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

37 of 999+
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Better World
Schneider Electric Acti 9 Acti9 iDT40T MCB, 1+N, 40A Curve B, 230V AC
  • RS Stock No. 238-3362
  • Mfr. Part No. A9P12640
Each
THB4,284.91(exc. VAT)
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Schneider Electric RCBO, 10A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type AC, Acti9 Range
  • RS Stock No. 276-9124
  • Mfr. Part No. A9D07210
Each
THB25,876.24(exc. VAT)
มีในสต็อก
Schneider Electric Multi9 M9F MCB, 1P, 15A, Type Z, 240V AC, 60V DC, 14 kA Breaking Capacity
  • RS Stock No. 288-1401
  • Mfr. Part No. M9F44115
Each
THB4,199.00(exc. VAT)
หมดสต็อกชั่วคราว
Schneider Electric ComPact Auxiliary Contact for use with NS630b to NS3200
  • RS Stock No. 275-6652
  • Mfr. Part No. 33012
Each
THB2,319.87(exc. VAT)
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ABB System Pro M Compact S200 M UC MCB, 3P, 50A Curve C, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS Stock No. 204-386
  • Mfr. Part No. 2CDS273061R0504
Each
THB28,861.35(exc. VAT)
มีในสต็อก
Better World
Siemens SENTRON 5SY6 MCB, 3P, 63A Curve C, 400V AC, 72V DC, 5 kA Breaking Capacity
  • RS Stock No. 212-8893
  • Mfr. Part No. 5SY6363-7
Each
THB8,125.86(exc. VAT)
หมดสต็อกชั่วคราว
Hager NGN MCB, 4P, 2A Curve D, 230 → 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 144-4770
  • Mfr. Part No. NGN402
Each
THB13,370.44(exc. VAT)
มีในสต็อก
Better World
Siemens SENTRON 5SY4 MCB, 3+N, 16A Curve C, 400V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 209-6007
  • Mfr. Part No. 5SY4616-7
Each
THB6,653.40(exc. VAT)
มีในสต็อก
Better World
Schneider Electric Acti 9 IC60L MCB, 1P, 6A Curve K, 230V AC, 72V DC, 20 kA, 15 kA Breaking Capacity
  • RS Stock No. 212-0142
  • Mfr. Part No. A9F95106
Each
THB5,033.41(exc. VAT)
หมดสต็อกชั่วคราว
Eaton MCB, 2P, 4A Curve B, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 240-540
  • Mfr. Part No. 101288 PLI-B4/2
Each
THB3,083.98(exc. VAT)
มีในสต็อก
Phoenix Contact TRABTECH Thermal Circuit Breaker - CB TM1 2A F1 P Single Pole, 2A Current Rating
  • RS Stock No. 768-0921
  • Mfr. Part No. 2800859
Each
THB1,583.08(exc. VAT)
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Siemens SENTRON 3VA9 Rotary Operator for use with 3VA15/25 1000
  • RS Stock No. 218-1868
  • Mfr. Part No. 3VA9687-0FK21
Each
THB13,789.80(exc. VAT)
หมดสต็อกชั่วคราว
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 63A, Fixed Mount
  • RS Stock No. 232-0239
  • Mfr. Part No. 1SDA067069R1 XT2N 160 Ekip LSI 63A FF
Each
THB45,877.26(exc. VAT)
หมดสต็อกชั่วคราว
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 50A, Breaking Capacity 18.5 kA, Plug In
  • RS Stock No. 230-350
  • Mfr. Part No. 112704 NZMB1-A50-SVE
Each
THB19,160.59(exc. VAT)
หมดสต็อกชั่วคราว
Phoenix Contact 1 Phase Surge Protector, 40kA, DIN Rail Mount
  • RS Stock No. 207-2701
  • Mfr. Part No. 2905341
Each
THB9,477.70(exc. VAT)
หมดสต็อกชั่วคราว
Eaton RCBO, 32A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type A, Type C, FRBmM Range
  • RS Stock No. 123-656
  • Mfr. Part No. 170791 FRBM6-C32/2/003-A
Each
THB7,463.39(exc. VAT)
หมดสต็อกชั่วคราว
Lovato Single Phase Surge Protector, 100kA, DIN Rail Mount
  • RS Stock No. 248-5665
  • Mfr. Part No. SA1B3PA320R
Each
THB31,944.62(exc. VAT)
หมดสต็อกชั่วคราว
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 50A, Fixed Mount
  • RS Stock No. 231-9324
  • Mfr. Part No. 1SDA074641R1 XT1N 125 TMF 50-500 3p F F
Each
THB15,196.83(exc. VAT)
หมดสต็อกชั่วคราว
Siemens Surge Arrester
  • RS Stock No. 226-1626
  • Mfr. Part No. 5SD7424-2
Each
THB17,573.22(exc. VAT)
มีในสต็อก
Siemens SENTRON 5SP4 MCB, 1P, 125A Curve C, 400V AC
  • RS Stock No. 212-8882
  • Mfr. Part No. 5SP4192-7
Each
THB3,087.60(exc. VAT)
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