Overview
The Hoffman E4SPBX pushbutton enclosure is an extra-deep steel enclosure built for reliable control and monitoring applications. Designed to hold 30.5-mm and 22.5-mm pushbuttons and switches, with a depth of 4.75 inches (121 mm) to accommodate additional pushbutton contact blocks. This Type 12/13 rated enclosure meets the requirements of UL 508A and is suitable for indoor electrical environments where operator controls need robust protection.
Key Features
- 16 or 14 gauge steel construction with continuously welded and ground smooth seams
- Captivated cover screws thread into sealed wells, bonding provision on cover, grounding stud on body
- Oil-resistant gasket with factory stamped 4-way pushbutton holes
- Internal detachable hinge on 6.00 x 4.00 x 4.75 in. enclosures to hold cover open during wiring
- External welded-on mounting brackets for easy installation
- UL 508A Listed and cUL Listed per CSA C22.2 No. 94; Type 12, 13; IP65 rated
Technical Specifications
Overall dimensions: 6.00 x 4.00 x 4.75 in. (152 x 102 x 121 mm). The enclosure features 4-hole pushbutton configuration with 30.5-mm hole size. Steel material provides durability and electromagnetic shielding for industrial control systems. The extra depth allows mounting of auxiliary contact blocks and terminal strips beyond the primary pushbutton array.
Typical Applications
The Hoffman E4SPBX is widely used in machine control, process automation, pump start/stop circuits, emergency stop systems, and general operator interface applications. Its Type 12 rating makes it suitable for light industrial and commercial indoor environments. The extra depth and 4-hole configuration support complex control logic with multiple pushbutton and indicator light combinations.
Compatibility & Replacements
The E4SPBX accommodates standard 30.5-mm (22.5-mm) oil-tight pushbuttons and switches from most major manufacturers. It integrates with Hoffman pushbutton bodies, legend plates, and illuminated pushbutton modules. For applications requiring different environmental protection ratings, Hoffman offers Type 4 Extra-Deep Pushbutton Enclosures with stainless steel screws and high-performance polyurethane gasket for enhanced environmental protection. Always verify mounting hole spacing and pushbutton thread size compatibility before ordering replacements.
