Hoffman A30N24ALP Industrial Enclosure with PLC Add-ons

The Hoffman A30N24ALP is a NEMA 12 rated industrial enclosure, sized 30 inches wide × 24 inches high × 8 inches deep. It is designed to house electrical and electronic components such as PLCs, power supplies, I/O modules, and terminal blocks. The enclosure is constructed from heavy-gauge steel with a gray powder-coat finish. It includes a removable mounting plate, a gasketed door with a latch, and knockouts for conduit entry. This unit comes with additional PLC-related accessories (add-ons) such as DIN rails, cable glands, and possibly a sub-panel. The A30N24ALP is suitable for factory automation, machine control, and HVAC applications where protection against dust, oil, and non-corrosive coolants is required.

Technical Specifications

Dimensions: 30.00″ (762 mm) W × 24.00″ (610 mm) H × 8.00″ (203 mm) D. Material: 14-gauge steel (body), 12-gauge steel (door). Finish: ANSI 61 gray powder coat. Protection rating: NEMA 12 / IP54 (dust-tight, oil-resistant). Included mounting plate: 0.125″ steel, gray finish, with mounting holes. Door: hinged left, with quarter-turn latch and padlock hasp. Knockouts: multiple on sides and bottom. Weight: approximately 60 lbs. Certifications: UL 508A, CSA, CE. The enclosure is also available with a viewing window as an option (not included).

Key Features

• NEMA 12 rated for industrial environments (dust, oil, coolant)

• Heavy-gauge welded steel construction

• Removable mounting plate for easy component installation

• Includes PLC add-ons: DIN rails, cable glands, terminal blocks

• Quarter-turn latch with padlock provision

• Gasketed door for seal integrity

• Ground studs inside for bonding

PLC Add-ons Included

The “add-ons” typically include: 2 pieces of 35 mm DIN rail (pre-drilled for mounting), grounding bars, cable entry glands (PG or NPT), and a set of terminal blocks (e.g., 20-pin feed-through). These accessories simplify the installation of PLC components such as power supplies, CPUs, I/O modules, and relays.

Installation

Mount the enclosure to a wall or machine frame using the top and bottom mounting flanges (four mounting holes). Ground the enclosure via the internal ground stud. Install the DIN rails on the mounting plate. Attach PLC modules and other devices. Route cables through the knockouts and secure with glands. The door can be adjusted for alignment. Ensure the gasket is clean for proper sealing.

Applications

This enclosure is used as a control cabinet for PLC-based automation systems. Typical sectors include manufacturing plants, packaging lines, material handling, and food processing (non-washdown). The NEMA 12 rating allows installation in areas with oil mist or non-corrosive dust.

Maintenance

Periodically check the door gasket for damage. Clean the interior with vacuum. Ensure all ground connections are tight. Replace any damaged components. The enclosure itself requires no regular maintenance.

Conclusion

The Hoffman A30N24ALP enclosure with PLC add-ons provides a ready-to-use housing solution for industrial control systems. Its robust construction and included accessories make it convenient for system integrators and maintenance teams.