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

35885 Products showing for Circuit Breakers

4 of 999+
Eaton xEffect FAZ MCB, 1P, 1A Curve C, 240V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 922-6995
  • Mfr. Part No. 278546 FAZ-C1/1
Each
TWD827.00(exc. GST)
Contactum 3 Phase Surge Protector, 40kA, DIN Rail Mount
  • RS Stock No. 201-0763
  • Mfr. Part No. DDB-T2S4031KIT
Each
TWD6,236.00(exc. GST)
Better World
Schneider Electric Acti 9 iC60H MCB, 1P, 2A Curve C, 100 → 133V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3284
  • Mfr. Part No. A9F54102
Each
TWD1,110.00(exc. GST)
Eaton xEffect MCB, 1+N, 4A Curve C
  • RS Stock No. 230-0976
  • Mfr. Part No. 239058 FAZ6-C4/1N
Each
TWD2,515.00(exc. GST)
ABB DDA202 RCD, 63A, 2 Pole, 30mA
  • RS Stock No. 231-9888
  • Mfr. Part No. 2CSB202001R1630 DDA202 AC-63/0.03
Each
TWD5,089.00(exc. GST)
Better World
Schneider Electric Multi 9 MCB, 2P, 2A Curve C, 10 kA Breaking Capacity
  • RS Stock No. 219-9121
  • Mfr. Part No. M9F22202
Each
TWD6,387.00(exc. GST)
ABB System Pro M Compact S200M MCB, 1P, 32A Curve D, 230V AC, 72V DC, 15 kA Breaking Capacity
  • RS Stock No. 746-8141
  • Mfr. Part No. 2CDS271001R0321 S201M-D32
Each
TWD751.00(exc. GST)
ABB RCBO, 10A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, System Pro M Compact Range
  • RS Stock No. 914-4042
  • Mfr. Part No. 2CSR255051R1104 DSE201 C10 AC30 - N Blue
Each
TWD2,505.00(exc. GST)
Better World
Schneider Electric Multi 9 N40N MCB, 1P, 6A Curve C, 10 kA Breaking Capacity
  • RS Stock No. 214-2092
  • Mfr. Part No. M9P22606
Each
TWD2,239.00(exc. GST)
ABB System Pro M Compact S200M MCB, 3P, 10A Curve C, 440V AC, 12V DC, 10 kA Breaking Capacity
  • RS Stock No. 535-4267
  • Mfr. Part No. 2CDS273001R0104 S203M-C10
Each
TWD3,028.00(exc. GST)
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)
Better World
Siemens, SENTRON MCCB 3P 20A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 874-4222
  • Mfr. Part No. 3VA1120-3ED36-0AA0
Each
TWD13,015.00(exc. GST)
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 270-3611
  • Mfr. Part No. 3VA2010-8JP32-0AA0
Each
TWD67,663.00(exc. GST)
Schneider Electric RCBO, 16A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type AC, Acti9 Range
  • RS Stock No. 276-8718
  • Mfr. Part No. A9D07216
Each
TWD16,892.00(exc. GST)
Better World
Schneider Electric Acti 9 iC60H MCB, 2P, 16A Curve C, 440V AC, 100 → 133V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3344
  • Mfr. Part No. A9F54216
Each
TWD3,883.00(exc. GST)
Better World
Schneider Electric ID RCCB, 40A, 4 Pole, 300mA, Type AC, 415V ac
  • RS Stock No. 214-2100
  • Mfr. Part No. M9R14440
Each
TWD4,183.00(exc. GST)
Better World
Schneider Electric Multi 9 MCB, 1P, 4A Curve B, 10 kA Breaking Capacity
  • RS Stock No. 219-9106
  • Mfr. Part No. M9F21104
Each
TWD3,632.00(exc. GST)
Eaton Circuit Breaker - NZM..-ME..NA 3 Pole 690V ac Voltage Rating, 200A Current Rating
  • RS Stock No. 250-9705
  • Mfr. Part No. 118966 NZMN2-ME200-NA
Each
TWD85,378.00(exc. GST)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 63A, Breaking Capacity 5 kA, Fixed Mount
  • RS Stock No. 255-582
  • Mfr. Part No. 265744 NZMH2-S63
Each
TWD18,314.00(exc. GST)
Siemens Single Phase Industrial Surge Protection, 2A, 230V (Volts), DIN Rail Mount
  • RS Stock No. 266-9578
  • Mfr. Part No. 5SY1702-4
Each
TWD1,409.00(exc. GST)
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