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

16 of 999+
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 800A 1SDA07, 4 channels
  • RS Stock No. 259-4499
  • Mfr. Part No. 1SDA072721R1
Each
TWD157,778.00(exc. GST)
Temporarily out of stock
ABB Tmax Undervoltage Release for use with Tmax T
  • RS Stock No. 237-6009
  • Mfr. Part No. 1SDA062091R1 UVR T7-M-X1 110VAC/DC
Each
TWD9,713.00(exc. GST)
Temporarily out of stock
Eaton xEffect FAZ MCB, 1+N, 40A Curve B, 230V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 256-702
  • Mfr. Part No. 278652 FAZ-B40/1N
Each
TWD2,920.00(exc. GST)
Temporarily out of stock
Better World
Siemens SENTRON 3VA1 MCB, 2P, 20A
  • RS Stock No. 224-7819
  • Mfr. Part No. 3VA1120-3ED26-0AA0
Each
TWD12,467.00(exc. GST)
Temporarily out of stock
Eaton xComfort KLV Distribution Board Enclosure
  • RS Stock No. 124-781
  • Mfr. Part No. 178809 KLV-24HWP-SF
Each
TWD6,729.00(exc. GST)
In Stock
ABB Tmax Undervoltage Release for use with Tmax T
  • RS Stock No. 237-5983
  • Mfr. Part No. 1SDA054880R1 UVR 24VAC/DC T4-6
Each
TWD6,351.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT NSX MCCB 4P 250A, Fixed Mount
  • RS Stock No. 254-6358
  • Mfr. Part No. C25F4
Each
TWD44,289.00(exc. GST)
Temporarily out of stock
Lovato 1 Phase Surge Protector, 50kA
  • RS Stock No. 216-8296
  • Mfr. Part No. SG21NA300
Each
TWD6,473.00(exc. GST)
Temporarily out of stock
Lovato 1 Phase Surge Protector, 50kA
  • RS Stock No. 216-8298
  • Mfr. Part No. SG21PA300
Each
TWD3,290.00(exc. GST)
Temporarily out of stock
Lovato 1 Phase Surge Protector, 50kA
  • RS Stock No. 216-8286
  • Mfr. Part No. SA0B1NA320R
Each
TWD13,156.00(exc. GST)
In Stock
Lovato ModuLo P1MB MCB, 3P, 16A Curve D, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 825-5882
  • Mfr. Part No. P1MB3PD16
Each
TWD2,462.00(exc. GST)
Temporarily out of stock
Lovato 3 Phase Surge Protector, 100kA
  • RS Stock No. 216-8289
  • Mfr. Part No. SA1B3NA320R
Each
TWD53,893.00(exc. GST)
Temporarily out of stock
Lovato 1 Phase Surge Protector, 50kA
  • RS Stock No. 216-8297
  • Mfr. Part No. SG21NA300R
Each
TWD8,040.00(exc. GST)
Temporarily out of stock
Lovato 1 Phase Surge Protector, 100kA
  • RS Stock No. 216-8288
  • Mfr. Part No. SA1B1NA320R
Each
TWD25,337.00(exc. GST)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 1.2kA, Breaking Capacity 15 kA, Fixed Mount
  • RS Stock No. 259-058
  • Mfr. Part No. 271141 NZMN4-VEF1200-NA
Each
TWD298,087.00(exc. GST)
In Stock
ABB S803 Circuit Breaker, 3P, 25A Curve C, 440V AC, 375V DC, 15 kA Breaking Capacity
  • RS Stock No. 287-6384
  • Mfr. Part No. 2CCS883001R0254
Each
TWD5,938.00(exc. GST)
Temporarily out of stock
ABB System Pro M Compact S300P MCB, 1+N, 1.6A Curve D, 240V AC, 72V DC, 100 kA Breaking Capacity
  • RS Stock No. 200-739
  • Mfr. Part No. 2CDS381103R0971
Each
TWD9,068.00(exc. GST)
In Stock
Eaton xEffect xEffect - FAZ-T MCB, 3P, 25A Curve D, 400V AC, 60V DC, 25 kA Breaking Capacity
  • RS Stock No. 129-395
  • Mfr. Part No. 142498 FAZT-D25/3
Each
TWD10,012.00(exc. GST)
In Stock
ABB F202 RCCB, 63A, 2 Pole, 30mA, Type A, 230V ac
  • RS Stock No. 232-0341
  • Mfr. Part No. 2CSF202101R1630 F202 A-63/0.03
Each
TWD7,963.00(exc. GST)
In Stock
ABB Switch Disconnector Circuit Trip for use with Commanding Load
  • RS Stock No. 231-9590
  • Mfr. Part No. 2CDE282001R0100 E202/100r
1 Box of 1
TWD1,525.00(exc. GST)
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