Bussmann
FRN-R-7
Bussmann Fusetron FRN-R-7 Fuse 250V 7A 125VDC 20KA Time Delay Class RK5
Only 1 left
Free shippingShips next business day
$6.89
Circuit Breakers, Fuses & Protection
3,513 listings · 3,454 in stock
3,513 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 Breakers131 in stock
- Surge Protection & Ground Fault127 in stock
- Protective & Monitoring Relays30 in stock
Bussmann
388-410
Multi 2512 388-410 Buss NON-60 Fuse Industrial Electrical Component OB
Only 1 left
Free shippingShips next business day
$6.89
Airpax
219-3-2600-412
Airpax 219-3-2600-412 Circuit Breaker 32A 480V 50/60HZ 3-Pole Industrial
Only 1 left
Free shippingShips next business day
$74.89
Federal Pacific
UBIF240N
Federal Pacific UBIF240N Circuit Breaker 40A 120/240V 2-Pole Plug-In
Only 1 left
Free shippingShips next business day
$26.89
Gould
TR2-1/4R
Gould TR2-1/4R Fuse 250V (Lot of 11)
Only 1 lot left
Free shippingShips next business day
$26.95 / lot of 11
Bussmann
REN-35
Bussman REN-35 Fuse Class H Super LAG (Lot of 3)
Only 1 lot left
Free shippingShips next business day
$22.95 / lot of 3
Bussmann
FRS-R-1-1/8
Bussman FRS-R-1-1/8 Fuse 600V (Lot of 5)
Only 1 lot left
Free shippingShips next business day
$39.95 / lot of 5
Bussmann
FRN-R-3-1/2
Bussmann FRN-R-3-1/2 Fuse 250V 3.5A Time Delay Class RK5 Dual Element
Only 1 left
Free shippingShips next business day
$6.89
Bussmann
NOS-45
Buss NOS-45 Fuse 600V (Lot of 7)
Only 1 lot left
Free shippingShips next business day
$42.95 / lot of 7
Bussmann
KBC-15
Bussmann KBC-15 Fuse 600V 15A High Speed Industrial Electrical Lot of 3
Only 1 lot left
Free shippingShips next business day
$12.89 / lot of 3
Mersen
OT250
Shawmut OT250 Fuse 250V One-Time Non-Renewable Industrial Electrical OB
Only 3 left
Free shippingShips next business day
$6.89
Mersen
TRS1R
Ferraz Shawmut TRS1R Fuse 600V 1A (Lot of 4)
Only 1 lot left
Free shippingShips next business day
$42.95 / lot of 4
Mersen
AJT1-6/10
Mersen AJT1-6/10 Fuse 600V 10A (Box of 5)
Only 2 lots left
Free shippingShips next business day
$96.95 / lot of 5
Bussmann
LPS-RK-3-1/2SP
Bussman LPS-RK-3-1/2SP Low Peak Fuse 600V (Lot of 3) Fuse 600V
Only 1 lot left
Free shippingShips next business day
$31.95 / lot of 3
Bussmann
LPS-RK-1-8/10SP
Bussman LPS-RK-1-8/10SP Low Peak Fuse 600V (Lot of 6)
Only 1 lot left
Free shippingShips next business day
$82.95 / lot of 6
Eaton
155F025PGE
Eaton Cooper Power 155F025PGE Fuse 15.5KV 25 Amps 50KA
Only 1 left
Free shippingShips next business day
$324.95
Littelfuse
03266.25H
Littlefuse 03266.25H Fuse 250V (Box of 100)
Only 3 lots left
Free shippingShips next business day
$94.95 / lot of 100
Mersen
A6Y20-1R
Gould Shawmut A6Y20-1R Fuse 600VAC 20A Industrial Electrical Box of 10
Only 1 lot left
Free shippingShips next business day
$61.89 / lot of 10
Bussmann
FRS-R-5
Bussman FRS-R-5 Fuse 600VAC 300VDC (Lot of 3)
Only 3 lots left
Free shippingShips next business day
$83.95 / lot of 3
Mersen
OTS3
Ferraz Shawmut OTS3 Fuse 250V (Lot of 5)
Only 2 lots left
Free shippingShips next business day
$19.95 / lot of 5
Mersen
TRS2-1/2R
Ferraz Shawmut TRS2-1/2R Tri-Onic Fuse 600V 2-1/2A (Box of 9)
Only 1 lot left
Free shippingShips next business day
$61.95 / lot of 9
Bussmann
BCF-15
Buss Fuse BCF-15 Fuse (Lot of 5)
Only 4 lots left
Free shippingShips next business day
$93.95 / lot of 5
Eaton
3533002M11M
Eaton Cooper Power 3533002M11M ELS Current Limiting Fuse 8.3KV 2A 50KA OB
Only 2 left
Free shippingShips next business day
$93.89
Mersen
TR450R
Ferraz Shawmut TR450R H1027095 450A 250VAC Fuse Class RK5 Fuse
Only 4 left
Free shippingShips next business day
$244.95
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.