Overview
The Hoffman E-9PBX pushbutton enclosure is a Type 12 pushbutton enclosure designed to hold 30.5-mm or 22.5-mm pushbuttons and switches. This nine-hole configuration provides space for multiple operator control points in industrial and commercial control panel applications. The enclosure features dimensions of 9.5 x 8.5 x 3 inch (HxWxD) with a screw-on cover with factory stamped 4-way pushbutton holes.
Key Features
- UL 508A Listed, Type 12, 13 rated for indoor industrial use
- Gray steel construction with screw-on cover for secure component mounting
- Internal detachable hinge to hold cover open during wiring for easier installation and maintenance
- Factory stamped 4-way pushbutton holes with standard 2.50-inch center-to-center spacing
- Oil-resistant gasket and continuously welded seams for environmental protection
- Captivated cover screws thread into sealed wells for reliable fastening
Technical Specifications
- Pushbutton Capacity: 9 holes for 30.5-mm or 22.5-mm pushbuttons
- Hole Configuration: 2.50-in. (64-mm) center-to-center of pushbutton holes
- Dimensions: 9.5 x 8.5 x 3 inch (HxWxD)
- Material: Gray Steel
- Cover Type: Screw-on with captivated fasteners
- Ratings: UL 508A Listed; Type 12, 13; cUL Listed per CSA C22.2 No. 94
- Panel: Removable 14 gauge panel included
Typical Applications
- Machine control panels requiring multiple operator inputs
- Industrial automation and process control stations
- Pump and motor starter control enclosures
- Production line stop/start and mode selection interfaces
- Food processing and manufacturing plant control cabinets
- HVAC and facility management control boxes
Compatibility & Replacements
Compatible With
- All standard oil-tight 30.5mm pushbuttons and switches
- 22.5mm compact pushbuttons and pilot lights (fits 4-way holes)
- Standard industrial control cabinets and panels
- UL 508A compliant control system designs
Replaces / Drop-In Replacement For
- Earlier Hoffman E-9PB models (same footprint and hole pattern)
- Generic Type 12 nine-hole pushbutton enclosures with equivalent dimensions
Works With
- All major pushbutton manufacturers (Eaton, Allen-Bradley, Siemens, Omron, Schneider Electric)
- Standard pilot light and indicator lamp components
- Industrial PLC control systems and relay logic circuits
- NEMA and IEC-compliant control panel assemblies
















