Potter Electric MPEX Explosion Proof Manual Pull Station

Product Description

The POTTER ELECTRIC SIGNAL CO. US MPEX is an explosion proof manual pull station designed for use in fire alarm and life safety systems installed in hazardous locations. Manual pull stations in this class allow building occupants or personnel to manually initiate a fire alarm signal by pulling the actuating lever or handle. The MPEX is built to contain any internal spark or ignition within its enclosure, preventing ignition of surrounding flammable gases, vapors, or dust. Licensed fire alarm technicians and electricians install this device as part of a complete fire detection and notification system.

The MPEX is intended for hazardous environment applications where standard manual stations are not rated for use. Typical installation locations include petrochemical facilities, refineries, grain handling operations, paint spray areas, and other industrial sites classified under NEC Article 500 hazardous location standards. It fits into fire alarm control panel circuits requiring a manual initiating device that meets explosion proof enclosure requirements. This unit is sold individually.

Key Features

• Explosion proof enclosure suitable for hazardous location installation
• Manual pull station function for direct human-initiated fire alarm signaling
• Designed for integration into fire alarm initiating device circuits
• Sold as a single unit per package

Compatibility

Designed as an OEM-style replacement or new-installation manual initiating device for fire alarm systems requiring explosion proof manual pull stations in NEC-classified hazardous locations.

Installation Notes

Installation must be performed by a licensed electrician or certified fire alarm technician in accordance with NFPA 72, NEC Article 500, and all applicable local codes. De-energize the fire alarm control panel initiating device circuit before making any wiring connections. Verify the hazardous location classification of the installation area to confirm the MPEX enclosure rating is appropriate for the specific gas group and temperature class present. Do not modify the enclosure or internal components, as any alteration may void the explosion proof listing.