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

53 of 999+
มีในสต็อก
Eaton Eaton Moeller Enclosure for use with PKZM0
  • RS Stock No. 272-2329
  • Mfr. Part No. 263526 CI-PKZ0-GVM
Each
THB968.06(exc. VAT)
มีในสต็อก
ABB, Formula DSA MCCB 1P 125A, Fixed Mount
  • RS Stock No. 237-6139
  • Mfr. Part No. 1SDA066696R1
Each
THB6,638.15(exc. VAT)
หมดสต็อกชั่วคราว
Eaton xEffect - FRCmM RCCB, 40A, 4 Pole, 300mA, Type A, 240/415V ac
  • RS Stock No. 123-247
  • Mfr. Part No. 170342 FRCMM-40/4/03-A
Each
THB6,878.02(exc. VAT)
หมดสต็อกชั่วคราว
Better World
Schneider Electric Acti 9 C120H MCB, 3P, 80A Curve C, 440V AC, 375V DC, 15 kA, 30 kA Breaking Capacity
  • RS Stock No. 776-3023
  • Mfr. Part No. A9N18468
Each
THB5,742.45(exc. VAT)
มีในสต็อก
RS PRO Industrial Surge Protector, 40kA, 2.8kV, DIN Rail Mount
  • RS Stock No. 101-772
Each
THB1,755.69(exc. VAT)
มีในสต็อก
Better World
Siemens SENTRON 5SY MCB, 1P, 16A Curve D
  • RS Stock No. 232-2328
  • Mfr. Part No. 5SY7116-8
Each
THB1,304.50(exc. VAT)
หมดสต็อกชั่วคราว
Better World
Schneider Electric TeSys Deca Motor Protection Circuit Breaker - 3 Pole 690V Voltage Rating, 65A Current Rating
  • RS Stock No. 256-4181
  • Mfr. Part No. GV3P656
Each
THB27,593.17(exc. VAT)
มีในสต็อก
Siemens Sentron Adapter for use with Busbar
  • RS Stock No. 228-8245
  • Mfr. Part No. 8US1261-5FM08
Each
THB2,058.53(exc. VAT)
มีในสต็อก
ABB, Pro M MCCB 3P 125A, Breaking Capacity 6 kA, DIN Rail Mount
  • RS Stock No. 538-3849
  • Mfr. Part No. 2CDE283001R0125 E203/125R
Each
THB4,731.50(exc. VAT)
หมดสต็อกชั่วคราว
Siemens SENTRON Connection Unit for use with Circuit Breaker Busbar
  • RS Stock No. 269-8412
  • Mfr. Part No. 8US1251-5NT10
Each
THB1,505.25(exc. VAT)
มีในสต็อก
Siemens SENTRON Connection Unit for use with Circuit Breaker Busbar
  • RS Stock No. 269-8409
  • Mfr. Part No. 8US1251-5DS10
Each
THB1,644.76(exc. VAT)
หมดสต็อกชั่วคราว
Eaton Single Phase Surge Protector, 40kA, 1.8kV, DIN Rail Mount
  • RS Stock No. 121-149
  • Mfr. Part No. 167623 SPCT2-385-1+NPE
Each
THB6,878.02(exc. VAT)
มีในสต็อก
Eaton xEffect MCB, 2P, 5A Curve D, 240 → 415V AC, 10 kA Breaking Capacity
  • RS Stock No. 847-3636
  • Mfr. Part No. 102183 FAZ-D5/2-NA
Each
THB7,052.86(exc. VAT)
มีในสต็อก
ABB, SACE Tmax T MCCB Molded Case Circuit Breaker 3P 320A, Breaking Capacity 70 kA, Fixed Mount
  • RS Stock No. 232-0083
  • Mfr. Part No. 1SDA054117R1 T4N320 FF PR221-LS 320A
Each
THB53,376.07(exc. VAT)
หมดสต็อกชั่วคราว
ABB S802S RCCB, 32A, 2 Pole, 690V
  • RS Stock No. 140-762
  • Mfr. Part No. 2CCS802901R0539
Each
THB46,090.55(exc. VAT)
หมดสต็อกชั่วคราว
Eaton xEffect FAZ MCB, 1P, 15A Curve C, 230V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 258-736
  • Mfr. Part No. 278560 FAZ-C15/1
Each
THB1,837.09(exc. VAT)
หมดสต็อกชั่วคราว
ABB Tmax XT Front Terminal for use with Circuit Breaker
  • RS Stock No. 232-0226
  • Mfr. Part No. 1SDA066864R1 F XT4 8PCS
Each
THB3,400.74(exc. VAT)
มีในสต็อก
Eaton xEffect MCB, 2P, 3A Curve D, 240 → 415V AC, 10 kA Breaking Capacity
  • RS Stock No. 847-3579
  • Mfr. Part No. 102181 FAZ-D3/2-NA
Each
THB4,884.17(exc. VAT)
มีในสต็อก
Better World
ABB System Pro M Compact S200 MCB, 4P, 63A Curve C, 400V AC, 110V DC, 6 kA Breaking Capacity
  • RS Stock No. 746-7829
  • Mfr. Part No. 2CDS254001R0634 S204-C63
Each
THB6,924.16(exc. VAT)
มีในสต็อก
Schneider Electric, ComPacT MCCB 3P 400A, Fixed Mount
  • RS Stock No. 260-8090
  • Mfr. Part No. C40F32D400
Each
THB139,536.80(exc. VAT)
Results per page
1
53
1783

Related links