Overview
Federal Signal MPEX explosion-proof fire alarm pull station provides reliable manual fire alarm activation in hazardous industrial environments. Designed for hazardous locations where flammable gases, vapors, combustible dusts or easily ignitable fibers are present, the MPEX meets strict safety standards for Class I, II, and III hazardous areas.
Key Features
- Unique swing-up front cover exposes a pull-down ring which activates the alarm; this two-step process prevents accidental activation
- Painted bright red for high visibility and has clearly marked operating instructions on the face plate
- Contacts on the unit are rated 120VAC, 60Hz at 6 amps continuous
- Enclosure is made of copper-free cast aluminum alloy
- Installation is made easy via the feed through 3/4 conduit openings found on either end of the MPEX
- MPEX fire pull station is reset by depressing the shaft and returning the plate to its original position
Technical Specifications
- Voltage: 120 VAC, 60 Hz
- Contact Rating: 6 amps continuous
- Operating Temperature: -13°F to 104°F (-25°C to 40°C)
- Enclosure Material: Copper-free cast aluminum alloy
- Color: Bright red
- Rated for Class I, Division 1, Groups C and D; Class II, Division 1, Groups E, F and G; and Class III
- Rated NEMA 7 for Groups C and D and NEMA 9 for Groups E, F and G
- Certifications: UL Listed, cUL Listed, CSA Certified, CSFM Approved
- Mounting Type: Wall mount
- Conduit Openings: 3/4 inch feed-through on each end
Typical Applications
- Oil and gas, chemical plants, and other high-risk areas
- Refineries and petrochemical facilities
- Mining operations and underground facilities
- Grain handling and storage facilities
- Manufacturing plants with explosive atmospheres
- Pharmaceutical processing facilities
Compatibility & Replacements
Compatible With
- Standard fire alarm control panels rated for 120 VAC, 60 Hz operation
- Manual pull station circuits in hazardous location fire systems
- Addressable and conventional fire alarm systems
- Facility fire protection and emergency response systems
Replaces / Drop-In Replacement For
The Federal Signal MPEX is the current standard model for explosion-proof pull station replacement in Class I, II, and III hazardous locations. For specific replacement compatibility with legacy models, verify with your system integrator or facility safety officer before ordering.
Works With
- 24 VDC/120 VAC fire alarm control panels
- Standard supervised and unsupervised pull station circuits
- Conventional fire detection and alarm systems
- Emergency response and manual alarm activation systems
























