Mersen
SP07U550
Mersen SP07U550 550VAC 200KA 1500V
Only 1 left
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$47.00
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
Gould
62001
Gould Fuse Blocks and Holders 62001
Only 1 left
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$70.00
Bussmann
TI600
Bussmann Eaton Indicator Trip TI600..EACH
Only 3 left
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$135.00
Bussmann
JJN-125
Cooper Bussmann JJN-125 Fuses
Only 3 left
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$65.00
Bussmann
Eaton Bussmann Series BG3031SQ 1P 30A 480V for C
Eaton Bussmann Series BG3031SQ 1P 30A 480V for Class G Fuses
In stock
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$15.00
Bussmann
LKC-A-5
Eaton Bussmann LKC-A-5 250VAC (Lot of 100)
Only 5 lots left
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$609.00 / lot of 100
Mersen
A70P100-4TA
Ferraz Shawmut Amptrap A70P100-4TA Form 101 100A 700VAC 650VDC 100KA
Only 1 left
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$85.00
Bussmann
S-8301-12
BUSSMANN S-8301-12 Break Apart Fuse Block F16-7104 30A 300V...
Only 1 left
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$30.00
Littelfuse
Littlefuse Five SLO-BLO Fuses 3AG 3/4A 313 10000
Littlefuse Five SLO-BLO Fuses 3AG 3/4A 313 10000A 125-250V AC 35A... Lot of 5
In stock
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$9.90 / lot of 5
Mersen
A25X150
Gould Shawmut Amptrap A25X150 150AMPS 250VAC... Lot of 10
Only 1 lot left
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$60.00 / lot of 10
Royal
4/PK
Royal Electric TTT Elect 30A D Type S Fuses Edison Base.. 4/PK
In stock
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$8.00 / lot of 4
Mersen
2000 AJT100EI
Ferraz-Shawmut Amp-Trap 2000 AJT100EI 100A 600V AC 500V DC
Only 1 left
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$70.00
Siemens
5SX21
Siemens 5SX21 230/440 Max 277V AC Q 92183
Only 1 left
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$7.00
Siemens
5SX23
Siemens 5SX23 C4 Q 92 183 480V AC
Only 1 left
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$10.00
Eaton
WMZS3D05
Eaton WMZS3D05 UL1077 Miniature Circuit Breaker 277-480VAC 10KA
Only 1 left
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$15.00
Mitsubishi
NF30-FA
Mitsubishi NF30-FA 1.5KA 3P 50/60HZ
Only 1 left
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$29.99
Industrial part
235P255H01
Wesinghouse Bryant 235P255H01 CIR BKR 3 Pole UNITLL-6129
Only 1 left
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$26.00
Sprecher + Schuh
KTA3-100
Sprecher+schuh KTA3-100 40A 50/60HZ
Only 1 left
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$249.99
Mitsubishi
CP30-BA
Mitsubishi Circuit Protector CP30-BA Pole 1 3A
Only 4 left
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$20.00
Mitsubishi
CP30-BA
Mitsubishi CP30-BA AC220V 2.5KA 1 Pole 5A 50-60HZ Circuit Protector
Only 2 left
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$25.00
Mitsubishi
NF50-SVFU330
Mitsubishi NO-Fuse Breaker NF50-SVFU330 AC200V 30A 14KA
Only 1 left
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$184.99
Fusetron
FRS-R-80
FRS-R-80 600V Fusetron
Only 3 left
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$54.99
Industrial part
M24X1.5X20MM
Leveling Screw, M24X1.5X20MM 20624-01.. Lot of 4
In stock
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$10.00 / lot of 4
Mitsubishi
NF30-FA
Mitsubishi Electric NO-Fuse Breaker NF30-FA 20A 50/60HZ 65VDC AC220V
Only 2 left
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$15.00
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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.