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

19 of 999+
มีในสต็อก
Finder 3 Phase Surge Protector, 40kA, 275V ac
  • RS Stock No. 257-7421
  • Mfr. Part No. 7P2482751020
Each
THB6,944.74(exc. VAT)
มีในสต็อก
Endress+Hauser Single Phase Surge Arrester, 9kA, 550V (Volts), DIN Rail Mount
  • RS Stock No. 288-6485
  • Mfr. Part No. HAW562-AAD
Each
THB6,089.87(exc. VAT)
หมดสต็อกชั่วคราว
Eaton xEffect FAZ MCB, 2P, 1A Curve B, 415V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 241-409
  • Mfr. Part No. 132693 FAZ-B1/2-NA
Each
THB4,613.50(exc. VAT)
มีในสต็อก
Better World
Siemens SENTRON 5SY5 MCB, 2P, 10A Curve C, 10 kA Breaking Capacity
  • RS Stock No. 203-2341
  • Mfr. Part No. 5SY5210-7
Each
THB4,927.23(exc. VAT)
มีสต็อกจำกัด
Better World
Siemens Sentron 5SY4 MCB, 3P, 16A Curve C, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 383-2125
  • Mfr. Part No. 5SY4316-7
Each
THB3,611.39(exc. VAT)
หมดสต็อกชั่วคราว
Eaton PFIM RCCB, 63A, 4 Pole, 30mA, Type F, Type G, 230/400V ac
  • RS Stock No. 248-927
  • Mfr. Part No. 187358 PFIM-63/4/003-G/F
Each
THB13,508.01(exc. VAT)
มีในสต็อก
Eaton xEffect MCB, 1P, 32A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 624-0361
  • Mfr. Part No. 278564 FAZ-C32/1
Each
THB883.93(exc. VAT)
มีในสต็อก
Better World
Siemens SENTRON 5SY4 MCB, 1P, 5A Curve C, 400V AC, 72V DC, 5 kA Breaking Capacity
  • RS Stock No. 213-1070
  • Mfr. Part No. 5SY4111-7
Each
THB2,219.85(exc. VAT)
มีในสต็อก
Schurter TA36 Rocker Circuit Breaker - TA36 2 Pole 60 V dc, 277 V ac Voltage Rating, 3A Current Rating
  • RS Stock No. 221-5634
  • Mfr. Part No. 3-128-239
1 Box of 10
THB7,244.50(exc. VAT)
มีในสต็อก
Better World
Schneider Electric Surge Protector, 20kA, DIN Rail Mount
  • RS Stock No. 776-3890
  • Mfr. Part No. A9L16294
Each
THB31,224.00(exc. VAT)
หมดสต็อกชั่วคราว
ABB Tmax XT Shunt Opening Release for use with Circuit Breaker
  • RS Stock No. 231-9364
  • Mfr. Part No. 1SDA104925R1 YO XT5-XT6 24...60 Vac/dc
Each
THB4,401.43(exc. VAT)
มีในสต็อก
Better World
Schneider Electric Multi 9 C60SP MCB, 3P, 20A Curve C, 440V AC, 15 kA Breaking Capacity
  • RS Stock No. 211-2375
  • Mfr. Part No. M9F22320
Each
THB5,683.94(exc. VAT)
มีในสต็อก
Siemens 5SY41 5SY MCB Mini Circuit Breaker, 1P, 6A, Type A, 400V AC, 60V DC, 35 kA Breaking Capacity
  • RS Stock No. 266-9592
  • Mfr. Part No. 5SY4115-5
Each
THB2,059.85(exc. VAT)
มีในสต็อก
Better World
Siemens Sentron 5SY4 MCB, 2P, 16A Curve C, 400V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 772-1319
  • Mfr. Part No. 5SY4216-7
Each
THB4,275.43(exc. VAT)
มีในสต็อก
Schneider Electric RCBO, 20A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type B, Resi9 Range
  • RS Stock No. 212-081
  • Mfr. Part No. R9D01620
Each
THB2,456.58(exc. VAT)
มีในสต็อก
Better World
Siemens SENTRON 5SY5 MCB, 2P, 2A Curve C, 10 kA Breaking Capacity
  • RS Stock No. 203-2182
  • Mfr. Part No. 5SY5202-7
Each
THB5,500.69(exc. VAT)
มีในสต็อก
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 400A, Breaking Capacity 70 kA, Fixed Mount
  • RS Stock No. 231-9330
  • Mfr. Part No. 1SDA100354R1 XT5N 400 EkipDip LS/I 400
Each
THB45,362.04(exc. VAT)
หมดสต็อกชั่วคราว
Eaton xEffect FAZ MCB, 1+N, 3A Curve D, 230V AC, 15 kA Breaking Capacity
  • RS Stock No. 259-593
  • Mfr. Part No. 278687 FAZ-D3/1N
Each
THB2,805.51(exc. VAT)
หมดสต็อกชั่วคราว
ABB 2 Phase Industrial Surge Protector, 100kA, 1.4kV, DIN Rail Mount
  • RS Stock No. 237-6640
  • Mfr. Part No. 2CTB803972R1200
Each
THB7,677.87(exc. VAT)
มีในสต็อก
ABB Tmax XT Changeover Contact for use with Circuit Breaker
  • RS Stock No. 232-0185
  • Mfr. Part No. 1SDA066434R1 AUX-C 3Q+1SY 250V XT2..XT4
Each
THB5,049.22(exc. VAT)
Results per page
1
19
1783

Related links