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

186 of 999+
Temporarily out of stock
Better World
ABB, XT2S MCCB 4P 25A, Fixed Mount
  • RS Stock No. 236-7525
  • Mfr. Part No. 1SDA067846R1 XT2S 160 Ekip LSI 25A FF
Each
TWD52,586.00(exc. GST)
Temporarily out of stock
Eaton xEffect FAZ MCB, 1P, 63A Curve K, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 259-712
  • Mfr. Part No. 278605 FAZ-K63/1
Each
TWD3,215.00(exc. GST)
In Stock
Inventronics Surge Protector, 5kA, 10kV, Surface Mount Mount
  • RS Stock No. 285-370
  • Mfr. Part No. PU-10KD05KBTA
Each
TWD330.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 150A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 268-614
  • Mfr. Part No. 3VA6115-6KP31-0AA0
Each
TWD91,955.00(exc. GST)
Temporarily out of stock
Eaton Three Phase Surge Protector, 12.5kA, 1.5kV, DIN Rail Mount
  • RS Stock No. 120-841
  • Mfr. Part No. 158332 SPBT12-280-3+NPE
Each
TWD30,282.00(exc. GST)
Temporarily out of stock
Eaton xEffect RCCB, 40A, 4 Pole, 100mA, Type B, 240V ac
  • RS Stock No. 246-640
  • Mfr. Part No. 187804 FRCMM-40/4/01-B
Each
TWD32,442.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 800A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 250-063
  • Mfr. Part No. 3VA6580-7JP36-2AA0
Each
TWD287,359.00(exc. GST)
Currently unavailable
Schneider Electric EasyPact Electronic Circuit Breaker 100A, Fixed
  • RS Stock No. 122-542
  • Mfr. Part No. LV510727
Each
TWD16,210.00(exc. GST)
In Stock
Eaton xEffect MCB, 1P, 2A Curve D
  • RS Stock No. 230-1021
  • Mfr. Part No. 177484 FAZ6-D2/1
Each
TWD1,378.00(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 5kA Ekip G Hi-Touch LSIG, 4 channels
  • RS Stock No. 259-3890
  • Mfr. Part No. 1SDA071910R1
Each
TWD1,924,537.00(exc. GST)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 250A, Breaking Capacity 5 kA, Fixed Mount
  • RS Stock No. 259-055
  • Mfr. Part No. 271130 NZMN2-VEF250-NA
Each
TWD80,269.00(exc. GST)
Temporarily out of stock
Siemens ALPHA Distribution Board
  • RS Stock No. 272-0280
  • Mfr. Part No. 8GK1061-2KK20
Each
TWD25,796.00(exc. GST)
Currently unavailable
Schneider Electric EasyPact Electronic Circuit Breaker 500A, Fixed
  • RS Stock No. 122-335
  • Mfr. Part No. LV563554
Each
TWD19,069.00(exc. GST)
Temporarily out of stock
Schneider Electric, Compact MCCB 4P 630A, Breaking Capacity 30 kA
  • RS Stock No. 354-519
  • Mfr. Part No. C063H4WM
Each
TWD127,160.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric Horizontal Distribution Busbar Trunking, 2m, 1000A, Canalis KS Series
  • RS Stock No. 211-0447
  • Mfr. Part No. KSA1000ED4206
Each
TWD70,442.00(exc. GST)
Temporarily out of stock
Eaton RCBO, 20A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type A, Type B, FRBmM Range
  • RS Stock No. 123-343
  • Mfr. Part No. 170889 FRBMM-B20/2/003-LIA
Each
TWD6,032.00(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 4kA 1SDA07, 3 channels
  • RS Stock No. 259-4420
  • Mfr. Part No. 1SDA072600R1
Each
TWD1,161,085.00(exc. GST)
Temporarily out of stock
SENTRON Connection Unit for use with 3VA41 Three 1 Pole 3VA Breakers
  • RS Stock No. 263-887
  • Mfr. Part No. 3VA9033-0LB20
Each
TWD2,073.00(exc. GST)
Temporarily out of stock
Eaton xEffect FAZ MCB, 3P, 1.6A Curve B, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 258-753
  • Mfr. Part No. 278834 FAZ-B1,6/3
Each
TWD5,287.00(exc. GST)
Temporarily out of stock
Schneider Electric, TCE Circuit Breaker Accessory 400 → 600A
  • RS Stock No. 119-382
  • Mfr. Part No. LV833576SP
Each
TWD37,923.00(exc. GST)
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