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

300 of 999+
Temporarily out of stock
Phoenix Contact Surge Arrester, DIN Rail Mount
  • RS Stock No. 130-078
  • Mfr. Part No. 2905638
Each
TWD11,968.00(exc. GST)
Temporarily out of stock
Phoenix Contact 1 Phase Surge Arrester, DIN Rail Mount
  • RS Stock No. 135-969
  • Mfr. Part No. 2905977
Each (In a Pack of 20)
TWD2,616.40(exc. GST)
Temporarily out of stock
ETA Thermal Circuit Breaker - 106-P30 Single Pole 250V Voltage Rating Panel Mount, 5A Current Rating
  • RS Stock No. 335-968
  • Mfr. Part No. 106-P30-000040-5A
Each
TWD630.00(exc. GST)
In Stock
ABB Tmax Undervoltage Release for use with Tmax T
  • RS Stock No. 237-6008
  • Mfr. Part No. 1SDA062087R1 UVR T7-M-X1 24VAC/DC
Each
TWD7,062.00(exc. GST)
Temporarily out of stock
Schneider Electric 16 Way Metal Consumer Unit, 100A, IP3x (with cover), IPxx D (on top) EZ9E16
  • RS Stock No. 207-156
  • Mfr. Part No. EZ9E16MCU
Each
TWD4,847.00(exc. GST)
Temporarily out of stock
Better World
Siemens Surge Protector, 6.8kA, Surface Mount Mount
  • RS Stock No. 216-5999
  • Mfr. Part No. 3RT2916-1PB1
Each
TWD3,183.00(exc. GST)
Temporarily out of stock
ALPHA 630 DIN, Abdeckung Höhe=450mm, Bre
  • RS Stock No. 229-9882
  • Mfr. Part No. 8GK9601-3KK31
Each (In a Pack of 10)
TWD6,664.30(exc. GST)
Temporarily out of stock
Phoenix Contact Surge Protector, 32A, 1000V dc
  • RS Stock No. 518-127
  • Mfr. Part No. 1283679
Each
TWD10,095.00(exc. GST)
In Stock
Better World
Schneider Electric Acti 9 iC60L MCB, 3P, 10A Curve C
  • RS Stock No. 247-1949
  • Mfr. Part No. A9F94310
Each
TWD6,873.00(exc. GST)
Temporarily out of stock
Better World
Siemens SENTRON 5SY MCB, 1P, 8A Curve C
  • RS Stock No. 232-2310
  • Mfr. Part No. 5SY5108-7
Each
TWD3,233.00(exc. GST)
Temporarily out of stock
Legrand RCBO, 2P, 45A, 250V AC
  • RS Stock No. 255-2313
  • Mfr. Part No. 401003
Each
TWD9,528.00(exc. GST)
In Stock
Schneider Electric ComPacT NSX Rotary Handle for use with NSX250
  • RS Stock No. 272-7474
  • Mfr. Part No. LV429339T
Each
TWD4,664.00(exc. GST)
Temporarily out of stock
Schneider Electric ComPacT New Generation Trip Unit for use with ComPacT NSX160/250 Circuit Breakers
  • RS Stock No. 260-7724
  • Mfr. Part No. C1645E160
Each
TWD66,948.00(exc. GST)
Temporarily out of stock
Eaton xEffect MCB, 2P, 3.5A Curve D
  • RS Stock No. 230-1033
  • Mfr. Part No. 177570 FAZ6-D3,5/2
Each
TWD3,591.00(exc. GST)
Temporarily out of stock
Schneider Electric Compact Long Rear Connection for use with NS630b
  • RS Stock No. 341-037
  • Mfr. Part No. 33614
Each
TWD22,031.00(exc. GST)
In Stock
Lovato ModuLo P1MB MCB, 3P, 20A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 825-5841
  • Mfr. Part No. P1MB3PC20
Each
TWD2,735.00(exc. GST)
Currently unavailable
Altech Thermal Circuit Breaker - V-EA 2 Pole 277V Voltage Rating DIN Rail Mount, 2.5A Current Rating
  • RS Stock No. 899-1765
  • Mfr. Part No. 2E2.5UM
Each
TWD1,059.00(exc. GST)
Temporarily out of stock
Siemens 5SM2622 RCCB, 40A, 2 Pole, 300mA, Type AC, 230V ac
  • RS Stock No. 231-8302
  • Mfr. Part No. 5SM2622-0
Each
TWD5,163.00(exc. GST)
In Stock
Schneider Electric Thermal Circuit Breaker - GB2 Single Pole 277V ac Voltage Rating DIN Rail Mount, 6A Current Rating
  • RS Stock No. 312-3689
  • Mfr. Part No. GB2CB12
Each
TWD845.00(exc. GST)
In Stock
ABB SMISSLINE TP S400M MCB, 1P, 16A Curve C, 240V AC, 25 kA Breaking Capacity
  • RS Stock No. 246-2479
  • Mfr. Part No. 2CCS571001R0164 S401M-C16
Each
TWD1,062.00(exc. GST)
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