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

251 of 999+
Temporarily out of stock
Siemens Sentron Remote Controlled Mechanism for use with Miniature Circuit Breakers
  • RS Stock No. 187-5155
  • Mfr. Part No. 5ST3054
Each
TWD13,469.00(exc. GST)
Temporarily out of stock
SENTRON Terminal Cover for use with 3VA53/54, 3VA63/64 Series
  • RS Stock No. 263-534
  • Mfr. Part No. 3VA9471-0WF31
Each
TWD3,123.00(exc. GST)
Temporarily out of stock
Phoenix Contact Thermal Circuit Breaker - TCP Single Pole 32V dc Voltage Rating Base Mounting, 20A Current Rating
  • RS Stock No. 557-951
  • Mfr. Part No. 1499944
1 Pack of 100
TWD30,040.00(exc. GST)
Temporarily out of stock
Schneider Electric Power Pact Mounting Adapter for use with H-Frame Mechanical Lugs, J-Frame Mechanical Lugs
  • RS Stock No. 212-0286
  • Mfr. Part No. S37446
Each
TWD5,356.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 220A, Fixed Mount
  • RS Stock No. 260-7969
  • Mfr. Part No. C25R36M220
Each
TWD155,071.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 32A, Fixed Mount
  • RS Stock No. 260-7589
  • Mfr. Part No. C11F3TM032L
Each
TWD21,359.00(exc. GST)
Temporarily out of stock
Eaton RCBO, 20A Current Rating, 2P Poles, 10mA Trip Sensitivity, Type A, Type C, FRBdM Range
  • RS Stock No. 121-002
  • Mfr. Part No. 168301 FRBDM-C20/2/001-G/A
Each
TWD8,535.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric
  • RS Stock No. 219-9032
  • Mfr. Part No. AK5PC33L
Each (In a Pack of 6)
TWD1,389.50(exc. GST)
In Stock
ETA Thermal Circuit Breaker - 3120-N 5 Pole 50 V DC, 240 V AC Voltage Rating, 12A Current Rating
  • RS Stock No. 210-2112
  • Mfr. Part No. 3120-N554-P7T1-W19DG4-12A
Each
TWD1,200.00(exc. GST)
Limited stock
Legrand DX Range DNX3 MCB, 20A Curve C, 4.5 kA Breaking Capacity
  • RS Stock No. 731-9455
  • Mfr. Part No. 4 067 75
Each
TWD923.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 25A, Fixed Mount
  • RS Stock No. 260-7616
  • Mfr. Part No. C11H3TM025L
Each
TWD27,887.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 40A, Fixed Mount
  • RS Stock No. 260-7470
  • Mfr. Part No. C10V42D040
Each
TWD72,635.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 250A, Fixed Mount
  • RS Stock No. 260-7930
  • Mfr. Part No. C25L4
Each
TWD115,591.00(exc. GST)
Temporarily out of stock
Schneider Electric R9R RCCB, 25A, 2 Pole, 10mA, Type A, 230V ac
  • RS Stock No. 212-340
  • Mfr. Part No. R9R26225
Each
TWD4,678.00(exc. GST)
Temporarily out of stock
Siemens SENTRON Busbar
  • RS Stock No. 265-638
  • Mfr. Part No. 8US1922-2DA00
1 Pack of 5
TWD5,651.00(exc. GST)
Temporarily out of stock
Schneider Electric Resi9 Electronic Circuit Breaker 32A Resi9, Clip-On Type C
  • RS Stock No. 429-450
  • Mfr. Part No. R9PDCS32
Each
TWD26,037.00(exc. GST)
Temporarily out of stock
ABB Tmax XT Trip Unit for use with XT2
  • RS Stock No. 236-7266
  • Mfr. Part No. 1SDA067347R1 Ekip LSIG In=25A XT2 4p
Each
TWD55,398.00(exc. GST)
Temporarily out of stock
Siemens, Sentron MCCB Molded Case Circuit Breaker 3P 1kA, Breaking Capacity 35 kA
  • RS Stock No. 249-234
  • Mfr. Part No. 3VA6610-6HN32-0AA0
Each
TWD270,117.00(exc. GST)
Temporarily out of stock
ABB Tmax XT Conversion Kit for use with Circuit Breaker
  • RS Stock No. 231-9354
  • Mfr. Part No. 1SDA104707R1 P MP XT5 400A 3p
Each
TWD4,966.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 800A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 270-4849
  • Mfr. Part No. 3VA2580-6HK42-0AA0
Each
TWD449,499.00(exc. GST)
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