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

39184 Products showing for Circuit Breakers

376 of 999+
Temporarily out of stock
Better World
ABB, XT2V MCCB 4P 50A, Fixed Mount
  • RS Stock No. 236-7446
  • Mfr. Part No. 1SDA067708R1 XT2V 160 TMA 50A FF
Each
€1,109.19(exc. VAT)
Temporarily out of stock
Eaton IZMX/INX Undervoltage Release for use with INX16..., INX40..., IZMX16..., IZMX40...
  • RS Stock No. 132-449
  • Mfr. Part No. 184114 IZMX-UVR110AD-1
Each
€324.00(exc. VAT)
In Stock
Phoenix Contact 1 Phase Surge Arrester, 50kA, 1.8kV, DIN Rail Mount
  • RS Stock No. 890-3736
  • Mfr. Part No. 2905333
Each
€189.23(exc. VAT)
Temporarily out of stock
ABB Tmax XT Trip Unit for use with Tmax XT
  • RS Stock No. 236-7240
  • Mfr. Part No. 1SDA067495R1 MA 125 Im=625...1250 XT4 3
Each
€402.00(exc. VAT)
In Stock
Better World
Schneider Electric, Acti 9, 63A, Energy Sensor, 1VA, Wireless
  • RS Stock No. 134-8658
  • Mfr. Part No. A9MEM1520
Each
€131.02(exc. VAT)
Temporarily out of stock
Allen Bradley 1492-RCDA RCD, 25A, 1+N Pole, 100mA, Type A
  • RS Stock No. 136-8600
  • Mfr. Part No. 1492-RCDA2B25
Each
€130.45(exc. VAT)
Temporarily out of stock
Sensata Airpax Airpax Thermal Circuit Breaker - AP17 2 Pole Panel Mount, 10A Current Rating
  • RS Stock No. 275-0176
  • Mfr. Part No. AP17-1R-65F-103
Each
€589.04(exc. VAT)
In Stock
Better World
ABB Compact Home SH200 MCB, 1P, 2A Curve C, 253V AC, 6 kA Breaking Capacity
  • RS Stock No. 231-9651
  • Mfr. Part No. 2CDS211001R0024 SH201-C 2
1 Box of 1
€18.57(exc. VAT)
Temporarily out of stock
Siemens Sentron Remote Controlled Mechanism for use with Miniature Circuit Breakers
  • RS Stock No. 187-5158
  • Mfr. Part No. 5ST3057
Each
€744.28(exc. VAT)
Temporarily out of stock
Siemens SENTRON Current Transformer for use with 3VA2
  • RS Stock No. 210-9371
  • Mfr. Part No. 3VA9307-0NA10
Each
€498.25(exc. VAT)
Temporarily out of stock
Allen Bradley, 140G MCCB 3P 125A, Module Frame Mount
  • RS Stock No. 261-2818
  • Mfr. Part No. 140G-G2C3-C25
Each
€230.24(exc. VAT)
In Stock
Schneider Electric Single Phase Surge Arrester, 20kA, 460V (Volts), Clip-On Mount
  • RS Stock No. 130-972
  • Mfr. Part No. A9L20321
Each
€802.90(exc. VAT)
Temporarily out of stock
Siemens SENTRON 3VA9 Wire Connector for use with 3VA1 160
  • RS Stock No. 218-1794
  • Mfr. Part No. 3VA9114-0QE00
Each
€69.66(exc. VAT)
Temporarily out of stock
Schneider Electric PowerPact H Nut for use with Circuit Breaker
  • RS Stock No. 438-901
  • Mfr. Part No. S37428
1 Pack of 2
€108.60(exc. VAT)
In Stock
Better World
Schneider Electric MCCB 4P 16 → 160A
  • RS Stock No. 178-7876
  • Mfr. Part No. LV426913
Each
€33.48(exc. VAT)
Temporarily out of stock
ABB SMISSLINE TP MCB, 3P, 3A Curve C, 415V AC
  • RS Stock No. 246-2629
  • Mfr. Part No. 2CCS573001R0034
Each
€163.78(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric, Masterpact MCCB 4P 1kA, Fixed Mount
  • RS Stock No. 248-3763
  • Mfr. Part No. LV847135
Each
€8,500.36(exc. VAT)
Temporarily out of stock
Eaton Z-NHW-SLS-00-185/185-SADD Busbar Adapter
  • RS Stock No. 127-788
  • Mfr. Part No. 179764 Z-NHW-SLS-00-185/185-SADD
Each
€49.70(exc. VAT)
In Stock
ABB Tmax Auxiliary Contact for use with Tmax T
  • RS Stock No. 237-5985
  • Mfr. Part No. 1SDA054919R1 AUP-R T4-T5 400V AC/DC
Each
€26.55(exc. VAT)
Temporarily out of stock
Eaton Eaton Moeller NZM Undervoltage Release for use with N(S)2(-4), N(S)3(-4), NZM2(-4), NZM3(-4)
  • RS Stock No. 254-775
  • Mfr. Part No. 259503 NZM2/3-XU480-525AC
Each
€159.00(exc. VAT)
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