Overview
The Hoffman A604CHNF is a compact steel junction box designed for industrial control panels and electrical equipment protection. This Type 4 enclosure meets NEMA 4, 12, and 13 standards with an IP66 environmental protection rating. The A604CHNF features a continuous hinge with stainless steel clamps on three sides, providing secure access and environmental sealing for both indoor and outdoor wall-mount applications.
Key Features
- Type 4 Continuous Hinge Design: Stainless steel hinge pin and continuous hinge provide long-lasting durability and smooth operation.
- Three-Point Clamp System: Screw-down stainless steel clamps on three sides ensure secure closure and IP66-rated weatherproofing.
- 16-Gauge Mild Steel Construction: ANSI 61 gray polyester powder-coated finish inside and out resists corrosion and delivers professional appearance.
- Welded Seams: Continuously welded and ground smooth seams eliminate weak points and leakage paths.
- Wall-Mount Ready: External mounting brackets included for fast installation on vertical or horizontal surfaces.
- Compact Size: 6 x 4 x 3 inch footprint suits space-constrained electrical rooms and equipment yards.
Technical Specifications
- Dimensions (H x W x D): 6.0 x 4.0 x 3.0 inches (152 x 102 x 76 mm)
- Material: Mild Steel, 16-gauge
- Finish: ANSI 61 Gray Polyester Powder Coat (inside and out)
- NEMA Rating: Type 4, 12, 13
- IP Rating: IP66
- Cover Type: Continuous Hinged with Screw-Down Clamps
- Mounting: Wall-Mount with External Brackets
- Gasket: Oil-resistant gasket for environmental sealing
- Optional Panels: Compatible with A6P4 (mild steel), A6P4G (conductive), stainless steel, and aluminum panels (sold separately)
- Certifications: UL Listed, cUL, IEC, CSA Certified
Typical Applications
The Hoffman A604CHNF serves a wide range of industrial control and protection needs:
- Electrical control panels and terminal block installations
- Outdoor equipment enclosures for HVAC, water treatment, and process control
- Machine control stations and automation interface boxes
- Power distribution and metering equipment housing
- Environmental sensing and monitoring system enclosures
- Junction and cable management in corrosive or wet environments
Compatibility & Replacements
Compatible With
- Standard 24 VDC and 120 VAC control systems
- Weldnuts and terminal block kits for 6.0 x 4.0 inch enclosure sizes
- Wall-mount installation on steel or concrete surfaces
- Optional internal and external panels for signal light and push-button mounting
- Industrial terminal block and relay systems
Replaces / Drop-In Replacement For
- This enclosure may replace other 6x4x3 Type 4 junction boxes in the same size range. Verify door swing direction and hinge position (short side vs. long side) before ordering, as Hoffman produces variants with catalog numbers ending in “S” for short-side hinged units.
Works With
- Standard electrical wiring and conduit (1/2 inch KO openings available with modifications)
- DIN-rail mounted components and terminal blocks
- Stainless steel, aluminum, and composite internal panel materials
- Wall-mount installation hardware and anchoring systems
- Optional drip shield and ventilation kits for enhanced environmental protection
