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

117 of 999+
Schneider Electric Multi9 M9F MCB Mini Circuit Breaker, 3P, 25A Curve B, 277V AC, 10 kA Breaking Capacity
  • RS Stock No. 654-532
  • Mfr. Part No. M9F21325
Each
TWD5,730.00(exc. GST)
Better World
Schneider Electric TeSys Thermal Circuit Breaker - TeSyS GV 3 Pole 690V ac Voltage Rating, 80A Current Rating
  • RS Stock No. 175-1449
  • Mfr. Part No. GV4L80S
Each
TWD34,602.00(exc. GST)
Schneider Electric Cross Elbow Busbar Trunking, 800mm, 630A, Canalis Series
  • RS Stock No. 340-965
  • Mfr. Part No. KSA630DZE43A
Each
TWD98,543.00(exc. GST)
Better World
Siemens SENTRON Terminal for use with 3VA2 250
  • RS Stock No. 210-9357
  • Mfr. Part No. 3VA9263-0JA12
Each
TWD1,595.00(exc. GST)
Eaton RCCB, 63A, 4 Pole, 100mA, Type S, 230 V ac, 400 V ac
  • RS Stock No. 227-0751
  • Mfr. Part No. 264310 PFGM-63/4/01-S
Each
TWD15,518.00(exc. GST)
ABB Electronic Time Delay for use with T1, T2, T3, T4, T5, T6, XT1, XT2, XT3, XT4
  • RS Stock No. 250-4525
  • Mfr. Part No. 1SDA051360R1
Each
TWD21,302.00(exc. GST)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 225A, Breaking Capacity 5 kA, Fixed Mount
  • RS Stock No. 259-045
  • Mfr. Part No. 271101 NZMN2-AF225-NA
Each
TWD67,434.00(exc. GST)
Better World
Schneider Electric Acti 9 iC60H MCB, 2P, 16A Curve B, 440V AC, 100 → 133V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3192
  • Mfr. Part No. A9F53216
Each
TWD4,015.00(exc. GST)
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 211-3753
  • Mfr. Part No. 3VA2010-5KP32-0AA0
Each
TWD58,534.00(exc. GST)
Phoenix Contact EC-E Electronic Circuit Breaker 3A 24V EC-E4, 1 channels , DIN Rail
  • RS Stock No. 131-326
  • Mfr. Part No. 0903034
Each (In a Pack of 6)
TWD2,788.30(exc. GST)
ABB High Performance S800N MCB, 2P, 80A Curve B, 400V AC, 36 kA Breaking Capacity
  • RS Stock No. 435-526
  • Mfr. Part No. 2CCG001217R0001
Each
TWD7,524.00(exc. GST)
Siemens SENTRON 5SY8 MCB, 2P, 500mA Curve D, 400V AC, 70 kA Breaking Capacity
  • RS Stock No. 610-601
  • Mfr. Part No. 5SY8205-8
Each
TWD5,930.00(exc. GST)
Better World
Schneider Electric Acti9 1 Phase Busbar, 230V, 9mm Pitch
  • RS Stock No. 238-4094
  • Mfr. Part No. A9XPV748
Each (In a Pack of 5)
TWD8,576.40(exc. GST)
Contactum 16 Way Steel Consumer Unit, 100A Defender
  • RS Stock No. 184-9154
  • Mfr. Part No. DD161SPMS
Each
TWD7,123.00(exc. GST)
Schneider Electric A9W RCD, 25A, 4 Pole, 30mA, Type A, 400/415V ac
  • RS Stock No. 212-295
  • Mfr. Part No. A9W21425
Each
TWD6,326.00(exc. GST)
Schneider Electric Panelset Busbar
  • RS Stock No. 444-412
  • Mfr. Part No. NSYTBCN348
Each
TWD64,372.00(exc. GST)
Better World
Siemens, SENTRON MCCB 4P 63A, Breaking Capacity 70 kA, Fixed Mount
  • RS Stock No. 271-9406
  • Mfr. Part No. 3VA1163-6GF42-0AA0
Each
TWD21,503.00(exc. GST)
Eaton Eaton Moeller NZM Undervoltage Release for use with N(S)1(-4), NZM1(-4)
  • RS Stock No. 255-706
  • Mfr. Part No. 259438 NZM1-XU60AC
Each
TWD5,402.00(exc. GST)
ABB System Pro M Compact S300P MCB, 3+N, 10A Curve K, 415V AC, 25 kA Breaking Capacity
  • RS Stock No. 200-347
  • Mfr. Part No. 2CDS383103R0427
Each
TWD17,275.00(exc. GST)
Eaton xE?ect - FRCdM RCCB, 40A, 4 Pole, 30mA, 240/415V ac
  • RS Stock No. 120-916
  • Mfr. Part No. 167881 FRCDM-40/4/003-G/B+
Each
TWD36,232.00(exc. GST)
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