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

95 of 999+
Hager CPC RCCB, 63A, 1P+N Pole, 300mA, Type AC, 230V ac
  • RS Stock No. 597-871
  • Mfr. Part No. CPC163F
Each
TWD12,159.00(exc. GST)
QSA Rear Cover 1P, rear side
  • RS Stock No. 245-820
  • Mfr. Part No. 1319439 QSARCOVER1P63-160
Each
TWD1,199.00(exc. GST)
Siemens SIRIUS 3 Phase Busbar, 690V, 45mm Pitch
  • RS Stock No. 246-5140
  • Mfr. Part No. 3RV1915-1CB
Each
TWD705.00(exc. GST)
Eaton, Moeller Series NZM MCCB Molded Case Circuit Breaker 3P
  • RS Stock No. 254-019
  • Mfr. Part No. 266691 NZM4-XR24-30DC
Each
TWD94,369.00(exc. GST)
Better World
Schneider Electric Multi 9 C60SP MCB, 1P, 3A Curve C, 415V AC, 60V DC, 20 kA Breaking Capacity
  • RS Stock No. 211-2355
  • Mfr. Part No. M9F22103
Each
TWD672.00(exc. GST)
Finder Busbar
  • RS Stock No. 123-2855
  • Mfr. Part No. 097.58
Each
TWD100.00(exc. GST)
Siemens Sentron 5SY6 MCB, 2P, 4A Curve C, 400V AC, 72V DC, 6 kA Breaking Capacity
  • RS Stock No. 196-3627
  • Mfr. Part No. 5SY62047
Each
TWD2,074.00(exc. GST)
ETA Thermal Circuit Breaker - 1110 Single Pole 250V Voltage Rating Panel Mount, 2A Current Rating
  • RS Stock No. 416-966
  • Mfr. Part No. 1110-F112-P1M1-2A
Each
TWD771.00(exc. GST)
ABB Emax2 Electronic Circuit Breaker 1.6kA Ekip Touch LI, 3 channels
  • RS Stock No. 259-4116
  • Mfr. Part No. 1SDA072224R1
Each
TWD162,243.00(exc. GST)
Eaton xEffect MCB, 1P, 10A Curve D, 240V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 922-7037
  • Mfr. Part No. 278580 FAZ-D10/1
Each
TWD943.00(exc. GST)
Phoenix Contact Thermal Circuit Breaker - TCP Single Pole 32V dc Voltage Rating On Base Element, 6A Current Rating
  • RS Stock No. 558-696
  • Mfr. Part No. 1499965
1 Pack of 100
TWD30,040.00(exc. GST)
Eaton xEffect MCB, 2P, 40A Curve D, 240 → 415V AC, 10 kA Breaking Capacity
  • RS Stock No. 847-3617
  • Mfr. Part No. 278787 FAZ-D40/2
Each
TWD2,737.00(exc. GST)
Schurter TA36 Rocker Circuit Breaker - TA36 Single Pole 32 V dc, 277 V ac Voltage Rating, 6A Current Rating
  • RS Stock No. 221-5584
  • Mfr. Part No. 3-128-199
1 Box of 50
TWD17,136.00(exc. GST)
Better World
Schneider Electric Multi 9 C60BP MCB, 3P, 35A Curve D, 440V AC, 15 kA Breaking Capacity
  • RS Stock No. 211-2460
  • Mfr. Part No. M9F43335
Each
TWD11,109.00(exc. GST)
Better World
Siemens Sentron 5SY4 MCB, 2P, 40A Curve C, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 124-3167
  • Mfr. Part No. 5SY4240-7
Each
TWD2,690.00(exc. GST)
Better World
Schneider Electric Multi 9 MCB, 3P, 16A Curve C, 10 kA Breaking Capacity
  • RS Stock No. 219-9132
  • Mfr. Part No. M9F22316
Each
TWD7,630.00(exc. GST)
Better World
Schneider Electric Multi 9 C60SP MCB, 2P, 5A Curve D, 440V AC, 125V DC, 15 kA Breaking Capacity
  • RS Stock No. 211-2394
  • Mfr. Part No. M9F23205
Each
TWD3,038.00(exc. GST)
Better World
Siemens SENTRON 5SL6 MCB, 1+N, 10A Curve C, 6 kA Breaking Capacity
  • RS Stock No. 201-3737
  • Mfr. Part No. 5SL6010-7
Each
TWD1,900.00(exc. GST)
Better World
Schneider Electric Multi 9 C60SP MCB, 2P, 10A Curve B, 440V AC, 125V DC, 15 kA Breaking Capacity
  • RS Stock No. 211-2339
  • Mfr. Part No. M9F21210
Each
TWD2,642.00(exc. GST)
Siemens Surge Protector, Clip-On Mount
  • RS Stock No. 211-0194
  • Mfr. Part No. 5SD7488-0
Each
TWD4,230.00(exc. GST)
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