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

259 of 999+
Temporarily out of stock
Better World
Schneider Electric iID RCCB, 100A, 4 Pole, 30mA, Type AC, 415V ac
  • RS Stock No. 248-3694
  • Mfr. Part No. A9R11491
Each
TWD27,008.00(exc. GST)
Temporarily out of stock
Contactum 14 Way Steel Consumer Unit, 100A Defender
  • RS Stock No. 184-9129
  • Mfr. Part No. DDS14188MS-P01
Each
TWD8,093.00(exc. GST)
In Stock
Better World
Schneider Electric RCBO, 10A Current Rating, 1P+N Poles, Type AB, Easy9 Range
  • RS Stock No. 850-8644
  • Mfr. Part No. EZ9D16810
Each
TWD1,562.00(exc. GST)
Temporarily out of stock
Eaton xEnergy Light Distribution Board
  • RS Stock No. 230-555
  • Mfr. Part No. 114737 XLSPP203
Each
TWD2,100.00(exc. GST)
In Stock
Phoenix Contact CAPAROC Electronic Circuit Breaker 10A, 1 channels
  • RS Stock No. 265-8986
  • Mfr. Part No. 1157284
Each
TWD1,806.00(exc. GST)
Temporarily out of stock
ABB System Pro M Compact S200M MCB, 1P, 32A Curve K, 230/400V AC, 72V DC, 15 kA Breaking Capacity
  • RS Stock No. 200-016
  • Mfr. Part No. 2CDS271001R0537
Each
TWD4,324.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 50A, Fixed Mount
  • RS Stock No. 260-9480
  • Mfr. Part No. C10H4TM050
Each
TWD35,442.00(exc. GST)
Temporarily out of stock
Sensata Airpax Airpax Thermal Circuit Breaker - PR11 Single Pole Panel Mount, 5A Current Rating
  • RS Stock No. 275-0437
  • Mfr. Part No. PR11-62-5.00A-XX-V
Each
TWD643.00(exc. GST)
In Stock
Eaton Electronic Circuit breaker 4A
  • RS Stock No. 774-0174
  • Mfr. Part No. 121724 PKE-XTU-4
Each
TWD4,450.00(exc. GST)
Temporarily out of stock
Better World
Siemens RCBO, 10A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type C, Sentron Range
  • RS Stock No. 243-6173
  • Mfr. Part No. 5SU1324-7FR10
Each
TWD13,948.00(exc. GST)
In Stock
Better World
Siemens 5SV4444 RCCB, 40A, 4 Pole, 100mA, Type AC, 400V ac
  • RS Stock No. 231-8396
  • Mfr. Part No. 5SV4444-0
Each
TWD9,643.00(exc. GST)
Temporarily out of stock
Hager NFN MCB, 4P, 25A Curve C, 240 → 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 144-4724
  • Mfr. Part No. NFN425
Each
TWD8,598.00(exc. GST)
Temporarily out of stock
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 4P 40A, Breaking Capacity 2.5 kA
  • RS Stock No. 245-527
  • Mfr. Part No. 3VA6140-8HL41-0AA0
Each
TWD56,322.00(exc. GST)
In Stock
ABB Busbar Cover
  • RS Stock No. 711-6562
  • Mfr. Part No. 1SAM201907R1102 S1-M2-25
Each
TWD552.00(exc. GST)
In Stock
ABB Tmax XT Rotary Handle for use with Circuit Breaker
  • RS Stock No. 236-6853
  • Mfr. Part No. 1SDA069053R1 RHD XT2-XT4 F/P STAND
Each
TWD3,578.00(exc. GST)
In Stock
Eaton RCCB, 40A, 4 Pole, 300mA, Type B
  • RS Stock No. 183-3551
  • Mfr. Part No. 167901 FRCDM-40/4/03-S/B
Each
TWD42,175.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric RCBO, 32A Current Rating, 1P+N Poles, 300mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 238-3345
  • Mfr. Part No. A9DV6632
Each
TWD14,269.00(exc. GST)
Temporarily out of stock
Eaton Eaton Moeller NZM Undervoltage Release for use with N(S)2(-4), N(S)3(-4), NZM2(-4), NZM3(-4)
  • RS Stock No. 255-726
  • Mfr. Part No. 259587 NZM2/3-XUHIV60AC
Each
TWD7,778.00(exc. GST)
In Stock
Phoenix Contact Electronic Device Circuit Breaker Electronic Circuit breaker 2A 24V CB, 1 channels
  • RS Stock No. 212-8806
  • Mfr. Part No. 2800923
Each
TWD1,642.00(exc. GST)
In Stock
ETA Thermal Circuit Breaker - 3120-N 5 Pole 50 V DC, 240 V AC Voltage Rating, 3A Current Rating
  • RS Stock No. 210-2090
  • Mfr. Part No. 3120-N551-H7T1-W02D-3A
Each
TWD957.00(exc. GST)
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