ABB DriveIT ACH550-UH - Degrees of Protection; Ambient Conditions

244 ACH550-UH User’s Manual
Technical Data
Degrees of Protection
Available enclosures:
• IP 21 / UL type 1 enclosure. The site must be free of airborne dust, corrosive
gases or liquids, and conductive contaminants such as condensation, carbon
dust, and metallic particles.
• IP 54 / UL type 12 enclosure. This enclosure provides protection from airborne
dust and light sprays or splashing water from all directions.
Compared to the IP 21 / UL type 1 enclosure, the IP 54 / UL type 12 enclosure has:
• The same internal plastic shell as the IP 21 enclosure
• A different outer plastic cover
• An additional internal fan to improve cooling.
• Larger dimensions
• The same rating (does not require a derating).
Ambient Conditions
The following table lists the ACH550 environmental requirements.
Ambient Environment Requirements
Installation Site
Storage and Transportation in the
protective package
Altitude
• 0…1000 m (0…3,300 ft)
• 1000…2000 m (3,300…6,600 ft) if
P
N
and I
2
derated 1% every 100 m
above 1000 m (300 ft above 3,300 ft)
Ambient
temperature
• -15…40 ºC (5…104 ºF)
• Max. 50 ºC (122 ºF) if P
N
and I
2
derated to 90%
-40…70 ºC (-40…158 ºF)
Relative
humidity
< 95% (non-condensing)
Contamination
levels
(IEC 721-3-3)
• No conductive dust allowed.
• The ACH550 should be installed in
clean air according to enclosure
classification.
• Cooling air must be clean, free from
corrosive materials and free from
electrically conductive dust.
• Chemical gases: Class 3C2
• Solid particles: Class 3S2
Storage
• No conductive dust allowed.
• chemical gases: Class 1C2
• solid particles: Class 1S2
Transportation
• No conductive dust allowed.
• Chemical gases: Class 2C2
• Solid particles: Class 2S2
Sinusoidal
vibration
• Mechanical conditions: Class 3M4
(IEC60721-3-3)
• 2…9 Hz 3.0 mm (0.12 in)
• 9…200 Hz 10 m/s
2
(33 ft/s
2
)
In accordance with ISTA 1A and 1B
specifications.
Shock
(IEC 68-2-29)
Not allowed max. 100 m/s
2
(330 ft/s
2
), 11ms
(36 fts)