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1.1 Description

The NEMA 3R cover kit is designed for D1h and D2h enclosure
sizes for the following applications:

VLT

®

 HVAC Drive FC 102

VLT

®

 Refrigeration Drive FC 103

VLT

®

 AQUA Drive FC 202

VLT

®

 AutomationDrive FC 302

This kit adds a cover to the outside vents of the frequency
converter and provides NEMA 3R compliant protection against
weather and hosed water. The kit is used only with frequency
converters that have E5S in the 13–15 position of the type
code. The type code is found on the nameplate.

1

Protection rating for the NEMA 3R kit

Illustration 1.1 Example of a D-size Enclosure Nameplate

The NEMA 3R kit contains the following parts:

Top plate (1).

Gland plate with attached gasket (1).

NEMA 3R cover (1).

Adhesive label (1).

3-sectioned plastic bag containing:

-

For top plate, lifting eyelets (2) and screws
(6) without captive washers.

-

For gland plate, screws (6) for D1h or (8) for
D2h. These screws have captive washers.

-

For NEMA 3R cover, screws (6) without
captive washers.

1.2 Kit 

Part 

Numbers

Part number

Kit description

176F6302

NEMA 3R cover kit for D1h enclosures

176F6303

NEMA 3R cover kit for D2h enclosures

Table 1.1 Part Numbers for the NEMA 3R Cover Kit

1.3 Safety 

Instructions

WARNING

ELECTRICAL SHOCK HAZARD

VLT® frequency converters contain dangerous voltages when
connected to mains voltage. Improper installation, and
installing or servicing with power connected, can cause
death, serious injury, or equipment failure.
To avoid death, serious injury, or equipment failure:

Only use qualified electricians for the installation.

Disconnect the frequency converter from all power
sources before installation or service.

Treat the bus bar and heat sink as live whenever
the unit has mains voltage connected (including
when the frequency converter is tripped or waiting
for a command).

Follow the guidelines in these instructions and local
electrical safety codes.

Installation Instructions

NEMA-3R Cover Kit for D1h–D2h
VLT

®

 FC Series FC 102, FC 103, FC 202, and FC 302

Danfoss A/S © 06/2015 All rights reserved.

MI70I102

Summary of Contents for NEMA-3R

Page 1: ...washers For NEMA 3R cover screws 6 without captive washers 1 2 Kit Part Numbers Part number Kit description 176F6302 NEMA 3R cover kit for D1h enclosures 176F6303 NEMA 3R cover kit for D2h enclosures...

Page 2: ...s are fully discharged Voltage V Frequency converter model Minimum waiting time minutes 3x400 N110 N315 20 N90K N250 20 3x690 N75K N400 20 N55K N315 20 Table 1 2 Discharge Time 1 4 Installation 1 4 1...

Page 3: ...g with the gasket side facing the opening See Illustration 1 4 4 Secure the new gland plate to the frequency converter using the provided screws with captive washers 6 for D1h or 8 for the D2h Torque...

Page 4: ...urrent of a frequency converter with the NEMA 3R cover is 90 of its current rating For example in a FC 302N250T5 standard IP54 frequency converter the nominal output current in normal overload mode is...

Page 5: ...llustration 1 6 Derating for Ambient Temperature Installation Instructions NEMA 3R Cover Kit for D1h D2h VLT FC Series FC 102 FC 103 FC 202 and FC 302 MI70I102 Danfoss A S 06 2015 All rights reserved...

Page 6: ...Illustration 1 7 Exterior Dimensions for D1h with NEMA 3R Kit Installation Instructions NEMA 3R Cover Kit for D1h D2h VLT FC Series FC 102 FC 103 FC 202 and FC 302 6 Danfoss A S 06 2015 All rights re...

Page 7: ...ation 1 8 Exterior Dimensions for D2h with NEMA 3R Kit Installation Instructions NEMA 3R Cover Kit for D1h D2h VLT FC Series FC 102 FC 103 FC 202 and FC 302 MI70I102 Danfoss A S 06 2015 All rights res...

Page 8: ...ucts already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed All trademarks in this material are property of the resp...

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