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

47 of 999+
หมดสต็อกชั่วคราว
Hager NEN MCB, 2P, 6A Curve B, 240 → 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 144-4961
  • Mfr. Part No. NEN206
Each
THB5,950.59(exc. VAT)
หมดสต็อกชั่วคราว
ABB Emax2 Electronic Circuit Breaker 4kA 1SDA07, 4 channels
  • RS Stock No. 259-3824
  • Mfr. Part No. 1SDA071839R1
Each
THB1,178,038.28(exc. VAT)
มีในสต็อก
Eaton Moeller Thermal Magnetic Circuit Breaker - 3 Pole 440V ac Voltage Rating DIN Rail, 200A Current Rating
  • RS Stock No. 221-3489
  • Mfr. Part No. 269216 NZMB2-A200-NA
Each
THB37,812.25(exc. VAT)
มีในสต็อก
RS PRO MCB, 2P, 2A Curve C, 240 → 415V AC, 6 kA Breaking Capacity
  • RS Stock No. 265-0175
Each
THB784.21(exc. VAT)
หมดสต็อกชั่วคราว
Schurter Thermal Circuit Breaker - TA35 3 Pole 240V ac Voltage Rating Snap In, 5A Current Rating
  • RS Stock No. 868-9367
  • Mfr. Part No. 4435.0044
Each: (In a Pack of 10)
THB961.488(exc. VAT)
มีในสต็อก
Legrand, DNX3 MCCB 1P 6A, Breaking Capacity 4.5 kA, DIN Rail Mount
  • RS Stock No. 731-9540
  • Mfr. Part No. 4 067 72
Each
THB2,008.36(exc. VAT)
มีในสต็อก
Phoenix Contact Electronic Device Circuit Breaker Electronic Circuit breaker 4A 24V CBMC, 1 channels , DIN Rail Mount
  • RS Stock No. 207-2718
  • Mfr. Part No. 2906031
Each
THB6,065.20(exc. VAT)
หมดสต็อกชั่วคราว
Eaton AZ MCB, 2P, 80A Curve B, 400V AC, 20 kA Breaking Capacity
  • RS Stock No. 272-0732
  • Mfr. Part No. 174499 AZ-2-B80
Each
THB11,386.42(exc. VAT)
มีในสต็อก
ABB S201L MCB, 1P, 16A Curve C, 230/400V AC, 6 kA Breaking Capacity
  • RS Stock No. 203-770
  • Mfr. Part No. 2CDS241701R0164
Each
THB888.05(exc. VAT)
หมดสต็อกชั่วคราว
ABB Tmax XT Motor Operator for use with MCCB
  • RS Stock No. 231-9361
  • Mfr. Part No. 1SDA104885R1 MOE XT5 220...250V AC/DC
Each
THB38,633.90(exc. VAT)
หมดสต็อกชั่วคราว
ABB Emax 2, Tmax XT Undervoltage Release for use with Circuit Breaker
  • RS Stock No. 231-9305
  • Mfr. Part No. 1SDA067496R1 MA 160 Im=800...1600 XT4 3
Each
THB7,140.42(exc. VAT)
หมดสต็อกชั่วคราว
Phoenix Contact 2 Phase Surge Protector, 10kA, DIN Rail Mount
  • RS Stock No. 201-5575
  • Mfr. Part No. 2906821
Each
THB4,670.44(exc. VAT)
หมดสต็อกชั่วคราว
Better World
Siemens SIRIUS Electronic Circuit Breaker 400mA 3RV2, 3 channels , DIN Rail Mount
  • RS Stock No. 160-097
  • Mfr. Part No. 3RV2311-0EC10
Each
THB4,234.13(exc. VAT)
หมดสต็อกชั่วคราว
Phoenix Contact EC-E4 Electronic Circuit Breaker 6A 24V EC-E, 1 channels , DIN Rail
  • RS Stock No. 131-329
  • Mfr. Part No. 0903036
Each: (In a Pack of 6)
THB3,094.74(exc. VAT)
มีในสต็อก
Legrand RCCB, 40A, 2 Pole, 30mA, Type F, 230V
  • RS Stock No. 266-1361
  • Mfr. Part No. 411644
Each
THB10,587.39(exc. VAT)
หมดสต็อกชั่วคราว
Siemens SENTRON 5SJ4 MCB, 2P, 16A Curve C, 400V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 213-1029
  • Mfr. Part No. 5SJ4216-7HG42
Each
THB5,520.97(exc. VAT)
หมดสต็อกชั่วคราว
Eaton xE?ect - FRCmM-NA RCCB, 40A, 4 Pole, 30mA, Type A, 240/415V ac
  • RS Stock No. 120-320
  • Mfr. Part No. 167102 FRCMM-40/4/003-A-NA
Each
THB9,365.82(exc. VAT)
มีในสต็อก
RS PRO Single Phase Industrial Surge Protector, 50kA, 1.25kV, DIN Rail Mount
  • RS Stock No. 101-802
Each
THB3,121.79(exc. VAT)
มีในสต็อก
Siemens Single Phase Industrial Surge Protection, 16A, 230V (Volts), DIN Rail Mount
  • RS Stock No. 266-9589
  • Mfr. Part No. 5SY1716-2
Each
THB1,507.95(exc. VAT)
หมดสต็อกชั่วคราว
ABB Tmax XT Motor Operator for use with MCCB
  • RS Stock No. 232-0190
  • Mfr. Part No. 1SDA066466R1 MOE XT2-XT4 220...250VAC/D
Each
THB32,559.93(exc. VAT)
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