Profile

• At 4 corner holes with 4 Screws of size M4.5 at 49.5 CRS (70mm PCD) for Breaker application for 25, 32, 40 and 50A Switches.
• At 4 corner holes with 4 Screws of size M5 at 60CRS for other applications for 25, 32, 40 and 50A Switches.
• At 4 corner holes with M3.5 screws at 36PCD for 16 and 20A switches.

Dust Protection :
Control Switches are ideally recommended for use in power station locations/industrial applications for dust protection because of contact/housing design.

Component Specifications :
Control switch is an assembly of component parts viz.

• Packets - Moulded from Glass Filled Nylon wich is an engineerning thermoplastic material having excellent properties like - high insulation, anti-tracking, self extinguishing, fire retardant and impact/fracture proof.
• Mechanism Housing - The mechanism houding is also moulded from same material as switching packets and contain other parts which provide indexing positions.
• Contact/Terminals - Fixed and moving contacts parts are of brass (electrical grade) suitably electroplated on which Bimetal Button contacts Silver-Alloy (Silver Cadmium Oxide-Ag Cd O) are rivetted for make break operations. Each packet contains two electrically independent contacts. The outside ends of the fixed contacts are recessed type designed for connections by means of M3.5 or M4 size panhead screw and clamped tight by arched spring washers. Terminals are suitable to carry wires upto 4mm sw. or 4mm crimped terminals.
• Cams - These are moulded from engineering plastic and variety of standard Cam profiles are available to satisfy standard as well as any odd switching combination.
• Contact Springs - Each moving contact is assisted by a part of springs of stainless steel to provide uniform contact pressure ensuring higher contact life.
• Other Parts - Above components are assembled by means of suitable hardware and fitted with mounting plate. The indexing mechanism and Cams in the contact assembly are operated by a steel shaft with a suitable handle.