Fuses & Circuit Breakers

Although they work in different ways, fuses and circuit breakers broadly have the same purpose; to protect electrical appliances and electrical circuits from short circuits, and excessive current (called overcurrent or overload).

Fuses

Fuses are relatively low cost electrical safety devices. If too much current enters the circuit, the fuse will burn out (sometimes called blowing out). When the fuse blows out it breaks the circuit. This protects the attached devices and allows you to touch devices without being electrocuted. When the fuse blows, it must be replaced before using the device or appliance again.

Circuit breakers

Circuit breakers work in a similar way to fuses, but they are resettable. Once a fault is detected (this is typically a short circuit or an excessive amount of current flowing through the circuit) the circuit breaker will interrupt the flow of current. When the circuit breaker trips, it's simply a case of flicking a switch to reset the circuit breaker. As soon as you've reset the circuit breaker, it is ready to use again.

Circuit Breakers
Circuit Breakers
Earth & Lightning Protection
Earth & Lightning Protection
Fuse Holders & Accessories
Fuse Holders & Accessories
Fuses
Fuses

33502 Products showing for Fuses & Circuit Breakers

234 of 999+
Temporarily out of stock
Schneider Electric Acti9 Acti9 Reflex MCB, 3P, 25A Curve B, 230V AC, 24V DC, 10 KA Breaking Capacity
  • RS Stock No. 205-371
  • Mfr. Part No. A9C61325
Each
PHP74,650.25(exc. VAT)
Temporarily out of stock
Sato Parts 10A Rail Mount Fuse Holder for 6.3 x 32 mm, 6.35 x 30 x 6.35 x 31.8 mm Fuse, 1P, 250V
  • RS Stock No. 229-4966
  • Mfr. Part No. F-700-AL
Each
PHP605.66(exc. VAT)
In Stock
ABB F404 RCCB, 40A, 3+N Pole, 30mA, Type A
  • RS Stock No. 178-241
  • Mfr. Part No. 2CCF544110E0400 - F404A-40/0.03, 2CC
Each
PHP12,415.31(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200M MCB, 4P, 8A Curve K, 400V AC, 125V DC, 15 kA Breaking Capacity
  • RS Stock No. 201-251
  • Mfr. Part No. 2CDS274001R0407
Each
PHP42,634.90(exc. VAT)
Temporarily out of stock
Eaton MCB, 4P, 16A Curve D, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 243-505
  • Mfr. Part No. 101370 PLI-D16/4
Each
PHP12,096.30(exc. VAT)
Temporarily out of stock
ABB S302 MCB, 2P, 40A Curve C, 415V AC, 125V DC, 100 kA Breaking Capacity
  • RS Stock No. 200-756
  • Mfr. Part No. 2CDS382001R0404
Each
PHP19,545.70(exc. VAT)
Temporarily out of stock
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 4P 125A, Fixed Mount
  • RS Stock No. 232-0257
  • Mfr. Part No. 1SDA067427R1 XT1N 160 TMD 125A FF
Each
PHP43,303.54(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200 M UC MCB, 4P, 16A Curve K, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS Stock No. 204-430
  • Mfr. Part No. 2CDS274061R0467
Each
PHP46,153.97(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 15A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 147-603
  • Mfr. Part No. 3VA5195-1MU31-0AA0
Each
PHP34,278.32(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200 M UC MCB, 3P, 40A Curve K, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS Stock No. 202-955
  • Mfr. Part No. 2CDS273061R0557
Each
PHP39,393.01(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200 M UC MCB, 3P, 63A Curve K, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS Stock No. 202-958
  • Mfr. Part No. 2CDS273061R0607
Each
PHP53,556.90(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 2P 110A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 147-255
  • Mfr. Part No. 3VA5211-7ED61-0AA0
Each
PHP87,007.70(exc. VAT)
Temporarily out of stock
Eaton 800A Bolted Tag Fuse, 415V ac, 92mm
  • RS Stock No. 182-1344
  • Mfr. Part No. 800SJ28
Each
PHP19,367.72(exc. VAT)
Temporarily out of stock
Schurter SMD Non Resettable Fuse 3.15A, 250 V ac, 125V dc
  • RS Stock No. 876-1949P
  • Mfr. Part No. 3404.2471.22
Each (Supplied on a Reel)
PHP64.798(exc. VAT)
In Stock
Eaton PC Board Non Resettable Fuse, Radial 100mA, 250V ac
  • RS Stock No. 169-9494
  • Mfr. Part No. SR-5-100MA-BK
Each (In a Bag of 200)
PHP65.838(exc. VAT)
Temporarily out of stock
Phoenix Contact Thermal Magnetic Circuit Breaker - TMC 2 Pole 250V ac Voltage Rating DIN Rail, 500mA Current Rating
  • RS Stock No. 135-514
  • Mfr. Part No. 0914947
1 Pack of 3
PHP29,818.36(exc. VAT)
In Stock
ABB RCBO, 10A Current Rating, 2P Poles, 10mA Trip Sensitivity, System Pro M Compact Range
  • RS Stock No. 201-6961
  • Mfr. Part No. 2CSR255180R0104
Each
PHP13,094.68(exc. VAT)
In Stock
Schneider Electric Resi9 R9PF MCB, 3P, 10A, 400V AC, 3000 A Breaking Capacity
  • RS Stock No. 276-8966
  • Mfr. Part No. R9PFC710
Each
PHP7,797.95(exc. VAT)
In Stock
Eaton 2A Resettable Fuse, 6V
  • RS Stock No. 225-8248
  • Mfr. Part No. PTSLR12066V200
1 Reel of 2500
PHP48,599.92(exc. VAT)
Temporarily out of stock
Eaton Undervoltage Release for use with Circuit Breaker
  • RS Stock No. 282-7134
  • Mfr. Part No. 284387 NZM1-XUHIV20KL24DC
Each
PHP14,503.33(exc. VAT)
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