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

1726 of 999+
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 125A, Breaking Capacity 10 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-279
  • Mfr. Part No. 3VA5112-6ED41-0AA0
Each
TWD44,315.00(exc. GST)
Siemens SENTRON Terminal Cover for use with 3VA11
  • RS Stock No. 159-467
  • Mfr. Part No. 3VA9153-0KB03
Each
TWD736.00(exc. GST)
Eaton xEffect - FBSmV RCCB, 63A, 3 Pole, Type S, 240/415V ac
  • RS Stock No. 121-232
  • Mfr. Part No. 170151 FBSMV-63/3/1-S
Each
TWD12,269.00(exc. GST)
Siemens SENTRON Communication Module for use with 3VA
  • RS Stock No. 210-9419
  • Mfr. Part No. 3VA9987-0TA20
Each
TWD32,123.00(exc. GST)
Schneider Electric, ComPacT New generation MCCB 4P 25A, Breaking Capacity 440 V, Fixed Mount
  • RS Stock No. 205-307
  • Mfr. Part No. C11N44V025B
Each
TWD115,893.00(exc. GST)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 600A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 249-633
  • Mfr. Part No. 3VA6560-7KT46-0AA0
Each
TWD295,788.00(exc. GST)
Schneider Electric, ComPacT MCCB 3P 100A, Fixed Mount
  • RS Stock No. 260-7955
  • Mfr. Part No. C25R32D100
Each
TWD98,760.00(exc. GST)
Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 630A, Breaking Capacity 9 kA, Plug In
  • RS Stock No. 253-185
  • Mfr. Part No. 192347 NZMH3-PX630-SVE
Each
TWD175,251.00(exc. GST)
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 270-3550
  • Mfr. Part No. 3VA2010-6HM32-0AA0
Each
TWD93,199.00(exc. GST)
Eaton xEffect - FRCmM RCCB, 100A, 2 Pole, 30mA, Type A, 110V
  • RS Stock No. 127-430
  • Mfr. Part No. 180611 FRCMM-100/2/003-A-110
Each
TWD28,969.00(exc. GST)
ABB SU200 M MCB, 3P, 8A Curve C, 400V AC, 15 kA Breaking Capacity
  • RS Stock No. 201-078
  • Mfr. Part No. 2CDS273337R0084
Each
TWD12,094.00(exc. GST)
Schneider Electric, PowerPact MCCB 4P 35A, Breaking Capacity 65 kA, Clip-On
  • RS Stock No. 428-856
  • Mfr. Part No. BJF46035
Each
TWD60,101.00(exc. GST)
Eaton RCBO, 16A Current Rating, 1+N Poles, 30mA Trip Sensitivity, Type B, xEffect Range
  • RS Stock No. 251-862
  • Mfr. Part No. 193480 FRBmM-B16/1N/003-F
Each
TWD9,617.00(exc. GST)
ABB SU200 M MCB, 2P, 200mA Curve K, 440V AC, 96V DC, 15 kA Breaking Capacity
  • RS Stock No. 200-076
  • Mfr. Part No. 2CDS272337R0087
Each
TWD10,005.00(exc. GST)
Better World
ABB, Tmax XT MCCB 4P 6.3A, Fixed Mount
  • RS Stock No. 236-7386
  • Mfr. Part No. 1SDA067611R1 XT2H 160 TMD 6.3A FF
Each
TWD15,575.00(exc. GST)
ABB Tmax XT Trip Unit for use with Tmax XT
  • RS Stock No. 236-7229
  • Mfr. Part No. 1SDA067269R1 TMG 125-375 XT2 3p
Each
TWD8,412.00(exc. GST)
Eaton, Eaton Moeller series NZM MCCB Molded Case Circuit Breaker 4P 250A, Breaking Capacity 5 kA, Plug In
  • RS Stock No. 231-135
  • Mfr. Part No. 113280 NZMN2-4-VE250-SVE
Each
TWD86,438.00(exc. GST)
Europa EUC1P EUC MCB, 1P, 2A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 849-6496
  • Mfr. Part No. EUC1P2C
Each
TWD399.00(exc. GST)
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 270-3947
  • Mfr. Part No. 3VA2110-5MP36-0AA0
Each
TWD89,075.00(exc. GST)
Better World
Schneider Electric RCBO, 10A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 238-3320
  • Mfr. Part No. A9DS1610
Each
TWD10,419.00(exc. GST)
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