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

306 of 999+
In Stock
Better World
Schneider Electric iC60 RCD, 63A
  • RS Stock No. 734-9706
  • Mfr. Part No. A9V19463
Each
TWD22,724.00(exc. GST)
Temporarily out of stock
Lovato ModuLo P1MB MCB, 4P, 10A Curve B, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 825-5918
  • Mfr. Part No. P1MB4PB10
Each
TWD4,893.00(exc. GST)
In Stock
Siemens SENTRON 3VA9 Rotary Operator for use with 3VA1 250
  • RS Stock No. 218-1838
  • Mfr. Part No. 3VA9257-0GK00
Each
TWD3,400.00(exc. GST)
In Stock
Lovato ModuLo P1MB MCB, 3P, 25A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 825-5845
  • Mfr. Part No. P1MB3PC25
Each
TWD2,735.00(exc. GST)
In Stock
Lovato ModuLo P1MB MCB, 1+N, 2A Curve C, 230V AC, 60V DC, 6 kA Breaking Capacity
  • RS Stock No. 825-5504
  • Mfr. Part No. P1MB1NC02
Each
TWD2,399.00(exc. GST)
Temporarily out of stock
Eaton RCCB, 40A, 2 Pole, 300mA, Type AC, 230V ac
  • RS Stock No. 227-0718
  • Mfr. Part No. 264282 PFGM-40/2/03
Each
TWD3,016.00(exc. GST)
Temporarily out of stock
Lovato ModuLo P1MB MCB, 1P, 40A Curve C, 230V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 825-5618
  • Mfr. Part No. P1MB1PC40
Each
TWD533.00(exc. GST)
In Stock
Lovato ModuLo P2MB MCB, 1P, 80A Curve C, 230V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 825-6147
  • Mfr. Part No. P2MB1PC080
Each
TWD2,776.00(exc. GST)
Temporarily out of stock
Siemens SENTRON Cover Frame for use with 3VA53/54, 3VA63/64
  • RS Stock No. 161-954
  • Mfr. Part No. 3VA9373-0SB10
Each
TWD2,088.00(exc. GST)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 40A, Breaking Capacity 5 kA, Plug In
  • RS Stock No. 230-391
  • Mfr. Part No. 113367 NZMH2-4-A40-SVE
Each
TWD32,299.00(exc. GST)
In Stock
Better World
Schneider Electric RCBO, 16A Current Rating, 3P+N Poles, 300mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 238-3310
  • Mfr. Part No. A9DP7716
Each
TWD19,055.00(exc. GST)
Temporarily out of stock
Eaton xEffect MCB, 3P, 1A Curve D, 240 → 415V AC, 10 kA Breaking Capacity
  • RS Stock No. 847-3471
  • Mfr. Part No. 278881 FAZ-D1/3
Each
TWD4,199.00(exc. GST)
Temporarily out of stock
Lovato ModuLo P1MB MCB, 1P, 25A Curve C, 230V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 825-5605
  • Mfr. Part No. P1MB1PC25
Each
TWD592.00(exc. GST)
In Stock
Eaton xEffect MCB, 1P, 40A Curve B, 240V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 922-6989
  • Mfr. Part No. 278539 FAZ-B40/1
Each
TWD990.00(exc. GST)
In Stock
Legrand DX Range DX3 MCB, 2A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 731-9673
  • Mfr. Part No. 4 076 93
Each
TWD5,008.00(exc. GST)
In Stock
Better World
Schneider Electric Acti9 iIG40 RCCB, 40A, 1+N Pole, 300mA, Type AC, 220 → 240V ac
  • RS Stock No. 191-6128
  • Mfr. Part No. A9R77640
Each
TWD6,763.00(exc. GST)
Temporarily out of stock
Eaton xEffect MCB, 3+N, 1A Curve D
  • RS Stock No. 230-1003
  • Mfr. Part No. 177470 FAZ6-D1/3N
Each
TWD6,413.00(exc. GST)
Temporarily out of stock
Lovato ModuLo P1MB MCB, 3P, 20A Curve B, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 825-5807
  • Mfr. Part No. P1MB3PB20
Each
TWD3,039.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric iID RCCB, 40A, 2 Pole, 300mA
  • RS Stock No. 734-9346
  • Mfr. Part No. A9R14240
Each
TWD7,235.00(exc. GST)
In Stock
Eaton xEffect MCB, 2P, 25A Curve D, 240 → 415V AC, 10 kA Breaking Capacity
  • RS Stock No. 847-3550
  • Mfr. Part No. 278785 FAZ-D25/2
Each
TWD2,143.00(exc. GST)
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