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

39049 Products showing for Circuit Breakers

50 of 999+
Better World
Schneider Electric Insulation accessory for use with Compact NSX, Easy Pact CVS
  • RS stock no. 201-3601
  • Mfr. Part No. LV429517
Each
R 637.82(exc. VAT)
Better World
Siemens SENTRON for use with MCCB
  • RS stock no. 218-1881
  • Mfr. Part No. 3VA9988-0BL30
Each
R 1,508.65(exc. VAT)
Better World
Schneider Electric Circuit Trip
  • RS stock no. 219-9355
  • Mfr. Part No. LV429392
Each
R 2,853.04(exc. VAT)
Better World
Schneider Electric RCBO, 10A Current Rating, 1P+N Poles, 300mA Trip Sensitivity, Type C, Acti9 Range
  • RS stock no. 191-6075
  • Mfr. Part No. A9DA6610
Each
R 6,574.63(exc. VAT)
Phoenix Contact Thermomagnetic Device Circuit Breaker Thermal Circuit Breaker - CB Single Pole 50V dc Voltage Rating,
  • RS stock no. 212-8787
  • Mfr. Part No. 2800854
Each
R 975.25(exc. VAT)
Better World
Schneider Electric, Compact Nsx, 630A, POWERTAG, 500VA
  • RS stock no. 221-1276
  • Mfr. Part No. LV432652
Each
R 50,430.43(exc. VAT)
Schneider Electric, ComPacT NSX Circuit breaker 2P 100A, Breaking Capacity 18 KA, Fixed Mount
  • RS stock no. 119-650
  • Mfr. Part No. C10F2TM100
Each
R 10,546.42(exc. VAT)
Siemens SENTRON 3 Phase Busbar, 230V, 35.2mm Pitch
  • RS stock no. 187-5229
  • Mfr. Part No. 5ST3775-0
Each
R 2,915.22(exc. VAT)
Better World
Schneider Electric Spreader for use with Compact Nsx 400/630, Easypact Cvs 400/630
  • RS stock no. 221-1235
  • Mfr. Part No. LV432492
Each
R 3,174.58(exc. VAT)
Schneider Electric Tee Elbow Busbar Trunking, 290 → 800mm, 1000A, Canalis Series
  • RS stock no. 429-266
  • Mfr. Part No. KSA1000DLF4CFM
Each
R 76,102.30(exc. VAT)
Phoenix Contact TRABTECH Thermal Circuit Breaker - CB TM1 6A M1 P Single Pole, 6A Current Rating
  • RS stock no. 768-0906
  • Mfr. Part No. 2800852
Each
R 974.67(exc. VAT)
Phoenix Contact CLIPLINE Thermal Circuit Breaker - UT 6-TMC Single Pole 250V Voltage Rating DIN Rail Mount, 6A Current
  • RS stock no. 684-3601
  • Mfr. Part No. 0916608
Each
R 479.23(exc. VAT)
Schneider Electric Surge Arrester, 1.5kV, Clip-On Mount
  • RS stock no. 276-8728
  • Mfr. Part No. A9L16482
Each
R 31,539.14(exc. VAT)
Siemens SENTRON 3 Phase Busbar, 1.5mm Pitch
  • RS stock no. 226-0827
  • Mfr. Part No. 5ST3712-0HG
Each
R 3,950.72(exc. VAT)
Phoenix Contact Electronic Device Circuit Breaker Electronic Circuit breaker 10A 24V CBMC, 1 channels , DIN Rail Mount
  • RS stock no. 207-2719
  • Mfr. Part No. 2906032
Each
R 3,171.82(exc. VAT)
Siemens Sentron Handle Locking Device for use with 3VA2 100/160/250/400/630, 3VA2/3 100/160/250/400/630, 3VA5 400/600,
  • RS stock no. 874-4446
  • Mfr. Part No. 3VA9388-0LB10
Each
R 1,012.87(exc. VAT)
Phoenix Contact Surge Protector, 41A, 1000V dc
  • RS stock no. 517-625
  • Mfr. Part No. 1197141
Each
R 3,995.17(exc. VAT)
ABB PS1 1 Phase Busbar, 400V
  • RS stock no. 231-9634
  • Mfr. Part No. 2CDL210001R3060 PS1/60/30
1 Box of 1
R 1,507.21(exc. VAT)
Phoenix Contact Surge Protector, DIN Rail Mount
  • RS stock no. 201-5506
  • Mfr. Part No. 2906837
Each
R 521.01(exc. VAT)
ABB PS2 2 Phase Busbar, 400V
  • RS stock no. 231-9635
  • Mfr. Part No. 2CDL220001R1058 PS2/58
1 Box of 1
R 2,086.89(exc. VAT)
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