Suffix Glossary
| F - | Flush mount |
| I - | Internal mount |
| P - | Pressure test against water leaks. |
| S - | Corrosion resistant coating |
| SC - | Corrosion resistant coating core only |
| SH - | Corrosion resistant coating on housing only |
| SS - | Stainless Steel Housing |
| ST - | Stainless Steel In/Outlets ( air to water ) |
| SAC - | Stainless Steel coils aluminum fins ( air to water ) |
| HL - | External Hazardous Location Fan (purge unit) Div 2 |
| HL2- | Hazardous Location Fan (non purge) Div 2 |
| XP - | Hazardous Location (unit with blower) Div 1 & 2 |
| Type 12 - | UL type 12 NEMA 12 |
| Type 4 - | UL type 4 NEMA 4 |
| Type 4X - | UL type 4X NEMA 4X ( air to water ) |
| CE - | European safety standard ( Communiqué European ) |
| RH - | Rain hood ( flush Air to Air mount units ) UL Type 3R |
| W - | Wash Down Fan |
| WL - | Wet location fan (UL recognized for hosedown) |
| WL - RH | WL fan and rain hood (type 4/outdoor) |
| NP - | Custom |
| NF - | No-fans |
| NIF - | No inside fan |
| NOF - | No outside fan |
| RF - | Reversed fan |
| RIF - | Reversed inside fan |
| ROF - | Reversed outside fan |
- NEMA DESIGNATIONS
The National Electrical Manufacturer’s Association (NEMA) has developed a set of standards for the Electrical Industry to assist the user and the manufacturer in the identification and the standardization of many electrical components. - NEMA Type 1- General Purpose indoor. Type 1 enclosures are intended for use INDOORS, primarily to prevent accidental contact of personnel with the enclosed equipment, in areas where unusual service conditions do not exist.
- NEMA Type 12- Dust tight, drip tight. Type 12 enclosures are intended for use INDOORS to protect the enclosed equipment against falling non-corrosive liquids and falling dirt.
- NEMA Type 3-Dustight, Raintight and Sleet/Ice Resistant Outdoor. Type 3 enclosures are intended for use OUTDOORS to protect the enclosed equipment against windblown dust and water.
- NEMA Type 3R- Raintight and Sleet/Ice Resistant Outdoor. Type 3R enclosures are intended for use OUTDOORS to protect the enclosed equipment against rain and meet the requirements of Underwriters’ Labs UL508 applying to “Rainproof Enclosures”.
- NEMA Type 4- Watertight and Dusttight Indoor and Outdoor. Type 4 enclosures are intended for use INDOORS or OUTDOORS to protect the enclosed equipment against splashing water, seepage of water, falling or hose directed water, and severe external condensation.
- NEMA 4X- Watertight, Dust tight and Corrosion Resistant Indoor and Outdoor. Type 4X enclosures have the same protection and provisions as Type 4 enclosures, and in addition, are corrosion- resistant.
