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

147 of 999+
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 500A 3VA2, 3 channels
  • RS Stock No. 155-904
  • Mfr. Part No. 3VA2450-6KQ32-0AA0
Each
TWD169,053.00(exc. GST)
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 400A 3VA2, 3 channels
  • RS Stock No. 156-628
  • Mfr. Part No. 3VA2440-8JQ32-0AA0
Each
TWD190,800.00(exc. GST)
In Stock
Schurter Thermal Circuit Breaker - T12 Single Pole 240V ac Voltage Rating, 4A Current Rating
  • RS Stock No. 284-6088
  • Mfr. Part No. 4410.0076
Each
TWD805.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 500A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 257-618
  • Mfr. Part No. 3VA5450-6GF41-0AA0
Each
TWD155,557.00(exc. GST)
In Stock
ABB S801S MCB, 1P, 16A, UC-B, 250V DC, 50 kA Breaking Capacity
  • RS Stock No. 140-430
  • Mfr. Part No. 2CCS861001R1165
Each
TWD7,821.00(exc. GST)
Temporarily out of stock
ABB Mounting Plate for use with Three-Pole XT1
  • RS Stock No. 192-0808
  • Mfr. Part No. 1SDA066652R1
Each
TWD3,117.00(exc. GST)
Temporarily out of stock
ABB S800S MCB, 2P, 40A Curve C, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 141-241
  • Mfr. Part No. 2CCS862001R0404
Each
TWD17,567.00(exc. GST)
In Stock
Siemens 230V ac Undervoltage Release Circuit Trip for use with 3RV2 Series Circuit Breakers
  • RS Stock No. 706-1939
  • Mfr. Part No. 3RV2902-1AP0
Each
TWD2,795.00(exc. GST)
Temporarily out of stock
Hager CDH RCCB, 40A, 1P+N Pole, 30mA, Type A-HI, 230V ac
  • RS Stock No. 597-912
  • Mfr. Part No. CDH140F
Each
TWD9,276.00(exc. GST)
In Stock
Better World
Schneider Electric Multi 9 C60SP MCB, 3P, 25A Curve D, 440V AC, 15 kA Breaking Capacity
  • RS Stock No. 211-2409
  • Mfr. Part No. M9F23425
Each
TWD8,701.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 400A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 249-411
  • Mfr. Part No. 3VA6440-5KM31-2AA0
Each
TWD189,274.00(exc. GST)
Temporarily out of stock
Eaton xPole - PXL PXL MCB, 2P, 25A Curve D, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 254-619
  • Mfr. Part No. 236346 PXL-D25/2
Each
TWD3,540.00(exc. GST)
In Stock
Schneider Electric C120 A9N Circuit Breaker, 2P, 100A, Type AC, 415V AC, 250V DC, 10 kA Breaking Capacity
  • RS Stock No. 288-7114
  • Mfr. Part No. A9N18346
Each
TWD23,846.00(exc. GST)
In Stock
ABB Feeder Terminal for use with BGV A2
  • RS Stock No. 478-2188
  • Mfr. Part No. 2CDL200001R3501 SZ-ESK2
Each
TWD223.00(exc. GST)
Temporarily out of stock
WAGO Electronic Circuit Breaker 6A 24V 787, 1 channels , DIN Rail
  • RS Stock No. 303-311
  • Mfr. Part No. 787-3861/600-000
Each
TWD1,458.00(exc. GST)
In Stock
ABB F200 RCCB, 63A, 4 Pole, 100mA, Type A, 230/400V ac
  • RS Stock No. 177-5088
  • Mfr. Part No. 2CSF204201R2630 F204 A S-63/0,1
Each
TWD9,918.00(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 2kA Ekip Touch LI, 4 channels
  • RS Stock No. 259-4727
  • Mfr. Part No. 1SDA073004R1
Each
TWD398,355.00(exc. GST)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 320A, Breaking Capacity 9 kA, Fixed Mount
  • RS Stock No. 231-476
  • Mfr. Part No. 109685 NZMH3-S320
Each
TWD92,759.00(exc. GST)
Temporarily out of stock
ABB Tmax XT Trip Unit for use with Tmax XT
  • RS Stock No. 236-6567
  • Mfr. Part No. 1SDA068044R1 DCL EKIP G-LS/I IN=63A XT4
Each
TWD26,226.00(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1.6kA 1SDA07, 4 channels
  • RS Stock No. 259-3644
  • Mfr. Part No. 1SDA071618R1
Each
TWD427,997.00(exc. GST)
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