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

244 of 999+
In Stock
ABB RCBO, 32A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type B, System Pro M Compact Range
  • RS Stock No. 914-4070
  • Mfr. Part No. 2CSR255051R1325 DSE201 B32 AC30 - N Blue
Each
TWD2,331.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 160A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 210-1690
  • Mfr. Part No. 3VA1216-4EF32-0AA0
Each
TWD36,632.00(exc. GST)
In Stock
ABB System Pro M Compact S200 M UC MCB, 1P, 4A Curve C, 230V AC, 220V DC, 10 kA Breaking Capacity
  • RS Stock No. 200-019
  • Mfr. Part No. 2CDS271061R0044
Each
TWD3,498.00(exc. GST)
In Stock
Schneider Electric Acti9 Acti9 Moteur MCB, 2P, 1.6A, Type MA, 500V AC, 415 V Breaking Capacity
  • RS Stock No. 458-915
  • Mfr. Part No. A9F90272
Each
TWD16,041.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 800A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 250-169
  • Mfr. Part No. 3VA6580-7JP32-0AA0
Each
TWD241,764.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 600A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 249-875
  • Mfr. Part No. 3VA6560-5HN36-2AA0
Each
TWD158,622.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 32A, Breaking Capacity 16 kA
  • RS Stock No. 209-6956
  • Mfr. Part No. 3VA1032-2ED32-0AA0
Each
TWD12,597.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric, ComPacT NSX MCCB 3P 160A, Fixed Mount
  • RS Stock No. 254-6354
  • Mfr. Part No. C25F3TM160
Each
TWD49,262.00(exc. GST)
In Stock
Better World
Schneider Electric RCBO, 10A Current Rating, 1P Poles, 30mA Trip Sensitivity, Resi9 Range
  • RS Stock No. 247-2230
  • Mfr. Part No. R9D01610
Each
TWD3,775.00(exc. GST)
Temporarily out of stock
Hager BSC RCCB, 63A, 4 Pole, 1A, Type AC
  • RS Stock No. 602-081
  • Mfr. Part No. BSC863
Each
TWD17,707.00(exc. GST)
In Stock
ABB System Pro M Compact SU200M MCB, 2P, 10A Curve K, 440V AC, 440V DC, 15 kA Breaking Capacity
  • RS Stock No. 231-9741
  • Mfr. Part No. 2CDS272337R0427 SU202M-K10
1 Box of 1
TWD3,916.00(exc. GST)
Temporarily out of stock
Eaton Eaton Moeller NZM Undervoltage Release for use with N(S)2(-4), N(S)3(-4), NZM2(-4), NZM3(-4)
  • RS Stock No. 255-726
  • Mfr. Part No. 259587 NZM2/3-XUHIV60AC
Each
TWD7,778.00(exc. GST)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 500A, Breaking Capacity 4 kA, Withdrawable
  • RS Stock No. 229-893
  • Mfr. Part No. 113521 NZMC3-4-A500/320-AVE
Each
TWD145,059.00(exc. GST)
New product - Preorder today
Hager NQN MCB, 4P, 10A Curve B, 415V AC, 25 kA Breaking Capacity
  • RS Stock No. 597-869
  • Mfr. Part No. NQN410
Each
TWD13,280.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT New Generation MCCB 4P 160A, Fixed Mount
  • RS Stock No. 260-7817
  • Mfr. Part No. C16N4TM160
Each
TWD59,210.00(exc. GST)
In Stock
Better World
Schneider Electric Vigi iDT40 RCD, 25A, 1+N Pole, 30mA, 230V ac
  • RS Stock No. 191-6145
  • Mfr. Part No. A9Y62625
Each
TWD7,058.00(exc. GST)
In Stock
Better World
Schneider Electric Acti 9 Acti9 iDT40N MCB, 3P, 40A Curve D, 400V AC
  • RS Stock No. 239-9973
  • Mfr. Part No. A9P34340
Each
TWD8,853.00(exc. GST)
Temporarily out of stock
Eaton Eaton Moeller NZM Undervoltage Release for use with PXR20(25) NZM2(-4), PXR20(25) NZM3(-4)
  • RS Stock No. 242-979
  • Mfr. Part No. 189725 NZM2/3-XU2A24DC
Each
TWD7,586.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric Busbar Feed Unit, Canalis KBB Series
  • RS Stock No. 211-0375
  • Mfr. Part No. KBB40ABD4W
Each
TWD2,508.00(exc. GST)
In Stock
Eaton MCB, 1+N, 32A Curve C
  • RS Stock No. 230-1081
  • Mfr. Part No. 264749 PLG4-C32/1N
Each
TWD419.00(exc. GST)
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