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

1759 of 999+
Temporarily out of stock
Hager 48 Way Plastic Consumer Unit, IP30 FD
  • RS Stock No. 144-4608
  • Mfr. Part No. FD22AN
Each
TWD14,337.00(exc. GST)
Temporarily out of stock
Eaton xPole - PXL PXL MCB, 1P, 13A Curve C, 440V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 255-765
  • Mfr. Part No. 236686 PXL-C13-DC
Each
TWD2,686.00(exc. GST)
Temporarily out of stock
Hager Hager HMD Circuit Breaker, 2P, 125A Curve D, 415V AC, 15 kA Breaking Capacity
  • RS Stock No. 599-779
  • Mfr. Part No. HMD299
Each
TWD23,473.00(exc. GST)
Temporarily out of stock
Siemens ALPHA Partitions for use with ALPHA DIN Installation Distributor
  • RS Stock No. 272-0354
  • Mfr. Part No. 8GK9520-8KK01
Each
TWD2,188.00(exc. GST)
In Stock
Weidmuller Electronic Circuit breaker 25mA 24V AMG ELM, 1 channels , DIN Rail Mount
  • RS Stock No. 179-2999
  • Mfr. Part No. 2080600000
Each
TWD1,471.00(exc. GST)
Temporarily out of stock
Siemens SENTRON Terminal for use with 3VA13/14, 3VA23/24
  • RS Stock No. 161-432
  • Mfr. Part No. 3VA9401-0QF20
Each
TWD2,253.00(exc. GST)
Temporarily out of stock
Eaton xEffect - FBSmV RCCB, 40A, 3 Pole, 300mA, Type A, 240/415V ac
  • RS Stock No. 123-528
  • Mfr. Part No. 170221 FBSMV-40/3/03-A
Each
TWD3,980.00(exc. GST)
Temporarily out of stock
Phoenix Contact Thermal Magnetic Circuit Breaker - TMC Single Pole 65V dc Voltage Rating DIN Rail, 4A Current Rating
  • RS Stock No. 135-837
  • Mfr. Part No. 0914303
1 Pack of 6
TWD16,636.00(exc. GST)
In Stock
Better World
Schneider Electric, ComPacT NSX MCCB 4P 100A, Fixed Mount
  • RS Stock No. 254-6310
  • Mfr. Part No. C11B4TM100L
Each
TWD24,872.00(exc. GST)
Temporarily out of stock
Schneider Electric Busbar End Feed Unit, 250A, Canalis Series
  • RS Stock No. 119-587
  • Mfr. Part No. KSA250ABDD5
Each
TWD100,763.00(exc. GST)
Temporarily out of stock
Better World
ABB, Tmax XT MCCB 3P 14A, Fixed Mount
  • RS Stock No. 236-7498
  • Mfr. Part No. 1SDA067790R1 XT2V 160 MF 1 FF
Each
TWD32,135.00(exc. GST)
In Stock
Lovato ModuLo P1MB MCB, 3P, 2A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 825-5823
  • Mfr. Part No. P1MB3PC02
Each
TWD3,119.00(exc. GST)
Temporarily out of stock
ABB MCCB Molded Case Circuit Breaker 3P 250A, Fixed Mount
  • RS Stock No. 250-4216
  • Mfr. Part No. 1SDA054511R1
Each
TWD178,871.00(exc. GST)
Temporarily out of stock
Eaton Distribution Parts Rigid Wire Jumper for use with Distribution Parts
  • RS Stock No. 252-819
  • Mfr. Part No. 215615 RVS-1PHAS+N/125
1 Pack of 3
TWD498.00(exc. GST)
Temporarily out of stock
Legrand DX3 RCD, 6A, 1+N Pole, 30mA
  • RS Stock No. 731-9878
  • Mfr. Part No. 4 107 99
Each
TWD15,974.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric Compact Locking Kit for use with Nsx 100..250/400..630
  • RS Stock No. 221-1179
  • Mfr. Part No. LV429286
Each
TWD4,530.00(exc. GST)
In Stock
Better World
Siemens Sentron 5SY7 MCB, 1P, 10A Curve B, 230V AC, 15 kA Breaking Capacity
  • RS Stock No. 622-0216
  • Mfr. Part No. 5SY7110-6
Each
TWD984.00(exc. GST)
Temporarily out of stock
Siemens SENTRON 5SM2 MCB, 2P, 63A, Type AC
  • RS Stock No. 211-9575
  • Mfr. Part No. 5SM2425-6
Each
TWD10,980.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 1kA, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 428-727
  • Mfr. Part No. C100L35AFM
Each
TWD593,662.00(exc. GST)
Temporarily out of stock
Schneider Electric, PowerPact MCCB 2P 100A, Breaking Capacity 18 kA, Clip-On
  • RS Stock No. 346-795
  • Mfr. Part No. BDL26100LU
Each
TWD24,780.00(exc. GST)
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