Rotary Auxiliary Knife Switch

Listing ID #4518496

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Insulation Resistance≥500 Mohm
Conventional free AIr Thermal Current Rating (lth)10Amp.
Operational Voltage220 volts d.c.
Operational Current2.0 Amp.
Supply Type Manufacturer, Exporter, Supplier
Preferred Buyer Location All over the world

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Product Details

Electrical Durability ≥50,000 operations.
Utilisation Category DC113
Operational Current 2.0 Amp.
Conventional free AIr Thermal Current Rating (lth) 10Amp.
Dielectric Strength 2.0 kv for 1 minute.
Mechanical Durability ≥1,00,000 operations.
Tested as per IEC 62271
Insulation Resistance ≥500 Mohm
Switching capability Inductive loads with L/R ratio (time constant) of 20mS.
Operational Voltage 220 volts d.c.

Application : Rotary auxiliary knife switches popularly known as wafer switches due to their modular & companct design are very versatile for switching a.s. as well as d.c. resistive & iductive loads. They are used as auxiliary contacts in equipments such as MV & HV - Vacuum Circuit Breakers, Gas Circuit Breakers, Isolators & Various equipments, where it is linked mechanically to the equipment and follows the position as per the linkage. In most cases a straight motion of main contacts is converted into rotational through links & levers to operate the switches.

Features :

Knife type of contacting making it suitable for switching d.c. loads.
Self cleaning of contacts is done during the operation.
Modular design to achieve any number of poles with minimum components.
Brass inserts used in threads to endure more than required torque while mounting.
Superior insulating material ensures electrical & mechanical stability.

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Company Details

SHIRKE ELECTRO PVT. LTD. was established in 1990 with its vision to bring world class technology in electrical rotary cam & knife switches for Indian and overseas market in LV. MV, HV, EHV Switch Gears, Isolators, Machine Tools, Renewable Energy, Power Equipment & Transformer Industries.
We believe in change and have molded us to be adaptable in challenging situations. We believe in Purpose of our organization - “To act as a catalyst in Customer’s success”.