Fact Sheet
Mount your drive
where you want to...
not where you have to
NEMA/UL
Type
4X/3R
www.danfossdrives.com
Danfoss FC series can withstand even the harshest pressure washing environments.
A NEMA/UL Type 4X rated enclosure provides maximum mounting flexibility
Outdoor installation
Many VLT® drives are installed outdoors
therefore 4x ratings are available for
FC series up to 90 kW and NEMA 3R
up to 250 kW. NEMA is a technical
standard from the National Electrical
Manufacturers Association (NEMA).
This standard, unlike the IP classification, includes reliability testing under
specific weather conditions for certain
classes. For example, the unit is
exposed to a water spray until ice forms
on the exterior. Prolonged exposure to
salt spray is also tested.
2
Improved reliability
As with the IP ratings, the user can
Use specific NEMA ratings to decide
the suitability of the unit for certain
environmental conditions – although
the unit‘s base specification always
remain valid, Danfoss offers a protective
weather shield to prevent air vents
becoming blocked by leaves or other
debris. The LCP is also protected against
UV – as is the whole enclosure.
3rd party testing
The FC-Series has received certification
from an independent body,
Underwriters Laboratories (UL) and
has achieved Type 4X approval up to
90 kW and NEMA 3R up to 250 kW. For
details, including Type 3R, refer to drive
documentation.
Approved series
n VLT® HVAC Drive FC 102
n VLT® Refrigeration Drive FC 103
n VLT® AQUA Drive FC 202
n VLT® AutomationDrive FC 301/302
The perfect solution for demanding
applications, such as:
n Air handlers
n Pump stations
n Cooling towers
n Other outdoor applications
Power range NEMA 4X
n 200 V range: up to 45 kW
n 400 V range: up to 90 kW
n 575 V range: up to 90 kW
n 690 V range: up to 90 kW
Power range NEMA 3R
n 200 V up to 45 kW
n 400 V up to 315 kW
n 460 V up to 450 hp
n 575 V up to 400 hp
n 690 V up to 400 kW
Comparison of NEMA ratings
NEMA 250 Standard
Type 3R
Enclosures constructed for either
indoor or outdoor use. Protection
against rain, sleet, snow. Will be
undamaged by external formation of
ice on the enclosure. Due to a drain
hole, the class is comparable to IP 23.
NEW!
One of the smallest NEMA 3R solutions
for drives from 55-400 kW is now
available.
To achieve the NEMA 3R rating, the
drive must be ordered with an “E5S”
enclosure, which includes an anticondesation heater and stainless steel
screws on the outside of the drive. The
corresponding kits must be ordered
to complete the protection. The kit
consists of the cover (with rain hood
and air baffle), special gland plate, and
cover vent plate.
Type 4X
Enclosures constructed for either
indoor or outdoor use. Protection
against windblown rain, sleet, snow,
splashing water and hose directed
water. Will be undamaged by external
formation of ice on the enclosure.
Type 4X is also used inside, where
equipment is washed with soap/
solvents. Reliability tested under
specific weather conditions, including
water spraying until ice forms on the
exterior and prolonged exposure to salt
spray. This class is comparable to IP 66.
Provides a degree of protection against
the following conditions
Access to hazardous parts
Ingress of solid foreign objects (falling dirt)
Ingress of water (dripping and light splashing)
Ingress of solid foreign objects
(circulation dust, lint, fibres and flyings**)
Ingress of solid foreign objects
(settling airborne dust, lint, fibres and flyings**)
Ingress of water (hose-down and splashing water)
Oil and coolant seepage
Oil or coolant spraying and splashing
Corrosive agents
Ingress of water (occasional temporary submersion)
Ingress of water (occasional prolonged submersion)
* These enclosures may be ventilated.
** These fibres and filings are non-hazardous materials and are not considered Class III type ignitable fibres or combustible filings.
For Class III type ignitable fibres or combustible filings see the National Electrical Code, Article 500.
1* 2* 4 4X 5 6 6P 12 12K 13
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Provides a degree of protection against
the following conditions
Access to hazardous parts
Ingress of water (rain, snow and sleet**)
Sleet***
Ingress of solid foreign objects
(windblown dust, lint, fibres and flyings)
Ingress of water (hose-down)
Corrosive agents
Ingress of water (occasional temporary submersion)
Ingress of water (occasional prolonged submersion)
* These enclosures may be ventilated.
** External operating mechanisms are not required to be operable when the enclosure is ice covered.
*** External operating mechanisms are operable when the enclosure is ice covered.
3 3X 3R* 3RX* 3S 3SX 4 4X 6 6P
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3
Outdoor weather shield
Designed to be mounted above the
VLT® drive to protect from direct sun,
snow and falling debris.
Ordering number
Frame A4, A5, B1, B2........................13 0 B 4598
Frame C1, C2 ....................................... 130 B 4597
D1h .............................................................176F63 02
D2h ............................................................ 176F63 03
Stainless steel back plate
Used to direct air from the fan through
the rear heat sink. This is required when
drive is not mounted against a flat
surface, panel, or wall.
Watertight USB plug
A USB plug can be mounted in the
base of the enclosure, allowing the
drive to stay closed while making setup
or programming changes using MCT 10
setup software.
Ordering number
Frame A4, A5, B1 ................................ 130 B1155
Frame B2, C1, C2 ................................ 130 B115 6
Kit ordering codes
Ordering number
D1h .............................................................176F63 02
D2h ............................................................ 176F63 03
Danfoss Drives, 4401 N. Bell School Rd., Loves Park, IL 61111, Tel. 1-888-DANFOSS, www.danfossdrives.com
DKDD.PFM.100.A4.22 © Copyright Danfoss Drives | 2019.12
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