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

52 of 999+
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Eaton xEffect MCB, 2P, 30A Curve C, 240 → 415V AC, 10 kA Breaking Capacity
  • RS Stock No. 847-3342
  • Mfr. Part No. 102173 FAZ-C30/2-NA
Each
THB3,235.74(exc. VAT)
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Schneider Electric EasyPact CVS100...250 Thermal Circuit Breaker - EasyPact CVS 4 Pole 440V ac Voltage Rating Fixed,
  • RS Stock No. 124-533
  • Mfr. Part No. LV510313
Each
THB14,480.27(exc. VAT)
มีในสต็อก
Better World
Schneider Electric Easy 9 EZ9 MCB, 1P, 16A Curve B, 230V AC, 6 kA Breaking Capacity
  • RS Stock No. 850-8603
  • Mfr. Part No. EZ9F16116
Each
THB296.59(exc. VAT)
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Better World
Schneider Electric Multi 9 C60BP MCB, 1P, 20A Curve C, 415V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 211-2411
  • Mfr. Part No. M9F42120
Each
THB2,458.53(exc. VAT)
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Murrelektronik Limited Electronic Circuit Breaker
  • RS Stock No. 123-6694
  • Mfr. Part No. 9000-41042-0401000
Each
THB7,821.49(exc. VAT)
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Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 225A, Breaking Capacity 18.5 kA, Fixed Mount
  • RS Stock No. 258-412
  • Mfr. Part No. 271089 NZMB2-AF225-NA
Each
THB67,830.98(exc. VAT)
สต็อกสุดท้ายของ RS
Mersen Surge Protector
  • RS Stock No. 179-3057
  • Mfr. Part No. 83120145 / STPT12-12K275V-4PM
Each
THB18,831.55(exc. VAT)
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Schneider Electric A9R RCCB, 40A, 4 Pole, 30mA, Type AC, 380 → 415V ac
  • RS Stock No. 655-156
  • Mfr. Part No. A9R41440
Each
THB10,782.80(exc. VAT)
มีในสต็อก
Better World
Schneider Electric Acti 9 3 Phase Busbar, 415V ac, 18mm Pitch
  • RS Stock No. 776-2730
  • Mfr. Part No. A9XPH324
Each
THB2,889.95(exc. VAT)
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Better World
ABB, XT2S MCCB 3P 480A, Fixed Mount
  • RS Stock No. 236-7493
  • Mfr. Part No. 1SDA067768R1 XT2S 160 MA 80 FF
Each
THB14,345.19(exc. VAT)
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Lovato ModuLo P1MB MCB, 1P, 16A Curve B, 230V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 825-5558
  • Mfr. Part No. P1MB1PB16
Each
THB739.58(exc. VAT)
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ETA Thermal Circuit Breaker - 2 5700 Single Pole 250V Voltage Rating Panel Mount, 20A Current Rating
  • RS Stock No. 729-2773
  • Mfr. Part No. 2-5700-IG2-P10-DD-000040-20A
Each
THB1,099.55(exc. VAT)
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Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 800A, Breaking Capacity 34 kA, Fixed Mount
  • RS Stock No. 127-169
  • Mfr. Part No. 179328 N4-4-800-S15-PV-NA
Each
THB304,242.73(exc. VAT)
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Better World
Siemens, Sentron Circuit breaker 3P 150A, DIN Rail Mount
  • RS Stock No. 196-3581
  • Mfr. Part No. 3VA61701MS310AA0
Each
THB31,221.20(exc. VAT)
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Eaton Eaton Moeller Series NZM Adapter for use with N1, NS1, NZM1, PN1
  • RS Stock No. 248-475
  • Mfr. Part No. 104554 NZM1-XAD160
Each
THB5,694.14(exc. VAT)
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Better World
Siemens SENTRON 5SL4 MCB, 1P, 16A Curve B, 10 kA Breaking Capacity
  • RS Stock No. 202-7107
  • Mfr. Part No. 5SL4116-6
Each
THB791.33(exc. VAT)
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Eaton RCBO, 32A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type A, Type B, FRBm6 Range
  • RS Stock No. 123-701
  • Mfr. Part No. 170884 FRBM6-B32/2/003-A
Each
THB7,609.73(exc. VAT)
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ABB Tmax T Shunt Opening Release for use with MCCB
  • RS Stock No. 232-0109
  • Mfr. Part No. 1SDA054873R1 SOR-C 230VAC/DC T4-6
Each
THB5,862.95(exc. VAT)
มีในสต็อก
Eaton xEffect MCB, 3P, 50A Curve C, 240 → 415V AC, 10 kA Breaking Capacity
  • RS Stock No. 847-3406
  • Mfr. Part No. 278878 FAZ-C50/3
Each
THB4,356.70(exc. VAT)
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ABB SN201 MCB, 1+N, 1A Curve C, 230V AC, 4.5 kA Breaking Capacity
  • RS Stock No. 191-9454
  • Mfr. Part No. 2CSS245102R0014
Each
THB923.89(exc. VAT)
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