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

23 of 999+
In Stock
Schneider Electric TeSys Thermal Circuit Breaker - GB2 2 Pole 277V ac Voltage Rating DIN Rail Mount, 2A Current Rating
  • RS Stock No. 312-3780
  • Mfr. Part No. GB2DB07
Each
TWD1,570.00(exc. GST)
In Stock
Better World
Schneider Electric Acti 9 iC60H MCB, 2P, 10A Curve C, 400V AC, 12 → 144V DC, 10 kA Breaking Capacity
  • RS Stock No. 734-9286
  • Mfr. Part No. A9F87210
Each
TWD5,392.00(exc. GST)
Temporarily out of stock
Lovato 1 Phase Surge Protector, 50kA
  • RS Stock No. 216-8298
  • Mfr. Part No. SG21PA300
Each
TWD3,290.00(exc. GST)
Temporarily out of stock
Lovato 3 Phase Surge Protector, 100kA
  • RS Stock No. 216-8289
  • Mfr. Part No. SA1B3NA320R
Each
TWD53,893.00(exc. GST)
In Stock
Better World
Schneider Electric Multi 9 C60N MCB, 3P, 32A Curve C, 10 kA Breaking Capacity
  • RS Stock No. 214-2073
  • Mfr. Part No. M9F11332
Each
TWD7,190.00(exc. GST)
In Stock
TE Connectivity Thermal Circuit Breaker - W28 Single Pole 32 V dc, 250V ac Voltage Rating, 4A Current Rating
  • RS Stock No. 782-6597
  • Mfr. Part No. W28-XQ1A-4
Each
TWD145.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 16A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 209-5063
  • Mfr. Part No. 3VA1196-5EF36-0AA0
Each
TWD17,861.00(exc. GST)
In Stock
Better World
Schneider Electric Compact Nsx, Compact Nsx Dc Connection Adapter for use with Compact Nsx 100/160/250
  • RS Stock No. 221-1186
  • Mfr. Part No. LV429307
Each
TWD1,426.00(exc. GST)
Limited stock
ETA ESX10 Electronic Circuit breaker 2A 24V ESX10-T, 1 channels , Plug-In Mounting
  • RS Stock No. 210-2132
  • Mfr. Part No. ESX10-TB-101-DC24V-2A-E
Each
TWD2,312.00(exc. GST)
In Stock
Schneider Electric RCBO, 16A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type A-SI, Acti9 Range
  • RS Stock No. 276-8719
  • Mfr. Part No. A9D27216
Each
TWD20,098.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 80A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 147-710
  • Mfr. Part No. 3VA5180-5EC31-1AA0
Each
TWD18,370.00(exc. GST)
Temporarily out of stock
ABB High Performance S800N MCB, 2P, 80A Curve B, 400V AC, 36 kA Breaking Capacity
  • RS Stock No. 435-526
  • Mfr. Part No. 2CCG001217R0001
Each
TWD7,524.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 63A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 270-4704
  • Mfr. Part No. 3VA2163-0MN32-0AA0
Each
TWD42,753.00(exc. GST)
Temporarily out of stock
Hager NQN MCB, 2P, 16A Curve B, 415V AC, 25 kA Breaking Capacity
  • RS Stock No. 597-861
  • Mfr. Part No. NQN216
Each
TWD7,140.00(exc. GST)
Temporarily out of stock
Hager NGN MCB, 3P, 10A, 400V AC, 10 Breaking Capacity
  • RS Stock No. 602-158
  • Mfr. Part No. NGN310
Each
TWD6,575.00(exc. GST)
In Stock
Better World
Schneider Electric Multi 9 C60SP MCB, 3P, 32A Curve C, 440V AC, 15 kA Breaking Capacity
  • RS Stock No. 211-2376
  • Mfr. Part No. M9F22332
Each
TWD4,765.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 1P 20A, Breaking Capacity 5 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-287
  • Mfr. Part No. 3VA5120-4ED11-0AA0
Each
TWD7,468.00(exc. GST)
In Stock
Siemens SENTRON 3VA9 Rotary Operator for use with 3VA15/25 1000
  • RS Stock No. 218-1868
  • Mfr. Part No. 3VA9687-0FK21
Each
TWD13,647.00(exc. GST)
Last RS stock
ABB RCCB, 10A, 2 Pole, 30mA, Type C, 240V ac
  • RS Stock No. 246-2379
  • Mfr. Part No. 2CCG001698R0001
Each
TWD9,408.00(exc. GST)
Temporarily out of stock
Siemens SENTRON Auxiliary Contact for use with 3VA4/5/6
  • RS Stock No. 272-0236
  • Mfr. Part No. 3VA9978-0AA13
Each
TWD2,811.00(exc. GST)
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