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

153 of 999+
In Stock
Eaton MCB, 1+N, 10A Curve C
  • RS Stock No. 230-1102
  • Mfr. Part No. 109128 PLGC4-C10/1N
Each
TWD430.00(exc. GST)
Temporarily out of stock
ABB System Pro M Compact S300P MCB, 4P, 10A Curve K, 415V AC, 25 kA Breaking Capacity
  • RS Stock No. 200-101
  • Mfr. Part No. 2CDS384001R0427
Each
TWD16,454.00(exc. GST)
In Stock
Eaton Shunt Release Shunt trip for use with PKE, Shunt release PKZ0(4)
  • RS Stock No. 240-2876
  • Mfr. Part No. 199336 A-PKZ0(24VDC)-PI
Each
TWD2,132.00(exc. GST)
Temporarily out of stock
ABB S802C MCB, 2P, 10A Curve D, 415V AC, 25 kA Breaking Capacity
  • RS Stock No. 141-062
  • Mfr. Part No. 2CCS882001R0101
Each
TWD12,768.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 800A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 257-532
  • Mfr. Part No. 3VA5580-6EC46-2AA0
Each
TWD267,052.00(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 4kA Ekip Hi-Touch LSI, 3 channels
  • RS Stock No. 259-3343
  • Mfr. Part No. 1SDA071249R1
Each
TWD1,250,378.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 125A, Breaking Capacity 70 kA
  • RS Stock No. 210-1623
  • Mfr. Part No. 3VA1112-6MH32-0AA0
Each
TWD30,043.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 1P 20A, Breaking Capacity 36 kA, DIN Rail Mount
  • RS Stock No. 271-9819
  • Mfr. Part No. 3VA1120-4ED12-0AA0
Each
TWD7,028.00(exc. GST)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 400A, Breaking Capacity 5 kA, Withdrawable
  • RS Stock No. 231-402
  • Mfr. Part No. 113535 NZMN3-4-A400/250-AVE
Each
TWD128,047.00(exc. GST)
In Stock
Better World
ABB System Pro M Compact S200 MCB, 1P, 6A Curve K, 253V AC, 72V DC, 6 kA Breaking Capacity
  • RS Stock No. 514-0125
  • Mfr. Part No. 2CDS251001R0377 S201-K6
Each
TWD1,038.00(exc. GST)
Temporarily out of stock
Eaton xE?ect - FRCmM-NA RCCB, 25A, 2 Pole, 30mA, 240/415V ac
  • RS Stock No. 120-294
  • Mfr. Part No. 167119 FRCMM-25/2/003-G/A-NA
Each
TWD7,366.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 63A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 270-3915
  • Mfr. Part No. 3VA2063-8KQ42-0AA0
Each
TWD97,230.00(exc. GST)
In Stock
Better World
Schneider Electric Acti 9 iC60H MCB, 3P, 2A Curve D, 440V AC, 100 → 133V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3559
  • Mfr. Part No. A9F55302
Each
TWD5,118.00(exc. GST)
Temporarily out of stock
Siemens SENTRON Interlock for use with 3VA51-54, 3VA61-64
  • RS Stock No. 161-610
  • Mfr. Part No. 3VA9078-0VM10
Each
TWD15,977.00(exc. GST)
In Stock
Hager 3 Phase Busbar
  • RS Stock No. 144-4832
  • Mfr. Part No. KB463A
Each
TWD2,035.00(exc. GST)
Temporarily out of stock
Siemens SENTRON Connection Unit for use with Circuit Breaker 3WL10 / 3VA27
  • RS Stock No. 266-571
  • Mfr. Part No. 3VW9011-0AN74
Each
TWD35,786.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 150A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 147-987
  • Mfr. Part No. 3VA5215-7GF41-2AA0
Each
TWD93,554.00(exc. GST)
Temporarily out of stock
Eaton Adapter Kit for use with N4
  • RS Stock No. 259-531
  • Mfr. Part No. 285611 N4-XAS12-1600
Each
TWD30,460.00(exc. GST)
Temporarily out of stock
ABB SMISSLINE TP MCB, 2P, 8A Curve K, 415V AC
  • RS Stock No. 246-2585
  • Mfr. Part No. 2CCS572001R0407
Each
TWD4,017.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 160A, Breaking Capacity 15 kA, Fixed Mount
  • RS Stock No. 341-212
  • Mfr. Part No. C25F6TM160
Each
TWD97,187.00(exc. GST)
1
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