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

240 of 999+
Temporarily out of stock
Siemens 1 Phase Surge Protector, 25kA, DIN Rail Mount
  • RS Stock No. 213-1318
  • Mfr. Part No. 5SD7422-0
Each
TWD8,949.00(exc. GST)
Temporarily out of stock
Sensata Airpax Airpax Thermal Circuit Breaker - IULNK1 Single Pole Panel Mount, 80A Current Rating
  • RS Stock No. 275-0327
  • Mfr. Part No. IULNK1-1-52-80.0
1 Box of 5
TWD17,434.00(exc. GST)
Temporarily out of stock
Schneider Electric Busbar Feed Unit, 860mm, 400A, Canalis Series
  • RS Stock No. 207-296
  • Mfr. Part No. KSA400ABGD5
Each
TWD95,839.00(exc. GST)
Temporarily out of stock
Lovato ModuLo P1MB MCB, 2P, 6A Curve C, 230V AC, 80V DC, 10 kA Breaking Capacity
  • RS Stock No. 825-5712
  • Mfr. Part No. P1MB2PC06
Each
TWD1,886.00(exc. GST)
In Stock
Better World
Schneider Electric Acti 9 iC60N MCB, 2P, 50A Curve C, 100 → 130V AC, 12 → 144V DC, 6 kA Breaking Capacity
  • RS Stock No. 734-9273
  • Mfr. Part No. A9F77250
Each
TWD6,825.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 16A, Fixed Mount
  • RS Stock No. 260-9506
  • Mfr. Part No. C10N4TM016
Each
TWD31,836.00(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 4kA Ekip Touch LSI, 3 channels
  • RS Stock No. 259-3328
  • Mfr. Part No. 1SDA071235R1
Each
TWD865,279.00(exc. GST)
Temporarily out of stock
Schneider Electric, Compact MCCB 4P 1.6kA, Fixed Mount
  • RS Stock No. 247-1786
  • Mfr. Part No. 33364
Each
TWD190,248.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 63A, Fixed Mount
  • RS Stock No. 260-9467
  • Mfr. Part No. C10H3TM063
Each
TWD29,559.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 100A, Fixed Mount
  • RS Stock No. 260-8030
  • Mfr. Part No. C25W32D100
Each
TWD120,413.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 2.5A, Fixed Mount
  • RS Stock No. 260-9423
  • Mfr. Part No. C10F3MA003
Each
TWD21,739.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 160A, Fixed Mount
  • RS Stock No. 260-8027
  • Mfr. Part No. C25V4TM160
Each
TWD129,931.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 250A, Fixed Mount
  • RS Stock No. 260-8102
  • Mfr. Part No. C40F4TM250D
Each
TWD163,195.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 100A, Fixed Mount
  • RS Stock No. 260-9422
  • Mfr. Part No. C10F3D
Each
TWD16,188.00(exc. GST)
Temporarily out of stock
ABB MCCB Molded Case Circuit Breaker 4P 400A, Fixed Mount
  • RS Stock No. 250-4196
  • Mfr. Part No. 1SDA054482R1
Each
TWD200,160.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT New Generation MCCB 3P 160A, Fixed Mount
  • RS Stock No. 260-7735
  • Mfr. Part No. C16B32D160
Each
TWD42,958.00(exc. GST)
Temporarily out of stock
Eaton Eaton Moeller NZM Door Coupling Handle for use with N(S)1(-4), NZM1(-4), PN1(-4)
  • RS Stock No. 257-823
  • Mfr. Part No. 279400 NZM1-XTVDVR-0
Each
TWD4,406.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 100A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS Stock No. 271-9648
  • Mfr. Part No. 3VA11103GD420AA0
Each
TWD21,060.00(exc. GST)
In Stock
HENSEL 1, 3 Phase Distribution Board, 12 Way, 63 A
  • RS Stock No. 183-2857
  • Mfr. Part No. KV9112M
Each
TWD3,731.00(exc. GST)
In Stock
Eaton RCCB, 25A, 4 Pole, 30mA, Type AC, 230V ac
  • RS Stock No. 227-0699
  • Mfr. Part No. 264294 PFGM-25/4/003
Each
TWD3,212.00(exc. GST)
1
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