Reserve Forward Switches -[SURDHI]

The 

 is a specialized motor control device manufacture designed for reversing the rotational direction of single-phase or three-phase motors. These are typically cam-operated rotary switches used in industrial machinery like milling machines or heavy-duty electrical setups. These are robust electrical switches designed for controlling motor direction—forward or reverse—and are mounted in durable sheet steel enclosures. Key features include:

• Ratings: Commonly 16 A, 25 A, 32 A, sometimes up to 40–63 A in heavier-duty models .

• Voltage: Typically 415 V AC, 50 Hz for three-phase applications.

• Construction:

  • Enclosure: Made of CRCA (Cold Rolled Close Annealed) steel sheet with phosphating and powder coating for corrosion resistance.

  • Internal contacts: Often made of electrolytic corrosion-resistant copper, electroplated for overload endurance.

  • Handles: Metal or Bakelite, with quick make/break mechanism to reduce arcing.

  • Safety features: Embossed earthing ID, cable knockouts for wiring.

    Applications :- 

    A reverse-forward switch in a sheet steel enclosure is necessary for any industrial setting where the direction of a three-phase motor must be manually controlled. Common applications include:

    • Machine tools (e.g., lathes and drilling machines)
    • Conveyor belt systems
    • Winches and hoists
    • Textile machines