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

269 of 999+
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 150A, Breaking Capacity 5 kA, Fixed Mount
  • RS Stock No. 229-601
  • Mfr. Part No. 107646 NZMN2-AF150-BT-NA
Each
TWD51,303.00(exc. GST)
In Stock
Better World
Schneider Electric Acti9 iDT40 RCCB, 40A, 3 Pole, 300mA, Type AC, 400V ac
  • RS Stock No. 238-3504
  • Mfr. Part No. A9Y63340
Each
TWD11,353.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric Acti9 iTG40 RCCB, 40A, 1+N Pole, 300mA, Type AC, 230V ac
  • RS Stock No. 238-3491
  • Mfr. Part No. A9Y13640
Each
TWD10,796.00(exc. GST)
Temporarily out of stock
ABB Tmax XT Shunt Opening Release for use with Tmax XT
  • RS Stock No. 237-6054
  • Mfr. Part No. 1SDA066334R1 SOR-C XT2-XT4 W 480-525VAC
Each
TWD4,200.00(exc. GST)
Temporarily out of stock
Better World
ABB, XT2L MCCB 4P 63A, Fixed Mount
  • RS Stock No. 236-6504
  • Mfr. Part No. 1SDA067961R1 XT2L 160 Ekip LSI 63A FF
Each
TWD57,026.00(exc. GST)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 630A, Breaking Capacity 5 kA, Withdrawable
  • RS Stock No. 251-124
  • Mfr. Part No. 192350 NZMN3-PX630-AVE
Each
TWD159,991.00(exc. GST)
Temporarily out of stock
Eaton xE?ect - FRCmM-NA RCCB, 63A, 4 Pole, 30mA, 240/415V ac
  • RS Stock No. 120-281
  • Mfr. Part No. 167109 FRCMM-63/4/003-G/A-NA
Each
TWD10,505.00(exc. GST)
Temporarily out of stock
ABB MCCB Molded Case Circuit Breaker 3P 320A, Fixed Mount
  • RS Stock No. 250-4176
  • Mfr. Part No. 1SDA054448R1
Each
TWD177,610.00(exc. GST)
In Stock
ABB DDA 200 A RCD, 25A, 3+N Pole, 30mA, Type A
  • RS Stock No. 610-3442
  • Mfr. Part No. 2CSB204101R1250 - DDA204A-25/0,03
Each
TWD3,924.00(exc. GST)
In Stock
Better World
Schneider Electric Busbar Trunking Fixing Bracket, Canalis KBB Series
  • RS Stock No. 248-4067
  • Mfr. Part No. KBB40ZFU
Each
TWD105.00(exc. GST)
Temporarily out of stock
Schneider Electric PowerPact Thermal Magnetic Circuit Breaker - PowerPacT Single Pole 240V ac Voltage Rating Clip-On,
  • RS Stock No. 336-585
  • Mfr. Part No. BJL16020
Each
TWD15,533.00(exc. GST)
Temporarily out of stock
ABB TMAX T7S 1250 MCB, 4P, 1.25kA, 690V AC
  • RS Stock No. 237-6022
  • Mfr. Part No. 1SDA062891R1 T7S-M 1250A PR232-LSI FF
Each
TWD216,209.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric, PowerPact MCCB 3P 200A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 219-8421
  • Mfr. Part No. NJJF36200TW
Each
TWD92,769.00(exc. GST)
Temporarily out of stock
ABB 16 Way Steel Consumer Unit, 100A, IP30 Housemaster
  • RS Stock No. 453-996
  • Mfr. Part No. 1SKB118142C6001
Each
TWD10,304.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 1kA, Breaking Capacity 31 kA, Fixed Mount
  • RS Stock No. 428-721
  • Mfr. Part No. C100H320FM
Each
TWD400,829.00(exc. GST)
In Stock
Schneider Electric Easy9 Busbar
  • RS Stock No. 850-8678
  • Mfr. Part No. EZ916BKIT
Each
TWD215.00(exc. GST)
Temporarily out of stock
Siemens SENTRON 5SJ4232 MCB, 2P, 32A Curve D, 400V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 299-969
  • Mfr. Part No. 5SJ4232-8HG41
Each
TWD7,165.00(exc. GST)
In Stock
Better World
ABB Compact Home SH200 MCB, 3P, 32A Curve B, 440V AC, 6 kA Breaking Capacity
  • RS Stock No. 539-8318
  • Mfr. Part No. 2CDS213001R0325 SH203-B32
Each
TWD1,860.00(exc. GST)
In Stock
Better World
Schneider Electric iC60 RCD, 25A, 30mA
  • RS Stock No. 776-2916
  • Mfr. Part No. A9Q31425
Each
TWD18,085.00(exc. GST)
Temporarily out of stock
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 800A, Fixed Mount
  • RS Stock No. 231-9350
  • Mfr. Part No. 1SDA100741R1 XT6S 800 EkipDip LS/I 800
Each
TWD91,874.00(exc. GST)
1
269
1794
Results per page

Related links