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
RCDs
RCDs
Surge Protection Devices
Surge Protection Devices
Thermal Breakers
Thermal Breakers

35642 Products showing for Circuit Breakers

51 of 999+
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ABB Surge Protector, 1.5kV, DIN Rail Mount
  • RS Stock No. 289-1631
  • Mfr. Part No. 2CTB803872R1100
Each
THB6,220.11(exc. VAT)
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RS PRO Three Phase Industrial Surge Protector, 50kA, 2kV, DIN Rail Mount
  • RS Stock No. 101-805
Each
THB4,533.79(exc. VAT)
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Siemens, SENTRON MCCB 3P 800A, Breaking Capacity 70 kA, Fixed Mount
  • RS Stock No. 272-0187
  • Mfr. Part No. 3VA1580-6EF32-0AA0
Each
THB112,662.14(exc. VAT)
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Better World
Schneider Electric Acti 9 iC60N MCB, 1P, 3A Curve C, 240V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 776-3430
  • Mfr. Part No. A9F74103
Each
THB2,166.48(exc. VAT)
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Schneider Electric TeSys Auxiliary Contact for use with GV2/GV3 (Except GV3ME)
  • RS Stock No. 211-945
  • Mfr. Part No. GVAED0113
Each
THB1,392.68(exc. VAT)
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ABB RCBO, 10A Current Rating, 1P+N Poles, 300mA Trip Sensitivity, Type C
  • RS Stock No. 183-3705
  • Mfr. Part No. 2CSR245041R3104
Each
THB6,535.43(exc. VAT)
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Weidmuller Electronic Circuit breaker 24V AMG FIM-0, 2 channels , DIN Rail Mount
  • RS Stock No. 179-2988
  • Mfr. Part No. 2081870000
Each
THB220.54(exc. VAT)
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Siemens SENTRON 5SP4 MCB, 2P, 100A Curve D, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 209-6562
  • Mfr. Part No. 5SP4291-8
Each
THB12,713.70(exc. VAT)
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Better World
Schneider Electric Multi 9 MCB, 2P, 2A Curve B, 10 kA Breaking Capacity
  • RS Stock No. 219-9107
  • Mfr. Part No. M9F21202
Each
THB5,167.13(exc. VAT)
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Better World
ABB System Pro M Compact S200 MCB, 2P, 3A Curve D, 400V AC, 125V DC, 10 kA Breaking Capacity
  • RS Stock No. 746-7841
  • Mfr. Part No. 2CDS252001R0031 S202-D3
Each
THB2,499.60(exc. VAT)
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Hager Hager NRN Circuit Breaker, 2P, 40A Curve C, 415V AC, 20 kA Breaking Capacity
  • RS Stock No. 599-704
  • Mfr. Part No. NRN240
Each
THB6,954.39(exc. VAT)
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Eaton xEffect MCB, 1P, 3A Curve C, 240V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 922-7002
  • Mfr. Part No. 278551 FAZ-C3/1
Each
THB1,565.65(exc. VAT)
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nVent ERIFLEX ERIFLEX Busbar Connector
  • RS Stock No. 277-6096
  • Mfr. Part No. 550250
Each: (In a Pack of 100)
THB17.599(exc. VAT)
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Better World
ABB, XT4L MCCB 3P 160A, Fixed Mount
  • RS Stock No. 236-6818
  • Mfr. Part No. 1SDA068564R1 XT4L 160 Ekip LSI 160A FF
Each
THB74,196.19(exc. VAT)
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Eaton, xEnergy MCCB 3P 40A, Breaking Capacity 25 kA
  • RS Stock No. 454-8039
  • Mfr. Part No. 259075 NZMB1-A40
Each
THB17,495.23(exc. VAT)
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Better World
Siemens, SENTRON MCCB 3P 25A, Breaking Capacity 55 kA
  • RS Stock No. 209-6984
  • Mfr. Part No. 3VA1125-5EF32-0AA0
Each
THB16,136.19(exc. VAT)
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Schneider Electric ComPacT NSX Rotary Handle for use with NSX630
  • RS Stock No. 272-7477
  • Mfr. Part No. LV432598T
Each
THB9,607.46(exc. VAT)
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Better World
Siemens, SENTRON MCCB 3P 200A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 209-5075
  • Mfr. Part No. 3VA1220-4EF32-0AA0
Each
THB26,165.55(exc. VAT)
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Schneider Electric, ComPacT New Generation MCCB
  • RS Stock No. 245-112
  • Mfr. Part No. LV429403
Each
THB22,196.35(exc. VAT)
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ABB High Performance S800C MCB, 4P, 32A Curve C, 400 V, 415 V AC, 25 kA Breaking Capacity
  • RS Stock No. 225-5969
  • Mfr. Part No. 2CCS884001R0324 S804C C 32A - 25 KA
Each
THB9,504.82(exc. VAT)
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