Overview
The Hoffman TEP4SS exhaust grille is a side-mount thermal management accessory designed for nVent Hoffman enclosure cooling systems. This 4-inch package combines a brushed stainless steel Type 304 grille with integrated air filtration to maintain proper enclosure temperature while protecting internal components from contamination. The TEP4SS is part of the TFP Series and delivers reliable, simple filtered airflow for enclosures with limited space.
Key Features
- Type 304 Stainless Steel: Brushed finish resists corrosion in harsh industrial environments
- Dual Filter Options: Includes washable foam Type 1 or disposable Type 12 filters to match UL rating requirements
- NEMA 1 Rated: Protects enclosure contents from dust and direct spray
- Compact Footprint: Side-mount design fits 4-inch fan packages for space-constrained installations
- Integrated Finger Guard: Safety grille with filter retainer prevents accidental contact
- Operating Temperature: Rated to 158°F for continuous thermal management duty
Technical Specifications
| Catalog Number | TEP4SS |
| Fan/Package Size | 4 inches nominal |
| Material/Finish | Stainless Steel Type 304, brushed |
| Grille Dimensions (H × W × D) | 6.29 in × 7.37 in × 2.65 in |
| Enclosure Rating | NEMA 1 |
| Max Operating Temperature | 158°F (70°C) |
| Filter Type (Included) | Washable foam (Type 1) or disposable (Type 12) |
| Mount Style | Side-mount TFP Series |
| Certifications | UL, CE, UKCA; RoHS/REACH compliant |
| Manufacturer | nVent HOFFMAN (Hoffman Enclosures) |
Typical Applications
The Hoffman TEP4SS is ideal for:
- Industrial control panel enclosure cooling and thermal regulation
- Electrical distribution cabinets requiring filtered exhaust ventilation
- Compact machinery and process equipment housings
- Applications where space limitations prevent larger fan packages
- Environments requiring Type 12 UL-rated protection with disposable filtration
- Harsh outdoor or washdown-prone facilities where stainless construction is essential
Compatibility & Replacements
Compatible With
- nVent Hoffman TFP Series 4-inch cooling fan packages
- nVent Hoffman enclosure systems with side-mount thermal management provisions
- Standard industrial control panel designs requiring Type 1 or Type 12 cooling
- Schneider Electric, ABB, Siemens, and other IEC-standard enclosure platforms (with proper mounting verification)
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator or original equipment documentation. The TEP4SS is the primary current-generation exhaust grille for the TFP 4-inch line; legacy equivalent models may exist but require cross-reference confirmation.
Works With
- nVent Hoffman TFP Series filter fans and cooling packages
- UL Type 1 (standard industrial) and Type 12 (wash-down) rated enclosure systems
- Stainless steel enclosure cabinets for corrosive/marine/food processing environments
- Thermal management software monitoring systems (via optional EMC upgrade kit)

