Circuit Breakers

Having an effective and well-designed circuit protection system in every building is vital. It not only protects machinery and equipment from costly damage or even worse an electrical fire, but good circuit protection also ensures people are safe too.

Here, at RS we stock an extensive range of high-quality products within our circuit breaker range. They include various types of protection devices as well as consumer units, distribution boards and accessories. Whether you are designing and building a new system or maintaining an old one we have everything you need, providing the perfect end-to-end solution.

What are the different types of circuit breakers?

RCBO Breakers

RCBO stands for Residual Current Circuit Breaker with Over Current protection. Installed in consumer units they protect from short circuits, overload current and residual current as they combine all the functions of an MCB and an RCCB.

RCCB Breakers

RCCB stands for Residual Current Circuit Breaker. They are designed to quickly disconnect any circuit as soon as current leaks to the earthing wire. RCCBs are also effective in protecting from electrocution or shock from direct contact.

MCB Breakers

MCB stands for Miniature Circuit Breaker. They are designed to protect an electric circuit from overcurrent only. They do not safeguard people from electric shock caused by earth leakage.

MCCB Breakers

MCCB stands for Moulded Case Circuit Breaker. They are another type of electrical protection device used in higher current rating applications where an MCB would not suffice. An MCCB protects against overload and short circuit faults. With its high breaking capacity and a wider range of current ratings, MCCBs are typically found in industrial systems rather than domestic systems.

Busbar Feed & Tap-Off Units
Busbar Feed & Tap-Off Units
Busbar Trunking
Busbar Trunking
Busbar Trunking Accessories
Busbar Trunking Accessories
Busbars
Busbars
Circuit Breaker Accessories
Circuit Breaker Accessories
Circuit Trips
Circuit Trips
Consumer Units
Consumer Units
Distribution Boards
Distribution Boards
Electronic Circuit Breakers
Electronic Circuit Breakers
Energy Monitoring Devices
Energy Monitoring Devices
MCBs
MCBs
MCCBs
MCCBs
RCBOs
RCBOs
RCCBs
RCCBs
Surge Protection Devices
Surge Protection Devices
Thermal Breakers
Thermal Breakers

35874 Products showing for Circuit Breakers

1761 of 999+
In Stock
Eaton xEffect MCB, 2P, 16A Curve D, 240 → 415V AC, 10 kA Breaking Capacity
  • RS Stock No. 847-3522
  • Mfr. Part No. 102190 FAZ-D16/2-NA
Each
TWD3,181.00(exc. GST)
Temporarily out of stock
Eaton xEffect FAZ MCB, 2P, 7A Curve C, 415V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 248-616
  • Mfr. Part No. 102205 FAZ-C7/2-RT
Each
TWD6,169.00(exc. GST)
Temporarily out of stock
Siemens SIRIUS Enclosure for use with 3SE7
  • RS Stock No. 161-295
  • Mfr. Part No. 3SE7310-1AE04
Each
TWD38,315.00(exc. GST)
Temporarily out of stock
ABB System Pro M Compact SU200 MR MCB, 4P, 35A Curve K, 400V AC, 15 kA Breaking Capacity
  • RS Stock No. 200-722
  • Mfr. Part No. 2CDS274347R0547
Each
TWD28,437.00(exc. GST)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 2.5kA 1SDA07, 3 channels
  • RS Stock No. 259-3196
  • Mfr. Part No. 1SDA071062R1
Each
TWD375,943.00(exc. GST)
Temporarily out of stock
ABB System Pro M Compact S200M MCB, 1P, 40A Curve C, 253V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 535-4194
  • Mfr. Part No. 2CDS271001R0404 S201M-C40
Each
TWD862.00(exc. GST)
Temporarily out of stock
Eaton xEffect FAZ MCB, 1P, 3A Curve K, 230V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 256-915
  • Mfr. Part No. 278593 FAZ-K3/1
Each
TWD1,609.00(exc. GST)
Temporarily out of stock
ABB Tmax XT Extended Front Terminal for use with Circuit Breaker
  • RS Stock No. 232-0232
  • Mfr. Part No. 1SDA066898R1 ES XT3 4PCS
Each
TWD2,069.00(exc. GST)
Temporarily out of stock
Better World
ABB System Pro M Compact S200 MCB, 4P, 13A Curve B
  • RS Stock No. 237-3316
  • Mfr. Part No. 2CDS254001R0135 S204-B13
Each
TWD10,176.00(exc. GST)
Temporarily out of stock
Eaton xEffect FAZ MCB, 1+N, 15A Curve C, 240V AC, 60V DC, 7.5 kA Breaking Capacity
  • RS Stock No. 254-189
  • Mfr. Part No. 241030 FAZT-C15/1N
Each
TWD3,272.00(exc. GST)
In Stock
Better World
Siemens RCBO, 10A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type B, Sentron Range
  • RS Stock No. 243-6152
  • Mfr. Part No. 5SU1324-6KX10
Each
TWD6,963.00(exc. GST)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 250A, Breaking Capacity 5 kA, Plug In
  • RS Stock No. 239-830
  • Mfr. Part No. 191638 NZMN2-4-VX250/VAR-SVE
Each
TWD83,449.00(exc. GST)
Temporarily out of stock
ABB Tmax XT Cover for use with Tmax XT
  • RS Stock No. 231-9370
  • Mfr. Part No. 1SDA105031R1 HTC-ES XT5 3p
Each
TWD2,763.00(exc. GST)
Temporarily out of stock
Eaton RCBO, 16A Current Rating, 3P Poles, 100mA Trip Sensitivity, Type A, Type D, FRBmM Range
  • RS Stock No. 123-301
  • Mfr. Part No. 170752 FRBMM-D16/3/01-A
Each
TWD7,386.00(exc. GST)
Temporarily out of stock
Siemens ALPHA Distribution Board
  • RS Stock No. 272-0258
  • Mfr. Part No. 8GK1031-5KK10
Each
TWD13,031.00(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 800A Ekip G Hi-Touch LSIG, 4 channels
  • RS Stock No. 259-3448
  • Mfr. Part No. 1SDA071390R1
Each
TWD414,537.00(exc. GST)
Temporarily out of stock
Socomec 1 Phase Industrial Surge Protector, 40kA
  • RS Stock No. 224-2518
  • Mfr. Part No. 49821424
Each
TWD12,997.00(exc. GST)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 2.5kA Ekip Dip LSI, 3 channels
  • RS Stock No. 259-3204
  • Mfr. Part No. 1SDA071072R1
Each
TWD464,867.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric TeSys Thermal Circuit Breaker - TeSyS GV 3 Pole 690V ac Voltage Rating, 115A Current Rating
  • RS Stock No. 175-1499
  • Mfr. Part No. GV4P115N6
Each
TWD50,293.00(exc. GST)
Temporarily out of stock
ABB RCBO, 20A Current Rating, 1P Poles, Type C
  • RS Stock No. 237-5240
  • Mfr. Part No. 2CSR275051R3204
Each
TWD6,024.00(exc. GST)
1
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