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

23594 Products showing for Circuit Breakers

1092 of 999+
Temporarily out of stock
Eaton xEnergy Main Distribution Board
  • RS Stock No. 230-339
  • Mfr. Part No. 112313 XPBMB0606-ROT
Each
$303.73(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 250A, Breaking Capacity 55 kA
  • RS Stock No. 209-7073
  • Mfr. Part No. 3VA2225-5HM32-0AA0
Each
$3,334.23(exc. GST)
Temporarily out of stock
Phoenix Contact Surge Protector, DIN Rail Mount
  • RS Stock No. 131-445
  • Mfr. Part No. 2801288
Each
$491.72(exc. GST)
Temporarily out of stock
Siemens SIVACON S4 Connecting Terminals for use with SIVACON S4
  • RS Stock No. 626-483
  • Mfr. Part No. 8PQ5000-0BA73
Each
$195.89(exc. GST)
Temporarily out of stock
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 4P 250A, Breaking Capacity 3 kA
  • RS Stock No. 245-375
  • Mfr. Part No. 3VA6225-0HL41-0AA0
Each
$7,736.42(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 50A, Breaking Capacity 36 kA
  • RS Stock No. 209-6997
  • Mfr. Part No. 3VA1150-4EE42-0AA0
Each
$1,066.54(exc. GST)
Temporarily out of stock
ABB Accessories MS/MO165 3 Phase Busbar, 690V ac
  • RS Stock No. 258-9395
  • Mfr. Part No. 1SAM401920R1022
Each
$71.93(exc. GST)
Temporarily out of stock
Eaton Circuit Trip Circuit Trip for use with IZMX…
  • RS Stock No. 132-433
  • Mfr. Part No. 183989 IZMX-PXRV-TAM-1
Each
$16,505.35(exc. GST)
Temporarily out of stock
Better World
Siemens SENTRON 3VA1 MCB, 2P, 100A
  • RS Stock No. 224-7786
  • Mfr. Part No. 3VA1110-3ED26-0AA0
Each
$867.96(exc. GST)
Temporarily out of stock
Siemens SENTRON 1 Phase Busbar
  • RS Stock No. 266-603
  • Mfr. Part No. 8US1620-5AK02
1 Pack of 6
$99.06(exc. GST)
Unavailable
Schneider Electric 690V ac Circuit Trip for use with Compact NSX 100/160/250 Circuit Breakers
  • RS Stock No. 219-9336
  • Mfr. Part No. LV429115
Each
$3,482.51(exc. GST)
Temporarily out of stock
Clipsal Electrical RCBO, 32A Current Rating, 1P Poles, 30mA Trip Sensitivity, Type A, MAX9 Range
  • RS Stock No. 282-2979
  • Mfr. Part No. MX9R3132F
Each
$70.26(exc. GST)
In Stock
Phoenix Contact Thermal Circuit Breaker - TCP 250V Voltage Rating DIN Rail Mount, 3A Current Rating
  • RS Stock No. 161-7244
  • Mfr. Part No. 0712233
Each (In a Box of 20)
$29.814(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 80A, Breaking Capacity 70 kA
  • RS Stock No. 209-7019
  • Mfr. Part No. 3VA1180-6EF36-0AA0
Each
$828.77(exc. GST)
Temporarily out of stock
Siemens SENTRON Kit for use with Manual Operators 3VA 3VA2 100/160/250/400/630
  • RS Stock No. 218-3322
  • Mfr. Part No. 8UD1900-0KA20
Each
$406.25(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 50A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 269-794
  • Mfr. Part No. 3VA5250-7ED31-1AA0
Each
$2,309.73(exc. GST)
In Stock
Siemens SENTRON Busbar Protector for use with 5ST Busbars for Modular Installation Devices
  • RS Stock No. 201-1761
  • Mfr. Part No. 5ST3655
Each (In a Pack of 10)
$4.155(exc. GST)
Temporarily out of stock
Better World
ABB System Pro M Compact S200 MCB, 4P, 50A Curve C, 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 746-7826
  • Mfr. Part No. 2CDS254001R0504 S204-C50
Each
$443.47(exc. GST)
Temporarily out of stock
Phoenix Contact Thermal Circuit Breaker - CB TM1 Single Pole 240V ac Voltage Rating, 12A Current Rating
  • RS Stock No. 217-6360
  • Mfr. Part No. 2800855
Each
$96.13(exc. GST)
Temporarily out of stock
Better World
Schneider Electric, Compact MCCB 4P 125A, Breaking Capacity 50 kA, DIN Rail Mount
  • RS Stock No. 178-8253
  • Mfr. Part No. LV426418
Each
$1,805.66(exc. GST)
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