Mersen
RFS600
Gould Shawmut Renewable New Fuse 600A, 600V, CAT# RFS600 Each
Only 1 left
Free shippingShips next business day
$25.00
Circuit Breakers, Fuses & Protection
3,524 listings · 3,464 in stock
3,524 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 & Accessories829 in stock
- Miniature & DIN Rail Circuit Breakers308 in stock
- Fuse Holders & Fuse Blocks254 in stock
- Disconnect & Safety Switches207 in stock
- Molded Case Circuit Breakers132 in stock
- Surge Protection & Ground Fault129 in stock
- Protective & Monitoring Relays30 in stock
Mersen
GW15 V212860
new Fuse LOT OF 4 MERSEN GW15 V212860
Only 2 lots left
Free shippingShips next business day
$47.99 / lot of 4
Mersen
RF150
GOULD Shawmut Class H Fus Time DELAY Renewable Fuse RF150
In stock
Free shippingShips next business day
$20.00
Mersen
22003
Ferrazm Shawmut 22003 250V-200A 3 POLe fuse holder
Only 1 left
Free shippingShips next business day
$689.99
Square D
AB-5779
Square D Type HOP Tipo 10KA 120/240V AB-5779 Hacr Type 20AMP
Only 2 left
Free shippingShips next business day
$6.99
Square D
XR-2141
Square D XR-2141 Type QO SWD 120/240VAC 1 Pole Unit Circuit Breaker 8-14 AWG
Only 2 left
Free shippingShips next business day
$6.99
Square D
LJ-1243
Square D LJ-1243 1 Pole 120/240VAC Circuit Breaker 20AMP Each
Only 2 left
Free shippingShips next business day
$6.99
Mitsubishi
CP30BA-1P-21-M-5A
Mitsubishi CP30BA-1P-21-M-5A Circuit Protector K55-N9788-01 Mazak D51MA013550
Only 1 left
Free shippingShips next business day
$50.00
Square D
QO10
Square D QO10 20A M145 10000AMPS RMS 120/240VAC
In stock
Free shippingShips next business day
$109.99
Ferraz Shawmut
10X38
Ferraz Sawmut 10X38 Mersen USM3 C218548 30-32A 600-800VAC 1000VDC 100-200KA RMS
Only 2 left
Free shippingShips next business day
$45.00
Ferraz Shawmut
USCC1I
Ferraz Sawmut Class CC Fuses Only USCC1I X213943 200000 Amp 600V 30A (Lot of 2)
Only 2 lots left
Free shippingShips next business day
$26.00 / lot of 2
Mersen
Shur-LAG 25 Amps Renewal Links Shawmut.. Box of
Shur-LAG 25 Amps Renewal Links Shawmut.. Box of 6
Only 1 lot left
Free shippingShips next business day
$48.00 / lot of 6
Bussmann
FRN-R-5-6/10
Buss Fuse FRN-R-5-6/10 (Lot of 3)
In stock
Free shippingShips next business day
$25.00 / lot of 3
Eaton
U-HI20-PKZ2
Eaton Klockner Moller U-HI20-PKZ2(230V50HZ,240V60HZ)
Only 1 left
Free shippingShips next business day
$259.00
Bussmann
FNM-8
Buss Fuse FNM-8... Lot of 3
Only 1 lot left
Free shippingShips next business day
$10.00 / lot of 3
Reliance Electric
Reliance Ecnr 6/10 250V Class RK5
Reliance Ecnr 6/10 250V Class RK5
In stock
Free shippingShips next business day
$12.00
Bussmann
H25030-30A
Buss Fuseholder H25030-30A 60C/75C Wire 10K RMS SYM Amps Class H Fuse
Only 3 left
Free shippingShips next business day
$41.99
Gould
USM1
Gould Ultrasafe USM1 600V 30A
Only 1 left
Free shippingShips next business day
$19.00
Bussmann
BCA6032PQ
Bussmann Fuseholder BCA6032PQ 30A 600V AC/DC 200000 Amp RMS SYM Rating 10-18AWG
Only 1 left
Free shippingShips next business day
$6.99
Gould
USM2
Gould Ultrasafe USM2 600V 30A
Only 2 left
Free shippingShips next business day
$12.00
Mersen
USGM2
Ferraz Shawmut USGM2 E1022285 600-750VAC 1000VDC 30-32A 100-200KA RMS SYM 6-10AW
Only 1 left
Free shippingShips next business day
$64.99
Bussmann
BM6033SQ
Bussmann Cooper Ondustries BM6033SQ E12-5680 30A 600V
Only 2 left
Free shippingShips next business day
$6.99
Gould
US6J1L
Gould Ultrasafe Fuseolder US6J1L 200000 Amp RMS SYM 600V 60A
Only 1 left
Free shippingShips next business day
$24.99
Mersen
20601
Ferraz Shawmut Gould 20601 1 Pole Fuse Holder 250 V 60 Amp
Only 1 left
Free shippingShips next business day
$15.00
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.