Residual Current Circuit Breaker

Listing ID #4374609

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Supply Type Manufacturer, Exporter, Supplier
Preferred Buyer Location All over the world

Introduction RCCB works on balance current principle. The supply side of the current carrying conductors is passed through a torroid and act as the primary winding of Core Balanced Current....

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Product Details

Introduction

RCCB works on balance current principle. The supply side of the current carrying conductors is passed through a torroid and act as the primary winding of Core Balanced Current Transformer. The secondary winding of this transformer is connected to an extremely sensitive electromagnetic trip relay which operates the tripping mechanism. In normal healthy circuit the vector sum of currents in all phases and neutral is equal to zero, if there is leakage in any of the phases flowing to earth the vector sum becomes not equal to zero. This residual current is enough to develop a resultant current flow in the secondary of Core Balanced Current Transformer which is applied to the sensitive relay resulting in actuating the tripping mechanism thereby tripping the supply.
Thus RCCB provides earth leakage protection in electrical circuits and even provides protection due to electric shocks against accidental coming in contact with live parts / leaky equipments in an electrical circuit.

Salient Features of Shield RCCBs

Shield RCCBs are highly reliable, hi-tech state of the art product. These are composite unit RCCBs for single phase and three phase applications with current ensitivity of 30,100 & 300mA against all kind of faults due to earth leakage.
Shield RCCBs ensure safely to human life and installations against fire and electric shocks. In short human life is extremely precious and Lawson RCCBs are the answer to safeguard the same.

Some Major Salient Features

• Provides protection against earth fault/ leakage and also fulfill the function of isolation.
• Automatically measures and disconnect the circuit when earth fault/ leakage current occurs and exceeds the rated sensitivity.
• High short-circuit current withstand capacity.
• Dual termination possible for cable and comb type bus bar connection.
• Having finger-touch safe connection terminals (IP 20 Protection).
• Fire resistant plastic parts to withstand abnormal heating and strong impact.
• Independent of power supply and line voltage. Also free from external voltage fluctuation.
• Incorporates a filtering device for prevention of nuisance tripping due to transient voltage.
• High current ratings upto 100A.

Sensitivity	Application
• 30mA	Designed for additional protection against direct contact. The 30mA RCCBs protects against leakage currents and indirect contact with earth loop impedance lectric shock hazards.
• 100mA	&Suitable for protection against indirect contact and leakage currents for larger installation.
• 300mA	Suitable for large installation having high levels of leakage currents. 300mA RCCBs protect against leakage currents, indirect contact & fire hazards.

• 70-100mA	Results in irreversible cardiac fibrillation leading to non study beating of heart which may be non reversible at times.
• 20-30mA	May cause respiratory damage due to contraction of muscles.
• 10mA	May cause muscle contraction.
• 1-10mA	May cause needle like pricking sensation.

Company Details

In the year 1997 we, RAAJAS TECHNOLOGIES PRIVATE LIMITED, started to manufacture MCBs in STANDARD brand as dedicated vendors to a nationally known company namely M/S Standard Electricals Limited. During our association with M/S Standard Electricals Limited, we increased our production from 20,000 poles to more than 1,00,000 poles/per month (including about 15,000-20,000 poles of MCB Isolators). Needless to say that the production was carried out under the watchful eyes of not only our quality assurance department but also visiting quality assurance managers. And that has helped us to understand and manufacture high quality product consistently.
We are now manufacturing and marketing our own brand 'SHIELD' since the year 2000. We have been able to provide 'high quality at affordable prices' to the market. We already have a presence in all major geographical areas in India.
We are also utilizing our capacity to optimum level by branding the product, under our ISI licence, for some reputed customers.