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

60 of 999+
Temporarily out of stock
ABB IEC Range Busbar for use with DDA200, F200, S200
  • RS Stock No. 250-4743
  • Mfr. Part No. 2CDL220010R1012
1 Box of 50
TWD27,648.00(exc. GST)
Temporarily out of stock
Phoenix Contact Thermal Circuit Breaker - Single Pole 32V dc Voltage Rating Base Mounting, 20A Current Rating
  • RS Stock No. 609-776
  • Mfr. Part No. 1499969
Each
TWD300.00(exc. GST)
Temporarily out of stock
Hager BFH RCCB, 63A, 4 Pole, 300mA
  • RS Stock No. 602-077
  • Mfr. Part No. BFH866
Each
TWD22,298.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 160A, Breaking Capacity 110 kA, Fixed Mount
  • RS Stock No. 270-4117
  • Mfr. Part No. 3VA2116-7KQ46-0AA0
Each
TWD116,053.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 160A, Breaking Capacity 110 kA, Fixed Mount
  • RS Stock No. 270-4110
  • Mfr. Part No. 3VA2116-7KP36-0AA0
Each
TWD96,471.00(exc. GST)
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 63A 3VA2, 4 channels
  • RS Stock No. 157-237
  • Mfr. Part No. 3VA2163-8KP42-0AA0
Each
TWD98,395.00(exc. GST)
Temporarily out of stock
Schneider Electric Acti9 Distribution Board Enclosure, 250 A
  • RS Stock No. 339-627
  • Mfr. Part No. SEA9BNMETE
Each
TWD55,625.00(exc. GST)
Temporarily out of stock
Schneider Electric, PowerPact B Circuit breaker 4P 40A, Breaking Capacity 18 KA, Clip-On
  • RS Stock No. 119-193
  • Mfr. Part No. BDL46040LU
Each
TWD47,889.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 1P 25A, Breaking Capacity 18 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-315
  • Mfr. Part No. 3VA5125-5ED11-1AA0
Each
TWD8,846.00(exc. GST)
In Stock
Eaton xEffect MCB, 1P, 10A Curve C, 240 → 415V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 922-6908
  • Mfr. Part No. 102087 FAZ-C10/1-NA
Each
TWD1,199.00(exc. GST)
Temporarily out of stock
Eaton xEffect FAZ MCB, 3P, 6A Curve C, 440V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 254-331
  • Mfr. Part No. 240890 FAZT-C6/3
Each
TWD8,238.00(exc. GST)
In Stock
ABB System Pro M Compact S200 MCB, 3P, 100A Curve C, 440V AC, 6 kA Breaking Capacity
  • RS Stock No. 231-9682
  • Mfr. Part No. 2CDS253001R0824 S203-C100 6kA 100A
1 Box of 1
TWD6,682.00(exc. GST)
Temporarily out of stock
Better World
Siemens SENTRON 3VA1 MCB, 2P, 63A
  • RS Stock No. 224-7872
  • Mfr. Part No. 3VA1163-3ED26-0AA0
Each
TWD12,467.00(exc. GST)
Temporarily out of stock
ABB S803S MCB, 3P, 50A, UC-K, 750V DC, 50 kA Breaking Capacity
  • RS Stock No. 140-279
  • Mfr. Part No. 2CCS863001R1577
Each
TWD42,885.00(exc. GST)
Temporarily out of stock
ABB MCCB 3P 100A, Breaking Capacity 65 kA
  • RS Stock No. 192-0839
  • Mfr. Part No. 1SDA067057R1
Each
TWD26,045.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 63A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 271-9611
  • Mfr. Part No. 3VA10633ED460AA0
Each
TWD17,861.00(exc. GST)
In Stock
ABB High Performance S800S MCB, 3P, 80A Curve C, 400V AC, 250V DC, 50 kA Breaking Capacity
  • RS Stock No. 435-504
  • Mfr. Part No. 2CCG001232R0001
Each
TWD7,243.00(exc. GST)
In Stock
HENSEL ENYSTAR Distribution Board, 63 A
  • RS Stock No. 117-449
  • Mfr. Part No. FP 1109
Each
TWD4,803.00(exc. GST)
Temporarily out of stock
Schneider Electric, PowerPact MCCB 1P 40A, Breaking Capacity 65 kA, Clip-On
  • RS Stock No. 341-132
  • Mfr. Part No. BJF16040
Each
TWD26,139.00(exc. GST)
In Stock
Phoenix Contact Electronic Circuit Breaker
  • RS Stock No. 201-6198
  • Mfr. Part No. 2800926
Each
TWD1,732.00(exc. GST)
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