Application

Rotary Auxiliary Wiping contact switches are modular in design and are very versatile for switching a.c. as well as d.c. resistive & inductive loads. They are used as auxiliary contacts in equipments such as HV - Gas Circuit Breakers and various equipments where in 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.

Features & Specification

• Wiping type of contacting making it suitable for switching d.c. loads.
• Self cleaning of contacts is done during the operation.
• Capable of carrying heavy currents.
•  Modular design to achieve any number of poles with minimum components.
• Superior insulating material ensures electrical & mechanical stability.

Specification

• Coventional free Air Thermal Current Rating (Ith): 20 Amp.
• Operational Voltage: 264 volts d.c
•  Operational Current: 7.5 Amp.
•  Utilisation Category: DC13
•  Switching capability: Inductive loads with L/R ratio (time constant) of 20 mSec
•  Dielectric Strength: 2.0 kv for 1 minute
• Insulation Resistance: ≥500 Mohm
• Mechanical Durability: ≥ 1,00,000 operations
• Electrical Durability: ≥ 1,00,000 operations