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

133 of 999+
Schneider Electric
  • RS Stock No. 610-1070
  • Mfr. Part No. GV1G10
Each
TWD190.00(exc. GST)
Better World
Schneider Electric Acti 9 iC60H MCB, 2P, 20A Curve B, 440V AC, 100 → 133V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3196
  • Mfr. Part No. A9F53220
Each
TWD2,503.00(exc. GST)
Siemens, SENTRON MCCB 2P 90A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 147-729
  • Mfr. Part No. 3VA5190-5ED21-0AA0
Each
TWD16,114.00(exc. GST)
ABB Tmax XT Front Terminal for use with Tmax XT
  • RS Stock No. 237-6152
  • Mfr. Part No. 1SDA066879R1 EF XT4 6PCS
Each
TWD3,501.00(exc. GST)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 125A, Breaking Capacity 55 kA, DIN Rail Mount
  • RS Stock No. 271-9734
  • Mfr. Part No. 3VA1112-5GD42-0AA0
Each
TWD38,847.00(exc. GST)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 160A, Breaking Capacity 5 kA, Plug In
  • RS Stock No. 249-037
  • Mfr. Part No. 192179 NZMH2-PX160-SVE
Each
TWD82,482.00(exc. GST)
Siemens, SENTRON MCCB 3P 250A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 257-311
  • Mfr. Part No. 3VA5325-7EC31-2AA0
Each
TWD91,879.00(exc. GST)
Better World
Schneider Electric Multi 9 C60N MCB, 2P, 20A Curve C, 10 kA Breaking Capacity
  • RS Stock No. 214-2067
  • Mfr. Part No. M9F11220
Each
TWD3,581.00(exc. GST)
Better World
Schneider Electric RCBO, 40A Current Rating, 1P+N Poles, 300mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 238-3297
  • Mfr. Part No. A9DK5640
Each
TWD13,321.00(exc. GST)
Better World
Siemens, 3VA2 MCCB 3P 63A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 210-3344
  • Mfr. Part No. 3VA2163-6HL36-0AA0
Each
TWD33,674.00(exc. GST)
Better World
Siemens, SENTRON MCCB 4P 40A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 270-4639
  • Mfr. Part No. 3VA2140-6JQ46-0AA0
Each
TWD83,938.00(exc. GST)
ABB, SACE Tmax T MCCB Molded Case Circuit Breaker 3P 320A, Breaking Capacity 70 kA, Fixed Mount
  • RS Stock No. 232-0083
  • Mfr. Part No. 1SDA054117R1 T4N320 FF PR221-LS 320A
Each
TWD38,963.00(exc. GST)
Better World
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 4P 200A, Fixed Mount
  • RS Stock No. 232-0268
  • Mfr. Part No. 1SDA068069R1 XT3N 250 TMD 200A FF
Each
TWD30,269.00(exc. GST)
Hager BFC RCCB, 63A, 4 Pole, 300mA, Type AC
  • RS Stock No. 602-194
  • Mfr. Part No. BFC866
Each
TWD13,593.00(exc. GST)
ABB RHD T6 W Rotary Handle for use with Tmax T
  • RS Stock No. 237-5996
  • Mfr. Part No. 1SDA060407R1 RHD W T6
Each
TWD4,811.00(exc. GST)
Better World
Schneider Electric Modicon TM5 Bus Base for use with Remote receiver module Power distribution module
  • RS Stock No. 219-9194
  • Mfr. Part No. TM5ACBM01R
Each
TWD1,220.00(exc. GST)
Better World
Schneider Electric Acti 9 Acti9 iDT40T MCB, 1+N, 40A Curve B, 230V AC
  • RS Stock No. 238-3362
  • Mfr. Part No. A9P12640
Each
TWD3,200.00(exc. GST)
Siemens SENTRON Option Plug
  • RS Stock No. 277-0968
  • Mfr. Part No. 3WA9111-0EX32
Each
TWD43,310.00(exc. GST)
ABB S201 Circuit Breaker, 1+N, 16A Curve C, 230V AC, 110V DC, 10 kA Breaking Capacity
  • RS Stock No. 287-6357
  • Mfr. Part No. 2CDS251103R0164
Each (In a Pack of 5)
TWD1,251.00(exc. GST)
Eaton xEffect RCCB, 100A, 2 Pole, 300mA, Type F, 240V ac
  • RS Stock No. 246-772
  • Mfr. Part No. 187400 FRCMM-100/2/03-S/F
Each
TWD36,289.00(exc. GST)
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