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

38813 Produits présentés pour Circuit Breakers

1890 sur 999+
Temporairement en rupture de stock
Schneider Electric, PowerPact MCCB 3P 60A, Breaking Capacity 18 kA, Clip-On
  • N° de stock RS 341-565
  • Référence fabricant BDF36060
la pièce
210,36 €(TVA exclue)
Temporairement en rupture de stock
Eaton xEnergy Basic Distribution Board Enclosure
  • N° de stock RS 230-231
  • Référence fabricant 116654 BPM-O-400/7-P
la pièce
718,11 €(TVA exclue)
Temporairement en rupture de stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 600A, Breaking Capacity 65 kA, Fixed Mount
  • N° de stock RS 249-967
  • Référence fabricant 3VA6560-6JT46-2AA0
la pièce
8 190,00 €(TVA exclue)
Temporairement en rupture de stock
Siemens, SENTRON MCCB 3P 200A, Breaking Capacity 10 kA, Fixed Mount
  • N° de stock RS 147-317
  • Référence fabricant 3VA5220-7EF31-2AA0
la pièce
1 800,00 €(TVA exclue)
Temporairement en rupture de stock
Better World
Siemens SENTRON Electronic Circuit Breaker 63A 3VA2, 3 channels
  • N° de stock RS 157-291
  • Référence fabricant 3VA2163-5KQ32-0AA0
la pièce
1 840,00 €(TVA exclue)
Temporairement en rupture de stock
Siemens SENTRON 5SJ4218 MCB, 2P, 15A Curve D, 400V AC, 60V DC, 10 kA Breaking Capacity
  • N° de stock RS 299-807
  • Référence fabricant 5SJ4218-8HG42
la pièce
137,85 €(TVA exclue)
Temporairement en rupture de stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 1P 40A, Breaking Capacity 18 kA, Cable Mount, Panel Mount
  • N° de stock RS 148-390
  • Référence fabricant 3VA5140-6ED11-1AA0
la pièce
218,00 €(TVA exclue)
Temporairement en rupture de stock
Better World
Siemens SENTRON Electronic Circuit Breaker 400A 3VA2, 3 channels
  • N° de stock RS 156-805
  • Référence fabricant 3VA2440-5HM32-0AA0
la pièce
2 880,00 €(TVA exclue)
Temporairement en rupture de stock
Siemens SENTRON Connection Unit for use with Circuit Breaker 3WL10 / 3VA27
  • N° de stock RS 265-523
  • Référence fabricant 3VW9011-0AN32
1 kit
187,00 €(TVA exclue)
En stock
ETA Thermal Circuit Breaker - 8340 Single Pole 80V dc Voltage Rating Flange Mount, 40A Current Rating
  • N° de stock RS 405-9270
  • Référence fabricant 8340-F410-P1M1-A3H0-40A
la pièce
70,36 €(TVA exclue)
Temporairement en rupture de stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 400A, Breaking Capacity 9 kA, Withdrawable
  • N° de stock RS 231-353
  • Référence fabricant 113568 NZMH3-S400-AVE
la pièce
3 036,06 €(TVA exclue)
Temporairement en rupture de stock
Better World
Schneider Electric, PowerPact MCCB 3P 250A, Breaking Capacity 100 kA, Fixed Mount
  • N° de stock RS 219-8426
  • Référence fabricant NLJF36250U31XTW
la pièce
3 378,40 €(TVA exclue)
Temporairement en rupture de stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 900A, Breaking Capacity 37 kA, Fixed Mount
  • N° de stock RS 256-986
  • Référence fabricant 271145 NZMH4-VEF900-NA
la pièce
7 523,49 €(TVA exclue)
Temporairement en rupture de stock
ABB S804S MCB, 4P, 80A, UC-B, 750V DC, 50 kA Breaking Capacity
  • N° de stock RS 140-301
  • Référence fabricant 2CCS864001R1805
la pièce
1 304,66 €(TVA exclue)
Temporairement en rupture de stock
Better World
Siemens Sentron 5SV6 MCB, 2P, 13A, 230V AC, 6 kA Breaking Capacity
  • N° de stock RS 209-7510
  • Référence fabricant 5SV6016-6GV13
L'unité (en paquet de 12)
148,80 €(TVA exclue)
Temporairement en rupture de stock
Siemens SENTRON Undervoltage Release for use with 3VA1 and 3VA20-26
  • N° de stock RS 157-832
  • Référence fabricant 3VA9908-0BB16
la pièce
146,00 €(TVA exclue)
Temporairement en rupture de stock
Better World
Siemens, SENTRON MCCB 4P 40A, Breaking Capacity 55 kA
  • N° de stock RS 209-6923
  • Référence fabricant 3VA2140-5HL46-0AA0
la pièce
911,02 €(TVA exclue)
Temporairement en rupture de stock
Eaton xComfort KLV Distribution Board Enclosure
  • N° de stock RS 124-792
  • Référence fabricant 178818 KLV-36UPS-F
la pièce
154,53 €(TVA exclue)
Temporairement en rupture de stock
Phoenix Contact Thermal Circuit Breaker - CB TM2 2 Pole 80V dc Voltage Rating, 1A Current Rating
  • N° de stock RS 217-6378
  • Référence fabricant 2800891
la pièce
74,29 €(TVA exclue)
Temporairement en rupture de stock
Better World
Siemens, SENTRON MCCB 3P 600A, Breaking Capacity 35 kA, Fixed Mount
  • N° de stock RS 249-686
  • Référence fabricant 3VA6460-5KL31-0AA0
la pièce
4 190,00 €(TVA exclue)
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