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

1727 of 999+
Temporarily out of stock
Better World
ABB, Tmax XT MCCB 4P 6.3A, Fixed Mount
  • RS Stock No. 236-7386
  • Mfr. Part No. 1SDA067611R1 XT2H 160 TMD 6.3A FF
Each
TWD15,575.00(exc. GST)
Temporarily out of stock
ABB Tmax XT Trip Unit for use with Tmax XT
  • RS Stock No. 236-7229
  • Mfr. Part No. 1SDA067269R1 TMG 125-375 XT2 3p
Each
TWD8,412.00(exc. GST)
Temporarily out of stock
Eaton, Eaton Moeller series NZM MCCB Molded Case Circuit Breaker 4P 250A, Breaking Capacity 5 kA, Plug In
  • RS Stock No. 231-135
  • Mfr. Part No. 113280 NZMN2-4-VE250-SVE
Each
TWD86,438.00(exc. GST)
In Stock
Europa EUC1P EUC MCB, 1P, 2A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 849-6496
  • Mfr. Part No. EUC1P2C
Each
TWD399.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 270-3947
  • Mfr. Part No. 3VA2110-5MP36-0AA0
Each
TWD89,075.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric RCBO, 10A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 238-3320
  • Mfr. Part No. A9DS1610
Each
TWD10,419.00(exc. GST)
Temporarily out of stock
ABB OS Terminal Cover for use with Low-Voltage Switch Technology
  • RS Stock No. 259-9740
  • Mfr. Part No. 1SCA107938R1001
Each
TWD3,177.00(exc. GST)
Temporarily out of stock
ABB SMISSLINE TP MCB, 1P, 10A Curve C, 220V AC
  • RS Stock No. 246-2508
  • Mfr. Part No. 2CCS571001R1104
Each
TWD3,057.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 35A, Breaking Capacity 10 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-606
  • Mfr. Part No. 3VA5135-6ED41-0AA0
Each
TWD20,393.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 80A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 209-5045
  • Mfr. Part No. 3VA1180-5ED42-0AA0
Each
TWD21,830.00(exc. GST)
Temporarily out of stock
Better World
Siemens, 0AA0 MCCB 4P 160A, Breaking Capacity 70 kA, Fixed Mount
  • RS Stock No. 211-5993
  • Mfr. Part No. 3VA1116-6EE46-0AA0
Each
TWD44,579.00(exc. GST)
In Stock
WAGO Electronic Circuit Breaker 2A 24V 787, 1 channels , DIN Rail
  • RS Stock No. 303-276
  • Mfr. Part No. 787-3861/200-000
Each
TWD1,518.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 150A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 269-936
  • Mfr. Part No. 3VA6115-7JQ41-0AA0
Each
TWD133,334.00(exc. GST)
In Stock
Better World
Schneider Electric Acti 9 Acti9 iDT40T MCB, 3P, 10A Curve C, 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 191-6095
  • Mfr. Part No. A9P22710
Each
TWD5,464.00(exc. GST)
In Stock
ETA Thermal Circuit Breaker - 3120-N 5 Pole 50 V DC, 240 V AC Voltage Rating, 2A Current Rating
  • RS Stock No. 210-2089
  • Mfr. Part No. 3120-N551-H7T1-W02D-2A
Each
TWD1,091.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 100A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 270-3955
  • Mfr. Part No. 3VA2110-6HM42-0AA0
Each
TWD58,253.00(exc. GST)
Temporarily out of stock
Siemens SENTRON Signaling Switch for use with Circuit Breaker 3WL10 / 3VA27
  • RS Stock No. 265-665
  • Mfr. Part No. 3VW9011-0AH08
Each
TWD3,268.00(exc. GST)
In Stock
Lovato P1RD Residual Current Circuit Breaker, 40A, 4 Pole, 300mA, Type AC, 230 V ac, 400 V ac
  • RS Stock No. 277-5048
  • Mfr. Part No. P1RD4P40AC300
Each
TWD6,017.00(exc. GST)
Temporarily out of stock
Better World
Siemens RCBO, 25A Current Rating, 2P Poles, 30mA Trip Sensitivity, SENTRON Range
  • RS Stock No. 211-9612
  • Mfr. Part No. 5SU1354-4KK25
Each
TWD9,152.00(exc. GST)
Temporarily out of stock
Schneider Electric MasterPact Insulation accessory for use with MTZ1
  • RS Stock No. 212-003
  • Mfr. Part No. LV833768SP
Each
TWD3,824.00(exc. GST)
1
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