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

1730 of 999+
Phoenix Contact Thermal Circuit Breaker - CB TM2 2 Pole 80V dc Voltage Rating, 1A Current Rating
  • RS Stock No. 217-6366
  • Mfr. Part No. 2800869
Each
TWD3,084.00(exc. GST)
Murrelektronik Limited Electronic Circuit Breaker
  • RS Stock No. 123-6688
  • Mfr. Part No. 9000-41034-0100400
Each
TWD9,463.00(exc. GST)
Siemens SENTRON 5SY4 MCB, 2P, 2A, Type A, 230V AC, 60V DC, 35 kA Breaking Capacity
  • RS Stock No. 610-502
  • Mfr. Part No. 5SY4502-5
Each
TWD3,214.00(exc. GST)
Hager RCBO, 16A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type F
  • RS Stock No. 602-089
  • Mfr. Part No. ADF823F
Each
TWD13,182.00(exc. GST)
Better World
Siemens, SENTRON MCCB 3P 40A, Breaking Capacity 110 kA, Fixed Mount
  • RS Stock No. 270-3762
  • Mfr. Part No. 3VA2040-7HL36-0AA0
Each
TWD72,249.00(exc. GST)
Better World
Schneider Electric PrismaSeT Front Plate for use with PrismaSeT
  • RS Stock No. 272-7481
  • Mfr. Part No. LVS03203
Each
TWD1,211.00(exc. GST)
Better World
Schneider Electric RCBO, 20A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 238-3282
  • Mfr. Part No. A9DK1620
Each
TWD10,415.00(exc. GST)
Schneider Electric, PowerPact MCCB 3P 250A, Breaking Capacity 18 kA, DIN Rail Mount
  • RS Stock No. 428-702
  • Mfr. Part No. NJGF36250U53XTW
Each
TWD177,901.00(exc. GST)
Eaton xEffect FAZ MCB, 2P, 1.5A Curve D, 415V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 240-580
  • Mfr. Part No. 102219 FAZ-D1,5/2-RT
Each
TWD6,245.00(exc. GST)
Schneider Electric RCBO, 10A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type B, Easy9 Range
  • RS Stock No. 654-753
  • Mfr. Part No. EZ9TDA7610
Each
TWD7,692.00(exc. GST)
Better World
Siemens SENTRON Electronic Circuit Breaker 630A 3VA2, 3 channels
  • RS Stock No. 156-795
  • Mfr. Part No. 3VA2463-8JQ32-0AA0
Each
TWD205,162.00(exc. GST)
Schneider Electric, ComPacT MCCB 3P 630A, Fixed Mount
  • RS Stock No. 260-8197
  • Mfr. Part No. C63F3
Each
TWD108,669.00(exc. GST)
ABB Tmax XT Front Terminal for use with Tmax XT
  • RS Stock No. 237-6263
  • Mfr. Part No. 1SDA067176R1 FC CuAl 2x95 XT2 4PCS
Each
TWD6,992.00(exc. GST)
Eaton RCBO, 13A Current Rating, 4P Poles, 300mA Trip Sensitivity, Type A, Type D, FRBm6 Range
  • RS Stock No. 123-707
  • Mfr. Part No. 170968 FRBM6-D13/3N/03-A
Each
TWD8,986.00(exc. GST)
ABB System Pro M Compact S300P MCB, 3+N, 13A Curve C, 415V AC, 25 kA Breaking Capacity
  • RS Stock No. 200-335
  • Mfr. Part No. 2CDS383103R0134
Each
TWD21,378.00(exc. GST)
Mersen Surge Protector, 50kA, 1800V (Volts), DIN Rail Mount
  • RS Stock No. 361-609
  • Mfr. Part No. 44020400
Each
TWD5,075.00(exc. GST)
Better World
ABB Compact Home SH200 MCB, 3P, 16A Curve C, 440V AC, 6 kA Breaking Capacity
  • RS Stock No. 539-8352
  • Mfr. Part No. 2CDS213001R0164 SH203-C16
Each
TWD1,123.00(exc. GST)
Eaton xEffect FAZ MCB, 1+N, 3A Curve D, 230V AC, 15 kA Breaking Capacity
  • RS Stock No. 259-593
  • Mfr. Part No. 278687 FAZ-D3/1N
Each
TWD2,586.00(exc. GST)
Better World
Schneider Electric RCBO, 20A Current Rating, 3P+N Poles, 300mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 238-3331
  • Mfr. Part No. A9DS5720
Each
TWD20,122.00(exc. GST)
Siemens SENTRON Connection Unit
  • RS Stock No. 277-0799
  • Mfr. Part No. 3WA9111-0AR12
Each
TWD6,231.00(exc. GST)
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