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

1741 of 999+
Temporarily out of stock
Better World
ABB, Tmax XT MCCB 3P 100A, Fixed Mount
  • RS Stock No. 236-7566
  • Mfr. Part No. 1SDA067922R1 XT2L 160 Ekip I 100A FF
Each
TWD24,429.00(exc. GST)
In Stock
Better World
Schneider Electric Acti9 iTG40 RCCB, 40A, 3+N Pole, 300mA, Type AC, 400V ac
  • RS Stock No. 238-3493
  • Mfr. Part No. A9Y13740
Each
TWD11,797.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 1kA, Breaking Capacity 31 kA, Fixed Mount
  • RS Stock No. 428-722
  • Mfr. Part No. C100H360FM
Each
TWD531,969.00(exc. GST)
Temporarily out of stock
Hager CGC RCD Switch, 40A, 4 Pole, 500mA, Type AC, 230 → 400V
  • RS Stock No. 599-855
  • Mfr. Part No. CGC840F
Each
TWD11,664.00(exc. GST)
Temporarily out of stock
Siemens SENTRON 5SP37 MCB, 1P, 50A, Type E, 230V AC, 25 kA Breaking Capacity
  • RS Stock No. 328-516
  • Mfr. Part No. 5SP3750-2
1 Set
TWD14,253.00(exc. GST)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 630A 1SDA07, 3 channels
  • RS Stock No. 259-9891
  • Mfr. Part No. 1SDA070724R1
Each
TWD192,011.00(exc. GST)
In Stock
Schneider Electric Acti 9 1 Phase Distribution Board, 250 A
  • RS Stock No. 247-2153
  • Mfr. Part No. NSNL250
Each
TWD2,505.00(exc. GST)
Temporarily out of stock
Eaton Eaton Moeller NZM Door Coupling Handle for use with N(S)1, NZM1
  • RS Stock No. 248-254
  • Mfr. Part No. 100667 NZM1-XTVDV-60-NA
Each
TWD4,100.00(exc. GST)
Temporarily out of stock
ABB System Pro M Compact S300P MCB, 2P, 1.6A Curve C, 415V AC, 125V DC, 100 kA Breaking Capacity
  • RS Stock No. 201-321
  • Mfr. Part No. 2CDS382001R0974
Each
TWD9,643.00(exc. GST)
Temporarily out of stock
Eaton BP-DS-600 Door for use with Service Distribution Board IVS
  • RS Stock No. 256-808
  • Mfr. Part No. 292442 BP-DS-600/10-W
Each
TWD2,123.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 350A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 257-383
  • Mfr. Part No. 3VA5335-6GC41-2AA0
Each
TWD129,389.00(exc. GST)
Temporarily out of stock
TE Connectivity Thermal Circuit Breaker - W69 3 Pole 277V ac Voltage Rating, 15A Current Rating
  • RS Stock No. 782-7868
  • Mfr. Part No. W69-X2Q12-15
Each
TWD2,926.00(exc. GST)
In Stock
Siemens SENTRON 2 Phase Busbar, 18mm Pitch
  • RS Stock No. 187-5176
  • Mfr. Part No. 5ST3638
Each
TWD807.00(exc. GST)
Temporarily out of stock
ABB DDA200 RCD, 25A, 4 Pole, 300mA, Type AC
  • RS Stock No. 183-3654
  • Mfr. Part No. 2CSB204001R3250
Each
TWD5,298.00(exc. GST)
In Stock
Better World
Schneider Electric Linergy Combination Block for use with TeSys GV2TeSys D
  • RS Stock No. 219-9082
  • Mfr. Part No. GV2AF5
Each (In a Pack of 10)
TWD291.50(exc. GST)
In Stock
ABB PS1 3 Phase Busbar, 690V
  • RS Stock No. 445-0566
  • Mfr. Part No. 1SAM201906R1112 PS1-2-1-65
Each
TWD441.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 63A, Breaking Capacity 2.5 kA, Fixed Mount
  • RS Stock No. 270-4770
  • Mfr. Part No. 3VA2163-7MS32-0AA0
Each
TWD27,120.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 2P 60A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 268-058
  • Mfr. Part No. 3VA5260-7ED61-0AA0
Each
TWD32,069.00(exc. GST)
Temporarily out of stock
Siemens SENTRON Motor Operator for use with 3VA51
  • RS Stock No. 152-450
  • Mfr. Part No. 3VA9137-0HA20
Each
TWD28,238.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 16A, Breaking Capacity 36 kA
  • RS Stock No. 209-6870
  • Mfr. Part No. 3VA1196-4EF42-0AA0
Each
TWD19,471.00(exc. GST)
1
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