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

107 of 999+
Better World
Schneider Electric TeSys Thermal Circuit Breaker - TeSyS GV 3 Pole 690V ac Voltage Rating, 80A Current Rating
  • RS Stock No. 175-1550
  • Mfr. Part No. GV4PE80B
Each
TWD11,976.00(exc. GST)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 40A, Breaking Capacity 10 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-384
  • Mfr. Part No. 3VA5140-6EC31-0AA0
Each
TWD19,318.00(exc. GST)
Better World
Siemens, SENTRON MCCB 3P 160A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 270-4128
  • Mfr. Part No. 3VA2116-8HN36-0AA0
Each
TWD71,110.00(exc. GST)
Altech Thermal Circuit Breaker - V-EA 2 Pole 277V Voltage Rating DIN Rail Mount, 3.5A Current Rating
  • RS Stock No. 899-1897
  • Mfr. Part No. 2G3.5UM
Each
TWD1,059.00(exc. GST)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 450A, Breaking Capacity 9 kA, Withdrawable
  • RS Stock No. 246-909
  • Mfr. Part No. 192339 NZMH3-PMX450-AVE
Each
TWD157,211.00(exc. GST)
Better World
Siemens, SENTRON MCCB 4P 25A, Breaking Capacity 110 kA, Fixed Mount
  • RS Stock No. 270-4562
  • Mfr. Part No. 3VA2125-7HN42-0AA0
Each
TWD45,982.00(exc. GST)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 80A, Breaking Capacity 36 kA, DIN Rail Mount
  • RS Stock No. 271-9423
  • Mfr. Part No. 3VA1180-4GE46-0AA0
Each
TWD22,180.00(exc. GST)
ETA Thermal Circuit Breaker - 8340 Single Pole 80V dc Voltage Rating Flange Mount, 10A Current Rating
  • RS Stock No. 273-4632
  • Mfr. Part No. 8340-F410-P1M1-A3H0-10A
Each
TWD2,807.00(exc. GST)
Schneider Electric Acti9 A9F04 Circuit Breaker, 3P, 6A Curve C, 500V AC, 6000 A Breaking Capacity
  • RS Stock No. 655-490
  • Mfr. Part No. A9F04306
Each
TWD5,058.00(exc. GST)
Better World
Schneider Electric TeSys Thermal Circuit Breaker - TeSyS GV 3 Pole 690V ac Voltage Rating, 7A Current Rating
  • RS Stock No. 175-1458
  • Mfr. Part No. GV4LE07N
Each
TWD19,281.00(exc. GST)
Better World
ABB, XT2L MCCB 4P 125A, Fixed Mount
  • RS Stock No. 236-7418
  • Mfr. Part No. 1SDA067668R1 XT2L 160 TMA 125A 3P+N FF
Each
TWD31,496.00(exc. GST)
Better World
Siemens, SENTRON MCCB 4P 40A, Breaking Capacity 110 kA, Fixed Mount
  • RS Stock No. 270-4667
  • Mfr. Part No. 3VA2140-7JQ46-0AA0
Each
TWD86,575.00(exc. GST)
ETA Thermal Circuit Breaker - 1616 Single Pole 32V Voltage Rating, 30A Current Rating
  • RS Stock No. 729-2748
  • Mfr. Part No. 1616-21-30A
Each
TWD478.00(exc. GST)
Better World
Schneider Electric Multi 9 C60SP MCB, 3P, 6A Curve B, 440V AC, 15 kA Breaking Capacity
  • RS Stock No. 211-2343
  • Mfr. Part No. M9F21306
Each
TWD5,353.00(exc. GST)
Schneider Electric, ComPacT NSX MCCB 3P 160A, Fixed Mount
  • RS Stock No. 254-6342
  • Mfr. Part No. C16F3
Each
TWD17,165.00(exc. GST)
Better World
Schneider Electric
  • RS Stock No. 219-9031
  • Mfr. Part No. AK5PC13
Each (In a Pack of 6)
TWD656.80(exc. GST)
Hager BDH Series RCCB, 25A, 1P+N Pole, 30mA, Type A-HI
  • RS Stock No. 597-971
  • Mfr. Part No. BDH225F
Each
TWD9,655.00(exc. GST)
Siemens Labelling Plate for use with PT Relais
  • RS Stock No. 266-9622
  • Mfr. Part No. LZS:PT17040
Each (In a Pack of 10)
TWD18.60(exc. GST)
Phoenix Contact 3 Phase Surge Protector, ≤2.5kV, DIN Rail Mount
  • RS Stock No. 890-3718
  • Mfr. Part No. 2905988
Each
TWD31,423.00(exc. GST)
Better World
Schneider Electric Acti 9 iC60H MCB, 1P, 40A Curve D, 100 → 133V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3483
  • Mfr. Part No. A9F55140
Each
TWD1,196.00(exc. GST)
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