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

281 of 999+
In Stock
ABB DDA202 RCD, 40A, 2 Pole, 30mA, 230V
  • RS Stock No. 231-9887
  • Mfr. Part No. 2CSB202001R1400 DDA202 AC-40/0.03
Each
TWD4,518.00(exc. GST)
Temporarily out of stock
Eaton xEffect RCCB, 63A, 2 Pole, 300mA, Type F, 240V ac
  • RS Stock No. 248-939
  • Mfr. Part No. 187398 FRCMM-63/2/03-S/F
Each
TWD15,658.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 175A, Breaking Capacity 18 kA, Fixed Mount
  • RS Stock No. 147-997
  • Mfr. Part No. 3VA5217-5ED31-1AA0
Each
TWD50,880.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 600A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 250-109
  • Mfr. Part No. 3VA6560-6HN36-2AA0
Each
TWD177,779.00(exc. GST)
Temporarily out of stock
Siemens ALPHA Adapter Kit for use with ALPHA 400 DIN
  • RS Stock No. 216-4833
  • Mfr. Part No. 8GK4101-8KK12
Each
TWD8,157.00(exc. GST)
Temporarily out of stock
Eaton Eaton Moeller NZM Door Coupling Handle for use with N(S)2, NZM2
  • RS Stock No. 256-769
  • Mfr. Part No. 271450 NZM2-XTVDVR-NA
Each
TWD4,674.00(exc. GST)
Temporarily out of stock
Eaton Eaton Metering Board ZSD Meter Cabinet for use with Metering Board
  • RS Stock No. 240-888
  • Mfr. Part No. 191010 ZSD-ZZV-1100/APZ
Each
TWD81,495.00(exc. GST)
Temporarily out of stock
Contactum 14 Way Steel Consumer Unit, 100A Defender
  • RS Stock No. 184-9150
  • Mfr. Part No. DDS14188SPMS-P01
Each
TWD9,960.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 150A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 270-087
  • Mfr. Part No. 3VA6115-8HM41-2AA0
Each
TWD118,392.00(exc. GST)
Temporarily out of stock
ABB S802S RCCB, 100A, 2 Pole, 690V
  • RS Stock No. 140-831
  • Mfr. Part No. 2CCS802901R0639
Each
TWD59,068.00(exc. GST)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 1kA Ekip Dip LI, 3 channels
  • RS Stock No. 259-9930
  • Mfr. Part No. 1SDA070791R1
Each
TWD183,082.00(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 2kA 1SDA07, 3 channels
  • RS Stock No. 259-4271
  • Mfr. Part No. 1SDA072400R1
Each
TWD544,395.00(exc. GST)
Temporarily out of stock
Eaton Eaton Moeller NZM Door Coupling Handle for use with N(S)2, NZM2
  • RS Stock No. 248-655
  • Mfr. Part No. 100668 NZM2-XTVDV-60-NA
Each
TWD4,368.00(exc. GST)
Temporarily out of stock
Better World
Siemens SENTRON 5SY7 MCB, 1+N, 10A Curve B, 230V AC, 72V DC, 5 kA Breaking Capacity
  • RS Stock No. 212-9027
  • Mfr. Part No. 5SY7510-6
Each
TWD2,879.00(exc. GST)
Temporarily out of stock
Better World
Siemens RCBO, 100A Current Rating, 4P Poles, 30mA Trip Sensitivity, Type C, Sentron Range
  • RS Stock No. 243-6223
  • Mfr. Part No. 5SU1374-7DK81
Each
TWD186,175.00(exc. GST)
Temporarily out of stock
HENSEL ENYBOARD Distribution Board, 63 A
  • RS Stock No. 117-069
  • Mfr. Part No. KV 9103
Each
TWD1,479.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 160A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 429-399
  • Mfr. Part No. C16H6TM160
Each
TWD87,613.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 250A, Fixed Mount
  • RS Stock No. 260-8149
  • Mfr. Part No. C40S4TM250D
Each
TWD200,738.00(exc. GST)
Temporarily out of stock
Hager Hager NSN Circuit Breaker, 3P, 10A Curve D, 415V AC, 25 kA Breaking Capacity
  • RS Stock No. 599-720
  • Mfr. Part No. NSN310
Each
TWD11,269.00(exc. GST)
Temporarily out of stock
Phoenix Contact Surge Protector, 40kA, DIN Rail Mount
  • RS Stock No. 207-2665
  • Mfr. Part No. 1052649
Each
TWD4,923.00(exc. GST)
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