nVent HOFFMAN 99401640 Lockwasher Instruction Manual
- June 1, 2024
- nVent HOFFMAN
Table of Contents
NVent HOFFMAN 99401640 Lockwasher
LOCKWASHER INSTRUCTION
- Install the enclosed external toothed lock washer under one of the nuts securing the panel to ensure bonding between the panel and enclosure.
HUB INSTALLATION INSTRUCTION
- Use only approved watertight, rigid conduit hubs that are designed to fit into standard conduit openings.
- Conduit entry can be made in the top or bottom end or through the side walls of this enclosure.
- Use a hole saw or greenlee–type punch to cut the required holes.
(see the table below for the hole size and flat surface area required) Trade Size of
Conduit|
Recommended
Diameter of
Opening
|
Recommended
Minimum Diameter
of Flat Surface
---|---|---
1/2| 7/8| 1 3/16
3/4| 1 3/32| 1 1/2
1| 1 23/64| 1 7/8
1 1/4| 1 23/32| 2 3/8
1 1/2| 1 31/32| 2 5/8
2| 2 15/32| 3 1/4
2 1/2| 3| 3 3/4
3| 3 41/64| 4 7/16
3 1/2| 4 5/32| 4 15/16
4| 4 11/16| 5 7/16
5| 5 25/32| 6 3/8
6| 6 29/32| 8
4. Install the hub according to the hub manufacturer’s instructions.
Customer Support
Rev. D © 2024 Hoffman Enclosures Inc.
PH 763 422 2211 • nVent.com/HOFFMAN
P/N 99401640 87569062
References
Read User Manual Online (PDF format)
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