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

144 of 999+
Temporarily out of stock
ABB S304 MCB, 4P, 10A Curve D, 415V AC, 125V DC, 100 kA Breaking Capacity
  • RS Stock No. 202-839
  • Mfr. Part No. 2CDS384001R0101
Each
TWD16,454.00(exc. GST)
Temporarily out of stock
ABB F200 RCCB, 40A, 4 Pole, 30mA, 400V ac
  • RS Stock No. 176-9636
  • Mfr. Part No. F204F-40/0.03
Each
TWD29,563.00(exc. GST)
Temporarily out of stock
ABB RCBO, 32A Current Rating, 3P Poles, Type B
  • RS Stock No. 237-5181
  • Mfr. Part No. 2CSR273101R1325
Each
TWD11,835.00(exc. GST)
Temporarily out of stock
Legrand 1+N Phase Surge Protector, 10kA, 1.2kV
  • RS Stock No. 255-2133
  • Mfr. Part No. 003971
Each
TWD15,686.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 90A, Breaking Capacity 7 kA, Fixed Mount
  • RS Stock No. 147-737
  • Mfr. Part No. 3VA5190-5GD41-0AA0
Each
TWD23,065.00(exc. GST)
Limited stock
ETA Thermal Circuit Breaker - 8340 Single Pole 80V dc Voltage Rating Flange Mount, 15A Current Rating
  • RS Stock No. 273-4648
  • Mfr. Part No. 8340-F410-P1M1-A3H0-15A
Each
TWD2,807.00(exc. GST)
In Stock
Eaton RCD, 40A, 4 Pole, 30mA, Type A, 230/400V ac
  • RS Stock No. 922-8664
  • Mfr. Part No. 235439 PFIM-40/4/003-A-MW
Each
TWD7,191.00(exc. GST)
Temporarily out of stock
Schurter Thermal Circuit Breaker - T11 Single Pole 240V ac Voltage Rating, 8A Current Rating
  • RS Stock No. 173-9819
  • Mfr. Part No. 4400.0029
Each (In a Box of 100)
TWD238.90(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 5kA 1SDA07, 4 channels
  • RS Stock No. 259-3875
  • Mfr. Part No. 1SDA071897R1
Each
TWD1,602,095.00(exc. GST)
Temporarily out of stock
Eaton NZM Handle for use with NS2…-NA, NZM2…-NA
  • RS Stock No. 120-806
  • Mfr. Part No. 155484 NZM2-XSH-12-120-NA
Each
TWD41,648.00(exc. GST)
Temporarily out of stock
Eaton RCBO, 13A Current Rating, 1+N Poles, 300mA Trip Sensitivity, Type D, xEffect Range
  • RS Stock No. 251-869
  • Mfr. Part No. 193500 FRBmM-D13/1N/03-F
Each
TWD8,276.00(exc. GST)
In Stock
Schurter TA36 Rocker Circuit Breaker - TA36 2 Pole 60 V dc, 277 V ac Voltage Rating, 16A Current Rating
  • RS Stock No. 221-5618
  • Mfr. Part No. 3-128-230
Each
TWD633.00(exc. GST)
Temporarily out of stock
Eaton Eaton Moeller NZM Rotary Handle for use with N(S)2(-4), NZM2(-4), PN2(-4)
  • RS Stock No. 258-900
  • Mfr. Part No. 285280 NZM2-XDVGR
Each
TWD2,969.00(exc. GST)
Temporarily out of stock
ABB Tmax XT Trip Unit for use with Tmax XT
  • RS Stock No. 236-7274
  • Mfr. Part No. 1SDA067380R1 TMD 32-320 XT4 3p
Each
TWD17,522.00(exc. GST)
Temporarily out of stock
Eaton, Eaton Moeller series NZM MCCB Molded Case Circuit Breaker 3P 40A, Breaking Capacity 4 kA, Plug In
  • RS Stock No. 230-650
  • Mfr. Part No. 112737 NZMC1-A40-SVE
Each
TWD18,084.00(exc. GST)
In Stock
Schneider Electric Mureva Enclosure
  • RS Stock No. 466-0533
  • Mfr. Part No. 13443
Each
TWD4,380.00(exc. GST)
Temporarily out of stock
Siemens ALPHA Busbar
  • RS Stock No. 629-172
  • Mfr. Part No. 8GK9736-0KK10
Each
TWD1,728.00(exc. GST)
Currently unavailable
Schneider Electric IID RCCB, 40A, 4 Pole, 30mA, Type A, 380 → 415V ac
  • RS Stock No. 230-6688
  • Mfr. Part No. A9R51440
Each
TWD3,044.00(exc. GST)
In Stock
Better World
Schneider Electric Acti 9 iC60N MCB, 1P, 1A Curve C, 240V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 776-3433
  • Mfr. Part No. A9F74101
Each
TWD2,004.00(exc. GST)
Temporarily out of stock
Better World
ABB System Pro M Compact S200 MCB, 3+N, 6A Curve K
  • RS Stock No. 237-3285
  • Mfr. Part No. 2CDS253103R0377
Each
TWD6,330.00(exc. GST)
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