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
Surge Protection Devices
Surge Protection Devices
Thermal Breakers
Thermal Breakers

35874 Products showing for Circuit Breakers

140 of 999+
Better World
ABB System Pro M Compact S200 MCB, 1P, 2A Curve K, 253V AC, 72V DC, 6 kA Breaking Capacity
  • RS Stock No. 514-0096
  • Mfr. Part No. 2CDS251001R0277 S201-K2
Each
TWD1,243.00(exc. GST)
Eaton xEffect FAZ MCB, 4P, 4A Curve D, 415V AC, 60V DC, 25 kA Breaking Capacity
  • RS Stock No. 256-205
  • Mfr. Part No. 240971 FAZT-D4/4
Each
TWD11,801.00(exc. GST)
Better World
Schneider Electric, PowerPact MCCB Molded Case Circuit Breaker 3P 600A
  • RS Stock No. 221-1095
  • Mfr. Part No. NLDF36600U31XTW
Each
TWD204,097.00(exc. GST)
Schneider Electric Acti 9 MCB, 1P, 16A Curve C, 230V AC, 7.5 kA Breaking Capacity
  • RS Stock No. 200-6168
  • Mfr. Part No. A9PE2616
Each
TWD1,369.00(exc. GST)
Better World
Schneider Electric RCBO, 25A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 239-9965
  • Mfr. Part No. A9DX3625
Each
TWD11,971.00(exc. GST)
Eaton Restarting Device for use with Accessory For Miniature Circuit Breaker, Accessory For Residual Current Circuit
  • RS Stock No. 259-090
  • Mfr. Part No. 290171 Z-FW-LP/MO
Each
TWD32,414.00(exc. GST)
Better World
Siemens Sentron 5SY4 MCB, 1P, 10A Curve B, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 383-1964
  • Mfr. Part No. 5SY4110-6
Each
TWD381.00(exc. GST)
Better World
Schneider Electric, Masterpact MCCB 4P 2.5kA, Fixed Mount
  • RS Stock No. 248-3806
  • Mfr. Part No. LV848306
Each
TWD934,717.00(exc. GST)
Eaton xEffect FAZ MCB, 4P, 13A Curve K, 400V AC, 60V DC, 7.5 kA Breaking Capacity
  • RS Stock No. 259-140
  • Mfr. Part No. 279098 FAZ-K13/4
Each
TWD7,778.00(exc. GST)
ETA Thermal Circuit Breaker - 3120-N 5 Pole 50 V DC, 240 V AC Voltage Rating, 10A Current Rating
  • RS Stock No. 210-2084
  • Mfr. Part No. 3120-N551-H7T1-W02D-10A
Each
TWD914.00(exc. GST)
Better World
Schneider Electric TeSys Thermal Circuit Breaker - TeSyS GV 3 Pole 690V ac Voltage Rating, 3.5A Current Rating
  • RS Stock No. 175-1492
  • Mfr. Part No. GV4P03N
Each
TWD42,182.00(exc. GST)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 16A, Breaking Capacity 16 kA, DIN Rail Mount
  • RS Stock No. 271-9626
  • Mfr. Part No. 3VA10962ED420AA0
Each
TWD15,619.00(exc. GST)
ABB Tmax XT Extended Front Terminal for use with Circuit Breaker
  • RS Stock No. 231-9358
  • Mfr. Part No. 1SDA104738R1 ES XT5 3pcs
Each
TWD2,668.00(exc. GST)
Eaton xEffect MCB, 1P, 4A Curve C, 240 → 415V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 922-6894
  • Mfr. Part No. 102082 FAZ-C4/1-NA
Each
TWD1,279.00(exc. GST)
Eaton Blanking Strip for use with Bf Flat Distribution Board, Eco Distribution Board, Ewk Distribution Board, Klv
  • RS Stock No. 241-537
  • Mfr. Part No. 178977 BS-12MB-WH
1 Pack of 10
TWD1,256.00(exc. GST)
Better World
Schneider Electric Acti 9 iC60N MCB, 1P, 3A Curve C, 240V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 776-3430
  • Mfr. Part No. A9F74103
Each
TWD2,028.00(exc. GST)
Eaton xEffect MCB, 3+N, 6A Curve B, 415V AC, 60V DC, 6 kA Breaking Capacity
  • RS Stock No. 230-0922
  • Mfr. Part No. 239155 FAZ6-B6/3N
Each
TWD2,094.00(exc. GST)
Eaton xEffect FAZ MCB, 3P, 32A Curve C, 415V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 248-629
  • Mfr. Part No. 102254 FAZ-C32/3-NA
Each
TWD8,659.00(exc. GST)
Eaton xEffect FAZ MCB, 3P, 6A Curve C, 415V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 241-221
  • Mfr. Part No. 102284 FAZ-C6/3-RT
Each
TWD8,736.00(exc. GST)
Phoenix Contact Surge Protector, 20kA, On Base Element Mount
  • RS Stock No. 201-4035
  • Mfr. Part No. 2909596
Each
TWD2,446.00(exc. GST)
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