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

265 of 999+
Temporarily out of stock
ABB, SACE Tmax T MCCB Molded Case Circuit Breaker 3P 1.25kA, Fixed Mount
  • RS Stock No. 232-0157
  • Mfr. Part No. 1SDA062866R1 T7S 1250A PR231-LS/I FF
Each
TWD129,832.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 160A, Breaking Capacity 55 kA, DIN Rail Mount
  • RS Stock No. 271-9786
  • Mfr. Part No. 3VA1116-5FD46-0AA0
Each
TWD45,245.00(exc. GST)
Temporarily out of stock
Schneider Electric, PowerPact MCCB 3P 50A, Breaking Capacity 18 kA, DIN Rail Mount
  • RS Stock No. 345-084
  • Mfr. Part No. NHGL36050
Each
TWD52,787.00(exc. GST)
Temporarily out of stock
Eaton Eaton Metering Board ZSD Meter Cabinet for use with Metering Board
  • RS Stock No. 246-832
  • Mfr. Part No. 191007 ZSD-ZV-1100/APZ
Each
TWD56,744.00(exc. GST)
In Stock
Better World
Schneider Electric NSX Spreader for use with Compact Nsx100/160/250, Easypact Cvs 100/160/250
  • RS Stock No. 221-1223
  • Mfr. Part No. LV431563
Each
TWD1,776.00(exc. GST)
Temporarily out of stock
Siemens ALPHA Assembly Kit for use with 3VA1 Molded Case Circuit Breakers
  • RS Stock No. 629-394
  • Mfr. Part No. 8GK4734-2KK12
Each
TWD4,722.00(exc. GST)
Temporarily out of stock
ABB Emax 2, Tmax XT Power Supply Module for use with Circuit Breaker
  • RS Stock No. 231-9323
  • Mfr. Part No. 1SDA074173R1
Each
TWD9,940.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric, Masterpact MCCB 3P 4kA, Fixed Mount
  • RS Stock No. 248-3816
  • Mfr. Part No. LV848323
Each
TWD1,795,299.00(exc. GST)
Temporarily out of stock
ABB 24V ac/dc Shunt Operation Release Shunt trip for use with S800PV, S800S, S800N, S800C, S800B, S800HV, S800U Series
  • RS Stock No. 435-532
  • Mfr. Part No. 2CCS800900R0191 S800-SOR24
Each
TWD3,040.00(exc. GST)
Temporarily out of stock
Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 350A, Breaking Capacity 5 kA, Plug In
  • RS Stock No. 247-359
  • Mfr. Part No. 168484 NZMN3-ME350-SVE
Each
TWD97,434.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 30A, Breaking Capacity 10 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-342
  • Mfr. Part No. 3VA5130-6ED31-0AA0
Each
TWD15,756.00(exc. GST)
In Stock
Siemens SIRIUS 3 Phase Busbar Protector, 690V
  • RS Stock No. 755-2971
  • Mfr. Part No. 3RV2925-5EB
Each
TWD1,648.00(exc. GST)
Temporarily out of stock
Siemens, Sentron MCCB Molded Case Circuit Breaker 3P 1kA, Breaking Capacity 25 kA, Cable Mount
  • RS Stock No. 249-221
  • Mfr. Part No. 3VA6610-5HL36-0AA0
Each
TWD252,109.00(exc. GST)
Temporarily out of stock
Siemens SENTRON Signaling Switch for use with Circuit Breaker 3WL10 / 3VA27
  • RS Stock No. 265-663
  • Mfr. Part No. 3VW9011-0AH01
Each
TWD2,843.00(exc. GST)
Temporarily out of stock
Siemens SENTRON Connection Kit
  • RS Stock No. 277-0778
  • Mfr. Part No. 3WA9111-0AM21
Each
TWD1,740.00(exc. GST)
In Stock
Siemens SENTRON 5SL66 MCB, 3P+N, 6A Curve B, 440V AC, 62.5V DC, 6 kA Breaking Capacity
  • RS Stock No. 328-356
  • Mfr. Part No. 5SL6606-6
Each
TWD4,138.00(exc. GST)
Temporarily out of stock
Schneider Electric MasterPact Connection Unit for use with MTZ1 06-16
  • RS Stock No. 212-185
  • Mfr. Part No. LV833734
Each
TWD16,331.00(exc. GST)
Temporarily out of stock
Better World
ABB System Pro M Compact S200 MCB, 2P, 500mA Curve C, 440V AC, 125V DC, 20 kA Breaking Capacity
  • RS Stock No. 231-9679
  • Mfr. Part No. 2CDS252001R0984 S202 C 0.5A - 10 KA
1 Box of 1
TWD2,189.00(exc. GST)
Temporarily out of stock
Siemens SENTRON Option Plug
  • RS Stock No. 277-0903
  • Mfr. Part No. 3WA9111-0EB08
Each
TWD6,876.00(exc. GST)
Temporarily out of stock
ABB F200 RCCB, 100A, 2 Pole, Type A, 277V ac
  • RS Stock No. 177-5086
  • Mfr. Part No. 2CSF202201R5900
Each
TWD11,167.00(exc. GST)
1
265
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