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

1692 of 999+
Better World
Siemens SENTRON 5SY5 MCB, 1P, 10A Curve C, 10 kA Breaking Capacity
  • RS Stock No. 203-2179
  • Mfr. Part No. 5SY5110-7
Each
TWD2,860.00(exc. GST)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 40A, Breaking Capacity 5 kA, Fixed Mount
  • RS Stock No. 258-298
  • Mfr. Part No. 281302 NZMH2-M40
Each
TWD19,770.00(exc. GST)
Better World
Schneider Electric, ComPacT NSX MCCB 3P 16A, Fixed Mount
  • RS Stock No. 254-6293
  • Mfr. Part No. C10H3TM016
Each
TWD29,562.00(exc. GST)
Siemens SENTRON Locking Kit
  • RS Stock No. 277-0851
  • Mfr. Part No. 3WA9111-0BA34
Each
TWD11,815.00(exc. GST)
Eaton xEffect MCB, 1P, 1.5A Curve D, 240V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 847-3453
  • Mfr. Part No. 102099 FAZ-D1,5/1-NA
Each
TWD1,695.00(exc. GST)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 200A, Breaking Capacity 5 kA, Plug In
  • RS Stock No. 231-390
  • Mfr. Part No. 113383 NZMH2-4-A200/125-SVE
Each
TWD77,127.00(exc. GST)
Lovato ModuLo P1MB MCB, 1P, 32A Curve C, 230V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 825-5609
  • Mfr. Part No. P1MB1PC32
Each
TWD658.00(exc. GST)
Better World
Siemens 5sV3 RCCB, 63A, 2 Pole, 100mA, Type A, 230V ac
  • RS Stock No. 211-9664
  • Mfr. Part No. 5SV3416-8
Each
TWD12,819.00(exc. GST)
Schneider Electric EasyPact Electronic Circuit Breaker 20A, Fixed
  • RS Stock No. 122-412
  • Mfr. Part No. LV510852
Each
TWD3,016.00(exc. GST)
Better World
ABB, Tmax XT MCCB 4P 160A, Fixed Mount
  • RS Stock No. 236-7523
  • Mfr. Part No. 1SDA067844R1 XT2S 160 Ekip I 160A FF
Each
TWD35,921.00(exc. GST)
Siemens SENTRON 3 Phase Busbar, 690V
  • RS Stock No. 265-640
  • Mfr. Part No. 8US1923-3UA01
1 Pack of 10
TWD13,211.00(exc. GST)
Siemens SIVACON S4 Connecting Terminals for use with SIVACON S4
  • RS Stock No. 626-456
  • Mfr. Part No. 8PQ5000-0BA72
Each
TWD2,207.00(exc. GST)
Eaton xComfort Distribution Board Enclosure, 13 Way
  • RS Stock No. 229-648
  • Mfr. Part No. 110157 BC-A-1/13-TW-G
Each
TWD3,100.00(exc. GST)
Eaton IZMX/INX Terminal Kit for use with INX40…4…20F, INX40…4…25F, IZMX40…4…20F, IZMX40…4…25F
  • RS Stock No. 132-376
  • Mfr. Part No. 184181 IZMX-TF404-2500F-1
Each
TWD51,422.00(exc. GST)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 225A, Breaking Capacity 5 kA, Fixed Mount
  • RS Stock No. 232-001
  • Mfr. Part No. 107827 NZMH2-AF225-BT-NA
Each
TWD82,644.00(exc. GST)
Schneider Electric EasyPact Electronic Circuit Breaker 40A, Fixed
  • RS Stock No. 122-415
  • Mfr. Part No. LV510856
Each
TWD3,016.00(exc. GST)
Better World
Siemens SENTRON 5SL4 MCB, 1P, 32A Curve C, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 209-6619
  • Mfr. Part No. 5SL4132-7
Each
TWD1,059.00(exc. GST)
Siemens SENTRON 5SY5 MCB, 2P, 4A Curve B, 400V AC, 440V DC, 15 kA Breaking Capacity
  • RS Stock No. 610-630
  • Mfr. Part No. 5SY5204-6
Each
TWD5,967.00(exc. GST)
Better World
Siemens, SENTRON MCCB 3P 63A, Breaking Capacity 85 kA
  • RS Stock No. 209-6903
  • Mfr. Part No. 3VA2063-6HN32-0AA0
Each
TWD31,975.00(exc. GST)
ABB RCBO, 16A Current Rating, 2P Poles, 30mA Trip Sensitivity, System Pro M Compact Range
  • RS Stock No. 201-6949
  • Mfr. Part No. 2CSR275080R1164 DS201 M C16 AC30
Each
TWD6,210.00(exc. GST)
Results per page
1
1692
1794