Overview
The Hoffman E-12PBX pushbutton enclosure is an extra-deep Type 12 enclosure engineered for industrial control panel applications. Manufactured by nVent HOFFMAN, this enclosure accommodates 30.5-mm and 22.5-mm pushbuttons and switches with extended internal depth to house additional contact blocks and control logic.
Key Features
- Extra-Deep Design: 4.75-inch (121 mm) depth accommodates multiple pushbutton contact blocks
- Dual Pushbutton Compatibility: Accepts both 30.5-mm and 22.5-mm pushbutton/switch sizes
- Factory Pre-Drilled: 4-way pushbutton hole pattern for quick installation
- Welded Construction: Continuously welded and ground smooth seams for durability
- Oil-Resistant Gasket: Sealed perimeter gasket resists industrial oils and liquids
- Mounted Hardware: Grounding stud on body and bonding provision on cover
Technical Specifications
- Enclosure Dimensions: 6.00 x 4.00 x 4.75 inches (152 x 102 x 121 mm)
- Enclosure Rating: NEMA/EEMAC Type 12, Type 13
- IP Rating: IP65 per IEC 60529
- Material: Gray steel with welded construction
- Cover: Captivated cover screws thread into sealed wells
- Internal Hinge: Detachable hinge holds cover open during wiring (6.00 x 4.00 enclosure and larger)
- Mounting: External welded-on mounting brackets
- Certifications: UL 508A Listed (File No. E61997); cUL Listed per CSA C22.2 No. 94
Typical Applications
The E-12PBX enclosure is ideal for industrial control systems requiring:
- Machine tool control panels with multiple start/stop buttons
- Process automation and manufacturing line controls
- Emergency stop (E-stop) and safety interlock stations
- Complex pushbutton arrays with auxiliary contact blocks
- Oil and moisture-resistant outdoor or washdown environments
Compatibility & Replacements
The Hoffman E-12PBX is directly compatible with standard 30.5-mm IEC 60947-1 pushbutton stations and 22.5-mm industrial pushbutton switches. It accepts common control devices from manufacturers including Allen-Bradley, Siemens, Eaton, and Schneider Electric. For single-pushbutton applications, consider the E-1PBX; for larger multi-button arrays, evaluate the E-2PBX, E-4PBX, E-6PB, or E-10PB variants. The enclosure’s Type 12 rating makes it a direct substitute for other NEMA Type 12 pushbutton enclosures in dust and moisture-sensitive environments.
