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

37646 Products showing for Circuit Breakers

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1 of 999+
In Stock
ABB 16 Configured for Split Load Steel Consumer Unit, 100A, BS EN 61009, BS EN 60439-3, BS EN 60898 IP30 Housemaster
  • RS Stock No. 453-996
  • Mfr. Part No. 1SKB118142C6001
Subtotal (1 unit)
TWD10,603.00(exc. GST)
TWD10,603.00/unit
In Stock
Siemens Connection Plug for use with 3RV2 Series
  • RS Stock No. 755-2965
  • Mfr. Part No. 3RV2917-5CA00
Subtotal (1 unit)
TWD416.00(exc. GST)
TWD416.00/unit
In Stock
RS Better World
ABB ComPact Home SH200 Miniature Circuit Breaker, 2-Pole, 16A, Type C, 400V ac AC, 400 V dc DC, 6 kA Breaking Capacity
  • RS Stock No. 231-9656
  • Mfr. Part No. 2CDS212001R0164 SH202-C 16
Subtotal (1 box of 1 unit)
TWD1,620.00(exc. GST)
TWD1,620.00/box
In Stock
RS Better World
Siemens SENTRON 5SY Miniature Circuit Breaker, 1-Pole, 2A, Type A, 400V ac AC, 10 kA Breaking Capacity
  • RS Stock No. 232-2282
  • Mfr. Part No. 5SY4102-5
Subtotal (1 unit)
TWD2,145.00(exc. GST)
TWD2,145.00/unit
In Stock
Schneider Electric Acti9 iID Series Residual Current Circuit Breaker, 40A, 2-Pole, 300 mA, Type B-SI, 10 kA 230V ac
  • RS Stock No. 655-453
  • Mfr. Part No. A9Z64240
Subtotal (1 unit)
TWD63,609.00(exc. GST)
TWD63,609.00/unit
In Stock
Okaya Electric Industries 1 Phase Surge Protector, 5 kA, Surface
  • RS Stock No. 190-2017
  • Mfr. Part No. LV480DI-Q4
Subtotal (1 unit)
TWD1,642.00(exc. GST)
TWD1,642.00/unit
In Stock
Schneider Electric Acti9 Connector Monoconnect for use with Acti 9/Multi 9, Horizontal Comb Busbar for 18 mm Pitch
  • RS Stock No. 806-7405
  • Mfr. Part No. A9XPCM04
Subtotal (1 unit)
TWD1,995.00(exc. GST)
TWD1,995.00/unit
In Stock
Hager NFN Miniature Circuit Breaker, 2-Pole, 6A, Type C, 400V ac AC, 10 kA Breaking Capacity
  • RS Stock No. 144-4711
  • Mfr. Part No. NFN206
Subtotal (1 unit)
TWD4,568.00(exc. GST)
TWD4,568.00/unit
Stocked by manufacturer
RS Better World
Schneider Electric, ComPact NSX, ComPacT NSX Molded Case Circuit Breaker 3-Pole 50A
  • RS Stock No. 254-6271
  • Mfr. Part No. C103MA050
Subtotal (1 unit)
TWD8,050.00(exc. GST)
TWD8,050.00/unit
Stocked by manufacturer
Schneider Electric Acti9 iID Series Residual Current Circuit Breaker, 63A, 2-Pole, 30 mA, Type A-SI, 1500 A 240V ac
  • RS Stock No. 276-8739
  • Mfr. Part No. A9R31263
Subtotal (1 unit)
TWD18,410.00(exc. GST)
TWD18,410.00/unit
In Stock
Eaton xEffect FAZ Miniature Circuit Breaker, 1-Pole, 1A, Type C, 240V ac AC, 48 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 922-6995
  • Mfr. Part No. 278546 FAZ-C1/1
Subtotal (1 unit)
TWD1,794.00(exc. GST)
TWD1,794.00/unit
Stocked by manufacturer
ABB System Pro M Compact S300P Miniature Circuit Breaker, 2-Pole, 4A, Type Z, 415V ac AC, 125 V dc DC, 25 kA Breaking
  • RS Stock No. 200-917
  • Mfr. Part No. 2CDS382001R0338
Subtotal (1 unit)
TWD13,182.00(exc. GST)
TWD13,182.00/unit
Stocked by manufacturer
Legrand DX3 DX3 - 25 kA Circuit Breaker, 1-Pole, 16A, Type C, 230V ac AC, 400 V dc DC, 25 kA Breaking Capacity
  • RS Stock No. 266-1341
  • Mfr. Part No. 409755
Subtotal (1 unit)
TWD3,401.00(exc. GST)
TWD3,401.00/unit
In Stock
RS Better World
ABB System Pro M Compact S200 Miniature Circuit Breaker, 2-Pole, 10A, Type K, 400V ac AC, 6 kA Breaking Capacity
  • RS Stock No. 746-7999
  • Mfr. Part No. 2CDS252001R0427 S202-K10
Subtotal (1 unit)
TWD2,606.00(exc. GST)
TWD2,606.00/unit
Stocked by manufacturer
ABB System Pro M Compact SU200 M Miniature Circuit Breaker, 1-Pole, 20A, Type C, 277V ac AC, 277 V dc DC, 15 kA Breaking
  • RS Stock No. 231-9712
  • Mfr. Part No. 2CDS271337R0204 SU201M-C20
Subtotal (1 box of 1 unit)
TWD1,947.00(exc. GST)
TWD1,947.00/box
Currently unavailable
Lovato RCBO, 6A Current Rating, 30 mA Trip Sensitivity, Type C, P1RB Range
  • RS Stock No. 825-6021
  • Mfr. Part No. P1RB1NC06AC030
Subtotal (1 unit)
TWD2,873.00(exc. GST)
TWD2,873.00/unit
Limited stock
RS Better World
Siemens SENTRON 5SY4 Miniature Circuit Breaker, 2-Pole, 6A, Type C, 400V ac AC, 60 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 772-1296
  • Mfr. Part No. 5SY4206-7
Subtotal (1 unit)
TWD3,839.00(exc. GST)
TWD3,839.00/unit
In Stock
RS Better World
ABB System Pro M Compact System Pro M Compact Miniature Circuit Breaker, 1-Pole, 4A, Type C, 253V ac AC, 72 V dc DC, 10
  • RS Stock No. 535-4122
  • Mfr. Part No. 2CDS271001R0044 S201M-C4
Subtotal (1 unit)
TWD1,366.00(exc. GST)
TWD1,366.00/unit
In Stock
Eaton xPole PXL Miniature Circuit Breaker, 2-Pole, 10A, Type B, 400V ac AC, 48 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 490-068
  • Mfr. Part No. 236227 PXL-B10/2
Subtotal (1 unit)
TWD1,651.00(exc. GST)
TWD1,651.00/unit
In Stock
Phoenix Contact Copper CLIPLINE FBS Busbar, 6.2 mm Pitch
  • RS Stock No. 627-3406
  • Mfr. Part No. 3030271
Subtotal (1 pack of 5 units)
TWD718.00(exc. GST)
TWD143.60/unit
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