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 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
UF – Universal Fan (wet location, washdown and sun exposure applications)
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 inside 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.

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