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

1719 of 999+
Temporarily out of stock
Better World
Siemens SENTRON 5SY4 MCB, 4P, 8A Curve C, 400V AC, 72V DC, 5 kA Breaking Capacity
  • RS Stock No. 213-1071
  • Mfr. Part No. 5SY4408-7
Each
TWD5,880.00(exc. GST)
Temporarily out of stock
Schneider Electric Multi9 M9F1 MCB, 4P, 16A Curve B, 440V AC, 250V DC, 6 kA Breaking Capacity
  • RS Stock No. 212-191
  • Mfr. Part No. M9F10416
Each
TWD4,739.00(exc. GST)
In Stock
Better World
Siemens SENTRON 5SL4 MCB, 1P, 4A Curve B, 10 kA Breaking Capacity
  • RS Stock No. 202-7171
  • Mfr. Part No. 5SL4104-6
Each
TWD911.00(exc. GST)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 5 kA, Fixed Mount
  • RS Stock No. 240-963
  • Mfr. Part No. 192030 NZMS2-AX100
Each
TWD32,222.00(exc. GST)
Temporarily out of stock
Eaton xEffect FAZ MCB, 3P, 7A Curve C, 415V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 240-603
  • Mfr. Part No. 102285 FAZ-C7/3-RT
Each
TWD8,736.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 1P 16A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 341-502
  • Mfr. Part No. C10F1TM016
Each
TWD17,911.00(exc. GST)
Temporarily out of stock
ABB MCCB Molded Case Circuit Breaker 4P 400A, Fixed Mount
  • RS Stock No. 250-4130
  • Mfr. Part No. 1SDA054395R1
Each
TWD244,804.00(exc. GST)
In Stock
Europa EUC1P EUC MCB, 1P, 1A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 849-6493
  • Mfr. Part No. EUC1P1C
Each
TWD318.00(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. 271-9651
  • Mfr. Part No. 3VA11103GE460AA0
Each
TWD24,509.00(exc. GST)
Temporarily out of stock
Better World
Siemens SENTRON 5SL6 MCB, 2P, 16A Curve B, 6 kA Breaking Capacity
  • RS Stock No. 202-7190
  • Mfr. Part No. 5SL6216-6
Each
TWD1,975.00(exc. GST)
In Stock
Better World
Schneider Electric Acti 9 IC60L MCB, 3P, 4A, 440V AC, 15 kA Breaking Capacity
  • RS Stock No. 212-0118
  • Mfr. Part No. A9F90304
Each
TWD8,409.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 160A, Fixed Mount
  • RS Stock No. 260-7933
  • Mfr. Part No. C25N32D160
Each
TWD68,157.00(exc. GST)
Temporarily out of stock
ABB S302 MCB, 2P, 16A Curve D, 415V AC, 125V DC, 100 kA Breaking Capacity
  • RS Stock No. 201-303
  • Mfr. Part No. 2CDS382001R0161
Each
TWD7,837.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 70A, Breaking Capacity 5 kA, Fixed Mount
  • RS Stock No. 147-537
  • Mfr. Part No. 3VA5170-4ED41-0AA0
Each
TWD22,793.00(exc. GST)
In Stock
Schneider Electric Acti9 A9F76 MCB, 4P, 10A, 440V AC, 250V DC, 6000 A Breaking Capacity
  • RS Stock No. 276-8721
  • Mfr. Part No. A9F76410
Each
TWD7,600.00(exc. GST)
Temporarily out of stock
ABB System Pro M Compact S200 M UC MCB, 4P, 15A Curve K, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS Stock No. 201-100
  • Mfr. Part No. 2CDS274061R0457
Each
TWD22,479.00(exc. GST)
Temporarily out of stock
ABB S800S MCB, 4P, 20A Curve D, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 141-267
  • Mfr. Part No. 2CCS864001R0201
Each
TWD36,076.00(exc. GST)
Temporarily out of stock
Eaton RCBO, 40A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type A, Type B, FRBm6 Range
  • RS Stock No. 123-703
  • Mfr. Part No. 170885 FRBM6-B40/2/003-A
Each
TWD6,606.00(exc. GST)
Temporarily out of stock
Schneider Electric RCBO, 25A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type B, Acti9 Range
  • RS Stock No. 339-788
  • Mfr. Part No. SEE125B03
Each
TWD6,026.00(exc. GST)
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 400A 3VA, 4 channels
  • RS Stock No. 156-715
  • Mfr. Part No. 3VA2340-8JQ42-0AA0
Each
TWD210,085.00(exc. GST)
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