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

1669 of 999+
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 1kA, Breaking Capacity 37 kA, Fixed Mount
  • RS Stock No. 259-062
  • Mfr. Part No. 271158 NZMH4-VE1000-NA
Each
TWD285,405.00(exc. GST)
ABB System Pro M Compact S300P MCB, 1+N, 20A, Type Z, 240V AC, 72V DC, 25 kA Breaking Capacity
  • RS Stock No. 200-735
  • Mfr. Part No. 2CDS381103R0488
Each
TWD7,099.00(exc. GST)
Better World
Schneider Electric, ComPacT New Generation Circuit breaker 3P 80A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 254-6280
  • Mfr. Part No. C10B3TM080
Each
TWD19,564.00(exc. GST)
Schneider Electric IKQ RCD, 80A, 4 Pole, 30mA, 400V ac
  • RS Stock No. 339-382
  • Mfr. Part No. SED80034
Each
TWD14,970.00(exc. GST)
Better World
ABB, XT2S MCCB 3P 80A, Fixed Mount
  • RS Stock No. 236-7474
  • Mfr. Part No. 1SDA067745R1 XT2S 160 TMG 80A FF
Each
TWD21,717.00(exc. GST)
Eaton RCBO, 40A Current Rating, 2P Poles, 300mA Trip Sensitivity, Type A, Type C, FRBm6 Range
  • RS Stock No. 123-272
  • Mfr. Part No. 170732 FRBM6-C40/2/03-A
Each
TWD6,688.00(exc. GST)
Sensata Airpax Airpax Thermal Circuit Breaker - IUGN6 Single Pole Panel Mount, 10A Current Rating
  • RS Stock No. 275-0281
  • Mfr. Part No. IUGN6-1-62-10.0
Each
TWD2,169.00(exc. GST)
Siemens SENTRON 3VA9 Rotary Operator for use with 3VA1 400/630, 3VA2 400/630
  • RS Stock No. 218-1857
  • Mfr. Part No. 3VA9467-0EK23
Each
TWD10,986.00(exc. GST)
ABB, Tmax XT MCCB 3P 0kA, Fixed Mount
  • RS Stock No. 237-6250
  • Mfr. Part No. 1SDA067128R1 RC Sel XT3 F
Each
TWD39,785.00(exc. GST)
Eaton Adapter Kit for use with NZM4
  • RS Stock No. 259-532
  • Mfr. Part No. 285614 NZM4-XAS12-1600
Each
TWD32,069.00(exc. GST)
Better World
ABB, Tmax XT MCCB 4P 80A, Fixed Mount
  • RS Stock No. 236-7448
  • Mfr. Part No. 1SDA067710R1 XT2V 160 TMA 80A FF
Each
TWD42,959.00(exc. GST)
Eaton BB-EV 1 Phase Busbar, 1000V, 17.8mm Pitch
  • RS Stock No. 244-227
  • Mfr. Part No. 168826 BB-EVF-10/1P-1MU
Each
TWD1,085.00(exc. GST)
Better World
Siemens RCBO, 16A Current Rating, 2P Poles, 300mA Trip Sensitivity, Sentron Range
  • RS Stock No. 225-8827
  • Mfr. Part No. 5SV1616-6KK16
Each
TWD5,661.00(exc. GST)
Schneider Electric 1 Phase Surge Arrester, 75kA, 1500V (Volts), Plug In Mount
  • RS Stock No. 438-848
  • Mfr. Part No. M9LC550
Each
TWD12,345.00(exc. GST)
Siemens SENTRON Sliding Contacts for use with 3VA13/14, 3VA23/24
  • RS Stock No. 274-009
  • Mfr. Part No. 3VA9368-0VF30
Each
TWD8,621.00(exc. GST)
Phoenix Contact Surge Protector, DIN Rail Mount
  • RS Stock No. 207-2779
  • Mfr. Part No. 2907878
Each
TWD3,232.00(exc. GST)
Better World
Siemens Sentron 5SY4 MCB, 4P, 20A Curve B, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 124-3147
  • Mfr. Part No. 5SY4420-6
Each
TWD3,749.00(exc. GST)
Better World
Siemens SENTRON Electronic Circuit Breaker 40A 3VA2, 4 channels
  • RS Stock No. 157-405
  • Mfr. Part No. 3VA2140-8HM46-0AA0
Each
TWD76,731.00(exc. GST)
Hager RCCB, 40A, 2 Pole, 30mA
  • RS Stock No. 144-4887
  • Mfr. Part No. CDC140F
Each
TWD8,557.00(exc. GST)
Eaton xEffect MCB, 1P, 160mA Curve C
  • RS Stock No. 230-0924
  • Mfr. Part No. 177397 FAZ6-C0,16/1
Each
TWD1,151.00(exc. GST)
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