Security Door Controls EP493 Explosion Proof Emergency Pull Station

The SDC EP493 is an explosion-proof emergency release station designed for secure access control systems operating in hazardous environments where flammable gases, vapors, or combustible materials may be present. It provides a reliable manual emergency door release solution for facilities such as chemical plants, refineries, clean rooms, laboratories, and industrial processing areas.

Built with a rugged weather-resistant housing, the EP493 helps prevent sparks or electrical arcing that could create hazards in classified environments. The unit is UL classified for hazardous locations, including Class I, Division 1, Groups B, C, D; Class II, Division 1, Groups E, F, G; and Class III, with a NEMA Type 4X outdoor rating for enhanced durability in demanding installations.

The pull station features a momentary activation design with a latching mechanism to provide immediate emergency door release control. It includes DPDT contacts, a durable die-cast housing, terminal block connections, and supports integration with compatible access control systems and SDC explosion-proof locking devices.

Features:

• Hazardous location design
• High strength metal die-cast alloy
• Terminal block connection
• Blue housing eliminates confusion with red
  fire alarm stations
• Easy to read activation instruction
• Initiates release of individual door or all doors
  on same circuit
• Main contact for lock release
• Auxiliary contact for remote monitoring,
  CCTV or alarm activation
• Explosion protected contact blocks
• Clearance for 3/4” top/bottom feed NPT fitting
• Two replacement glass pieces included