-277Y-A
Citel M50-277Y-A Surge Protective Device Type 1 SPD 480/277V 3Y Industrial Power
Only 2 left
Free shippingShips next business day
$190.89
Wieland
34.243.0030.0
Wieland 34.243.0030.0 Non-Incendive Barrier Analog Discrete 24VDC Class I Div 2
In stock
Free shippingShips next business day
$68.89
Square D
DP-4075
Square D Type HOM DP-4075 40A 2-Pole 120/240V 10kA Circuit Breaker Common Trip
Only 1 left
Free shippingShips next business day
$14.89
Allen-Bradley
1489-A1C100
Allen-Bradley 1489-A1C100 Miniature Circuit Breaker 1-Pole 10A 277V Industrial
Only 1 left
Free shippingShips next business day
$9.89
Mersen
30312
Gould Shawmut 30312 Fuse Block Holder 600V 30A 200kA Industrial Electrical Part
Only 3 left
Free shippingShips next business day
$9.89
Industrial part
JJS-20
T-Tron JJS-20 Class T Fuse HRC-1 Industrial Electrical Control Panel Component
Only 3 left
Free shippingShips next business day
$9.89
Tron
FNQ-2
Tron FNQ-2 Time-Delay Fuse 500V AC 10kA Industrial Electrical Control Panel Part
Only 3 left
Free shippingShips next business day
$9.89
USD
T60060-3CR
USD T60060-3CR Class T Fuse Holder Block 3 Pole 60A 600V Industrial Electrical
Only 4 left
Free shippingShips next business day
$11.89
Cutler-Hammer
CPSBXCH240DBDRSXC
Cutler-Hammer CPSBXCH240DBDRSXC Clipper Power System Surge Protector 3PH 240VAC
Only 1 left
Free shippingShips next business day
$733.89
Industrial part
Briggs & Stratton Power Inlet Box L14-20 20A 120
Briggs & Stratton Power Inlet Box L14-20 20A 120/240V NEMA 3R Generator Breaker
In stock
Free shippingShips next business day
$24.89
MTE
M-1776
MTE Corporation M-1776 Surge Arrestor MOV 480V 3PH Industrial Protection Module
In stock
Free shippingShips next business day
$39.89
Hoffman
CDSC24228SS
Hoffman CDSC24228SS Concept Stainless Disconnect Enclosure 24x22x8 Type 4X IP66
Only 1 left
Free shippingShips next business day
$1,234.89
Acopian
B28G500
Acopian B28G500 Regulated DC Power Supply 3A 250V Fuse Industrial Made in USA
Only 1 left
Free shippingShips next business day
$170.89
Allen-Bradley
140UE-H7E3-C32
Allen-Bradley 140UE-H7E3-C32 Molded Case Circuit Breaker 32A 3-Pole 415V 70kA
Only 5 left
Free shippingShips next business day
$201.89
Cutler-Hammer
FW3020LM08
Eaton Cutler-Hammer FW3020LM08 Series C Circuit Breaker 20A 690VAC 3-Pole 40kA
Only 1 left
Free shippingShips next business day
$517.89
Get a quote on Circuit Breakers, Fuses & Protection
Need more units than we list, a part you don't see here, or prices for a whole list? Send us the part numbers and quantities – we reply within 1 hour during business hours (Mon–Fri 9–3:30 CT).
Guides for Circuit Breakers, Fuses & Protection
- Circuit protectionMolded Case Circuit Breaker Ratings & ReplacementsFrame size, trip rating, interrupting rating (kA), voltage and slash ratings, trip units and mounting – and a checklist for a safe replacement.
- Parts identificationHow to Read Breaker & VFD Nameplates and Date CodesFrame, trip and interrupting ratings on breakers; input, output, duty ratings and series on drives – and where to look for the date of manufacture.