nVent Hoffman A50 User manual

© 2018 Homan Enclosures Inc. PH 763 422 2211 • nVent.com\HOFFMAN 87567343
Rev. C P/N 11358840
Fiberglass Small Enclosure
A50

© 2018 Homan Enclosures Inc. PH 763 422 2211 • nVent.com\HOFFMAN 87567343
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MOUNTING WITHOUT FEET
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Instruction Steps:
1. Place sealing washers and 1/4–20 screws in corner bosses of enclosure.
2. Align screws protruding from rear of enclosure with holes on the mounting
surface. Feed screws through holes and secure with 1/4–20 nuts and
washers.
NOTE: Sealing washers are included and are required to maintain the integrity of the enclosure.
All other hardware is not provided and those items shown are merely suggestions. Any type of
1/4” screws, washers, and nuts are acceptable as long as the screw head is slotted or has a
recessed head. The bosses in the enclosure do not provide clearance for a wrench or socket.
3. When connecting conduit to this enclosure, use only U.L. listed or recognized
conduit hubs that have the same environmental type rating as the enclosure
rating.
4. Conduit hubs must be connected to the conduit before being connected to
the enclosure.
5. In order to maintain a UL/CSA 3R rating, a 1/4” (6 mm) diameter hole must be
drilled on the bottom surface of the enclosure at the lowest point.

© 2018 Homan Enclosures Inc. PH 763 422 2211 • nVent.com\HOFFMAN87567343 - 3 -
MOUNTING WITH FEET
UL/CSA requirement: Use of mounting feet mandatory on all type 3, 4, 4X applications.
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Instruction Steps:
1. Place sealing washers and square nuts in corner bosses of enclosure.
2. Insert at head screws through mounting feet, enclosure mounting
holes, sealing washers, and square nuts. Finally, tighten all fasteners.
NOTE: Sealing washers are included and are required to maintain the integrity of the enclosure.
Flat head screws and square nuts are included with the mounting foot kit which must be purchased
separately.
3. When connecting conduit to this enclosure, use only U.L. listed or
recognized conduit hubs that have the same environmental type rating
as the enclosure rating.
4. Conduit hubs must be connected to the conduit before being
connected to the enclosure.
5. In order to maintain a UL/CSA 3R rating, a 1/4”(6 mm) diameter hole
must be drilled on the bottom surface of the enclosure at the lowest
point.

© 2018 Homan Enclosures Inc. PH 763 422 2211 • nVent.com\HOFFMAN 87567343
- 4 -
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TYPICAL GROUNDING ILLUSTRATIONS
METALLIC CONDUIT NON-METALLIC CONDUIT
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For CALIFORNIA residents only:
WARNING: This product contains chemicals known to the State of California to cause cancer and
birth defects or other reproductive harm.
Please note that by posting this Proposition 65 warning, we are notifying you that one or more of
the Proposition 65 listed chemicals may be present in this product. With Ho󰘯man’s products, the
exposure to these chemicals may be of no signi󰘰cant risk to you, but out of caution and to ensure
your well-being, we have elected to place this warning on our site to make sure our customers are
informed.
You can 󰘰nd more information at http://www.oehha.ca.gov/proposition-65/about-proposition-65.