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

292 of 999+
Temporarily out of stock
ABB RCBO, 20A Current Rating, 4P Poles, Type C
  • RS Stock No. 237-5118
  • Mfr. Part No. 2CSR254101R1204
Each
TWD14,717.00(exc. GST)
Temporarily out of stock
ABB RCBO, 6A Current Rating, 1P Poles, Type C
  • RS Stock No. 237-5243
  • Mfr. Part No. 2CSR275151R0064
Each
TWD5,968.00(exc. GST)
Temporarily out of stock
ABB RCBO, 50A Current Rating, 4P Poles, Type K
  • RS Stock No. 237-5128
  • Mfr. Part No. 2CSR254101R1507
Each
TWD29,033.00(exc. GST)
Temporarily out of stock
Better World
ABB, XT2V MCCB 4P 125A, Fixed Mount
  • RS Stock No. 236-7450
  • Mfr. Part No. 1SDA067712R1 XT2V 160 TMA 125A 3P+N FF
Each
TWD45,331.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 25A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 211-3762
  • Mfr. Part No. 3VA2025-6HL32-0AA0
Each
TWD27,561.00(exc. GST)
Temporarily out of stock
Phoenix Contact Surge Protector, 40A, 1000V dc
  • RS Stock No. 493-223
  • Mfr. Part No. 1153124
Each
TWD17,302.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric iID RCD, 40A, 100mA
  • RS Stock No. 776-3691
  • Mfr. Part No. A9R12240
Each
TWD8,620.00(exc. GST)
Temporarily out of stock
ABB Cable for use with Miniature Circuit Breakers
  • RS Stock No. 250-4729
  • Mfr. Part No. 2CDL200301R1006
Each
TWD420.00(exc. GST)
Temporarily out of stock
ETA Busbar, 24V dc, 59.5mm Pitch
  • RS Stock No. 723-4875
  • Mfr. Part No. X222.611.59 BUSBAR (PACK OF 10)
Each (In a Pack of 10)
TWD3,383.80(exc. GST)
Temporarily out of stock
Siemens SENTRON Motor Mechanism
  • RS Stock No. 277-0746
  • Mfr. Part No. 3WA9111-0AF05
Each
TWD57,747.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric RCBO, 32A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 238-3356
  • Mfr. Part No. A9DX2632
Each
TWD16,814.00(exc. GST)
In Stock
Better World
Schneider Electric Multi 9 C60SP MCB, 2P, 2A Curve D, 440V AC, 125V DC, 15 kA Breaking Capacity
  • RS Stock No. 211-2392
  • Mfr. Part No. M9F23202
Each
TWD3,356.00(exc. GST)
Temporarily out of stock
ABB System Pro M Compact S200 M UC MCB, 3P, 50A Curve B, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS Stock No. 201-050
  • Mfr. Part No. 2CDS273061R0505
Each
TWD26,772.00(exc. GST)
Temporarily out of stock
Better World
ABB, Tmax XT MCCB 3P 3.2A, Fixed Mount
  • RS Stock No. 236-7375
  • Mfr. Part No. 1SDA067587R1 XT2H 160 TMD 3.2A FF
Each
TWD14,954.00(exc. GST)
Temporarily out of stock
ABB, Tmax MCCB 3P 320A, Fixed Mount
  • RS Stock No. 237-5961
  • Mfr. Part No. 1SDA054320R1 T5N400 FF PR222-LSI 320A
Each
TWD45,892.00(exc. GST)
In Stock
Lovato ModuLo P2MB MCB, 3P, 100A Curve C, 230V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 825-6163
  • Mfr. Part No. P2MB3PC100
Each
TWD4,654.00(exc. GST)
In Stock
ABB Tmax XT Undervoltage Release for use with XT1, XT4
  • RS Stock No. 237-6057
  • Mfr. Part No. 1SDA066392R1 UVR XT1..4 220-240VAC/DC
Each
TWD5,145.00(exc. GST)
In Stock
Schneider Electric Acti 9 MCB, 3P, 2.5A Curve K
  • RS Stock No. 247-1715
  • Mfr. Part No. 21106
Each
TWD5,990.00(exc. GST)
Temporarily out of stock
ABB S803S MCB, 3P, 63A, KM, 690V AC, 50 kA Breaking Capacity
  • RS Stock No. 140-712
  • Mfr. Part No. 2CCS863001R0596
Each
TWD32,218.00(exc. GST)
Limited stock
Legrand DX3 RCD, 63A, 1+N Pole, 300mA, Type AC
  • RS Stock No. 732-0042
  • Mfr. Part No. 4 115 26
Each
TWD11,556.00(exc. GST)
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