Littelfuse
Littlefuse Flsr 9 Fuse 600V Class RK-5 (Box of 9
Littlefuse Flsr 9 Fuse 600V Class RK-5 (Box of 9)
Only 1 lot left
Free shippingShips next business day
$71.95 / lot of 9
Circuit Breakers, Fuses & Protection
3,515 listings · 3,456 in stock
3,515 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 & Accessories827 in stock
- Miniature & DIN Rail Circuit Breakers307 in stock
- Fuse Holders & Fuse Blocks253 in stock
- Disconnect & Safety Switches206 in stock
- Molded Case Circuit Breakers131 in stock
- Surge Protection & Ground Fault127 in stock
- Protective & Monitoring Relays30 in stock
Littelfuse
FLNR5-6/10
Littlefuse FLNR5-6/10 Fuse 250V Class RK5 (Box of 6)
Only 1 lot left
Free shippingShips next business day
$41.95 / lot of 6
Bussmann
FRN-R-7
Bussman FRN-R-7 Fuse 250V Class RK5 (Lot of 10)
Only 1 lot left
Free shippingShips next business day
$79.95 / lot of 10
Littelfuse
FLSR005
Littlefuse FLSR005 FLSR5 Fuse 600V Class RK-5
Only 1 left
Free shippingShips next business day
$12.95
Cutler-Hammer
CH240R
Eaton Cutler-Hammer CH240R 2-Pole 40A 120/240VAC 10kA Circuit Breaker Industrial
Only 1 left
Free shippingShips next business day
$14.89
General Electric
NP1578013-P32
General Electric NP1578013-P32 THQL 3-Pole 30A 240VAC Circuit Breaker HACR Rated
Only 1 left
Free shippingShips next business day
$64.99
Federal Pacific
KP-810
Federal Pacific KP-810 2-Pole Circuit Breaker Stab-Lok Type NA CTL 120/240VAC
Only 2 left
Free shippingShips next business day
$9.99
Square D
KN-312
Square D QO KN-312 2-Pole Circuit Breaker CTL 120/240VAC Plug-In
Only 1 left
Free shippingShips next business day
$14.99
Siemens
Q260
Siemens Q260 2-Pole 60A Circuit Breaker Type QP 120/240VAC 60Hz Plug-In
Only 1 left
Free shippingShips next business day
$9.89
Federal Pacific
Federal Pacific Electric Stab-Lok 3-Pole Circuit
Federal Pacific Electric Stab-Lok 3-Pole Circuit Breaker 240VAC CTL Type FPE
Only 1 left
Free shippingShips next business day
$13.89
Bussmann
LKS-600
Bussmann LKS-600 SuperLag Fuse Renewal Link 600A 600V Time Delay 2/order
Only 1 left
Free shippingShips next business day
$12.99
Eaton
4-FB
Eaton UT 4-FB Fuse Terminal Block 600V 6.3A 6x20mm DIN Rail Mount 2/order
Only 1 left
Free shippingShips next business day
$6.89
Allen-Bradley
1336F-MCB-SP1F
Allen Bradley 1336F-MCB-SP1F Driver Board
Only 1 left
Free shippingShips next business day
$774.95
Industrial part
SH 1-1/4" Quick Disconnect Bushing 1-1/4"
SH 1-1/4" Quick Disconnect Bushing 1-1/4"
Only 1 left
Free shippingShips next business day
$34.95
Ferraz Shawmut
A70P100-4TA
Ferraz and Shawmut A70P100-4TA Fuse 100A 700VAC 100KA 650VDC Each
Only 1 left
Free shippingShips next business day
$78.95
Bussmann
S500-630-R
Bussmann S500-630-R 35A 250VAC Semiconductor Fuse Pack of 5 Industrial
Only 1 lot left
Free shippingShips next business day
$23.89 / lot of 5
Mersen
GDL6-1/4
MERSEN Ferraz Shawmut GDL6-1/4 6.25A 250V AC 200A 125V AC 10KA (PACK OF 5)
Only 2 lots left
Free shippingShips next business day
$11.95 / lot of 5
Bussmann
Bussmann 31201.6P 1.6A 250V Miniature Fuse Slow-
Bussmann 31201.6P 1.6A 250V Miniature Fuse Slow-Blow Pack of 2
Only 1 lot left
Free shippingShips next business day
$7.89 / lot of 2
Bussmann
AGA-1/2
Bussmann AGA-1/2 Fast-Acting Glass Fuse 1/2A 250V Pack of 5 Electronic
Only 1 lot left
Free shippingShips next business day
$10.89 / lot of 5
Littelfuse
Little Fuse 32601.6P (Lot of 5)
Little Fuse 32601.6P (Lot of 5)
Only 1 lot left
Free shippingShips next business day
$10.95 / lot of 5
Littelfuse
Littelfuse 21601.6P 1.6A 250V Slow-Blow Fuse 216
Littelfuse 21601.6P 1.6A 250V Slow-Blow Fuse 216 Series Pack of 5
Only 2 lots left
Free shippingShips next business day
$9.89 / lot of 5
Industrial part
PJ262B-SP-L
PJ262B-SP-L Brown 2-Gang Decorator GFCI Wallplate Mid-Size Unbreakable
Only 4 left
Free shippingShips next business day
$6.89
Bussmann
MDL-2/10-R
Bussmann MDL-2/10-R Time-Delay Fuse 2/10A 250V Glass Pack of 5
Only 1 lot left
Free shippingShips next business day
$9.89 / lot of 5
Littelfuse
Littelfuse 314006P 6A 250V Fast-Acting Fuse 3AG
Littelfuse 314006P 6A 250V Fast-Acting Fuse 3AG Glass Pack of 5
Only 2 lots left
Free shippingShips next business day
$10.89 / lot of 5
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.