APWK3523NF

Overview

The APWK3523NF is a framed inspection window kit manufactured by Hoffman Enclosures, Inc. It features a steel frame and measures 37.50 inches in width by 25.50 inches in height with a depth of 0.31 inches. The unit is designed for indoor applications and provides NEMA Type 4, 12, and 13 protection ratings. It also meets UL 508A standards and CSA approval requirements. The kit includes a gray mild steel frame and is intended to be installed into simple rectangular enclosure cut-outs.

Feature Summary

• Framed construction made from heavy gauge cold rolled steel
• Provides NEMA Type 4, 12, and 13 environmental protection
• Meets UL 508A and CSA approval standards
• Designed for easy installation via simple rectangular cut-outs

Applications

• Indoor industrial control enclosures requiring visual inspection access
• Arc flash safety systems compatible with Hoffman enclosures
• Equipment housings needing NEMA Type 4 and 12 ingress protection

Procurement Notes

Verify that the enclosure cut-out dimensions match the required 37.50 x 25.50 inch opening before procurement. Confirm that the application environment is strictly indoor, as this model is rated for indoor use only. Ensure compatibility with existing Hoffman Arc Flash Safety Systems if applicable. Check for UL 508A compliance requirements specific to your facility's electrical standards.

Selection Notes

Select this model when a large inspection window is needed for NEMA Type 4, 12, or 13 rated indoor enclosures. It is suitable for applications requiring UL 508A and CSA approvals. Choose this part over non-framed options if structural integrity and standardized framing are required. Ensure the enclosure material supports the mounting method specified for steel window kits.

Part Context

This component belongs to the Hoffman Enclosures window kit series, which provides visual access to internal equipment while maintaining environmental sealing. These kits are commonly used in industrial automation and electrical distribution panels where operator visibility is necessary without compromising safety ratings or enclosure integrity.

Replacement Considerations

No public confirmed substitute part numbers are available for this specific model.