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

36160 Products showing for Circuit Breakers

1 of 999+
In Stock
Siemens SENTRON 5SY4 Miniature Circuit Breaker, 3-Pole, 32 A, Type D, 400 V ac AC, 60 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 772-1385
  • Mfr. Part No. 5SY4332-8
Subtotal (1 unit)
TWD5,744.00(exc. GST)
Limited stock
ABB FH200 Series Residual Current Circuit Breaker, 25 A, 2-Pole, 30 mA, Type AC, 1 kA 230 V ac
  • RS Stock No. 186-3455
  • Mfr. Part No. 2CSF202002R1250 FH202 AC-25/0,03
Subtotal (1 unit)
TWD2,054.00(exc. GST)
In Stock
Europa EUC3P EUC3P Miniature Circuit Breaker, 3-Pole, 50 A, Type C, 400 V ac AC, 10 kA Breaking Capacity
  • RS Stock No. 849-6604
  • Mfr. Part No. EUC3P50C
Subtotal (1 unit)
TWD747.00(exc. GST)
In Stock
Better World
Schneider Electric IID Series Residual Current Circuit Breaker, 63 A, 4-Pole, 300 mA, Type B-SI, 63 A 400 V ac
  • RS Stock No. 248-3725
  • Mfr. Part No. A9Z64463
Subtotal (1 unit)
TWD65,022.00(exc. GST)
In Stock
Better World
Schneider Electric Residual Current Circuit Breaker with Overload Protection, 16 A Current Rating, 1-Pole, 30 mA Trip
  • RS Stock No. 790-9294
  • Mfr. Part No. A9D11816
Subtotal (1 unit)
TWD6,256.00(exc. GST)
In Stock
ABB ON-OFF Switch Circuit Trip for use with Push Buttons and Indicator Lights
  • RS Stock No. 231-9543
  • Mfr. Part No. 2CCA703005R0001 2F E211-16-20
Subtotal (1 box of 1 unit)
TWD704.00(exc. GST)
In Stock
ETA Thermal Overcurrent Circuit Breakers 2-5700 Thermal Circuit Breaker - 1-Pole, Panel, 7 A Current Rating, 7 A, 250 V
  • RS Stock No. 405-9135
  • Mfr. Part No. 2-5700-IG1-P10-DD-000040-7A
Subtotal (1 unit)
TWD931.00(exc. GST)
In Stock
ABB System Pro M Compact S200M Miniature Circuit Breaker, 3-Pole, 32 A, Type C, 440 V ac AC, 12 V dc DC, 10 kA Breaking
  • RS Stock No. 535-4318
  • Mfr. Part No. 2CDS273001R0324 S203M-C32
Subtotal (1 unit)
TWD3,028.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric Connecting Cable for use with ComPact NSX DC, Compact NSX
  • RS Stock No. 221-1247
  • Mfr. Part No. LV432523
Subtotal (1 unit)
TWD1,450.00(exc. GST)
Temporarily out of stock
ABB Emax2 1SDA07 Electronic Circuit Breaker 4000 A 690 V, 3 channels Ekip Dip LSI Release
  • RS Stock No. 259-3314
  • Mfr. Part No. 1SDA071222R1
Subtotal (1 unit)
TWD1,036,734.00(exc. GST)
In Stock
Siemens SENTRON 5SY4 Miniature Circuit Breaker, 2-Pole, 1 A, Type D, 400 V ac AC, 60 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 124-3162
  • Mfr. Part No. 5SY4201-8
Subtotal (1 unit)
TWD2,657.00(exc. GST)
In Stock
ABB ComPact Home SH200 Miniature Circuit Breaker, 2-Pole, 16 A, Type C, 400 V ac AC, 400 V dc DC, 6 kA Breaking Capacity
  • RS Stock No. 231-9656
  • Mfr. Part No. 2CDS212001R0164 SH202-C 16
Subtotal (1 box of 1 unit)
TWD1,473.00(exc. GST)
In Stock
Siemens Copper SENTRON 5ST 2 Phase Busbar, 400 V ac, 18 mm Pitch
  • RS Stock No. 124-3140
  • Mfr. Part No. 5ST3704
Subtotal (1 unit)
TWD916.00(exc. GST)
In Stock
Siemens SENTRON 5SY Miniature Circuit Breaker, 1-Pole, 2 A, Type A, 400 V ac AC, 10 kA Breaking Capacity
  • RS Stock No. 232-2282
  • Mfr. Part No. 5SY4102-5
Subtotal (1 unit)
TWD2,145.00(exc. GST)
Limited stock
Siemens SENTRON 5SY4 Miniature Circuit Breaker, 1-Pole, 6 A, Type C, 400 V ac AC, 60 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 383-2018
  • Mfr. Part No. 5SY4106-7
Subtotal (1 unit)
TWD951.00(exc. GST)
Temporarily out of stock
HENSEL KV Distribution Board 48 Way
  • RS Stock No. 183-2862
  • Mfr. Part No. KV9448M
Subtotal (1 unit)
TWD11,055.00(exc. GST)
In Stock
ABB, SACE Tmax XT, XT1B Molded Case Circuit Breaker 3-Pole 100 A, Breaking Capacity 3 kA, Fixed
  • RS Stock No. 232-0216
  • Mfr. Part No. 1SDA066807R1 XT1B 160 TMD 100A FF
Subtotal (1 unit)
TWD9,618.00(exc. GST)
In Stock
Eaton xEffect FAZ Miniature Circuit Breaker, 4-Pole, 16 A, Type C, 415 V ac AC, 96 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 922-7144
  • Mfr. Part No. 279061 FAZ-C16/4
Subtotal (1 unit)
TWD6,296.00(exc. GST)
In Stock
Schneider Electric Acti9 Acti9 Miniature Circuit Breaker, 3-Pole, 32 A, Type C, 400 V ac AC, 4.5 kA Breaking Capacity
  • RS Stock No. 191-6099
  • Mfr. Part No. A9P22732
Subtotal (1 unit)
TWD6,226.00(exc. GST)
In Stock
Schneider Electric 110V ac/dc Remote Tripping Device Circuit Trip for use with LRD Series, LR3D Series
  • RS Stock No. 744-6973
  • Mfr. Part No. LAD703F
Subtotal (1 unit)
TWD2,210.00(exc. GST)
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