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Required Accessories for ALL Model EPWN &
Protected Enclosures
ETWN

EPWN Nameplate
Enclosure Pressure & Enclosure Temperature
Model EPWN Enclosure Pressurization Warning Warning Nameplates
Nameplates are intended for all protected
enclosures. One (1) nameplate is furnished with
all Pressurization and Purging Units, but additional Technical Bulletin EWN TB-R0 © 07.10.2018
nameplates must be ordered separately at time of
order to label all doors of the protected enclosure,
as required by NFPA 496.

These nameplates are an essential accessory
and required by NFPA 496 to ensure operators
and maintenance personnel are advised that
they must not open the protected enclosure while
internal devices that are not suitable for use in
the Hazardous Area are energized. To meet
protected enclosure labeling requirements for both
Class I and Class II, the warning also prescribes
that all combustible dust must be removed from
the protected enclosure and it must be properly
purged or pressurized after it is opened, before
re-energizing any internal devices that are not
suitable for use in the Hazardous Area.

ETWN Nameplate
Model
Model ETWN Enclosure Temperature Warning
Nameplates are intended for protected enclosures EPWN
that feature internal devices with surface
temperatures that exceed the T Code Rating of
the surrounding Hazardous Area atmosphere.
These items must be ordered separately at time
of order and are required for all doors of the
protected enclosure.
They are an essential accessory and required by
NFPA 496 to ensure operators and maintenance
personnel are advised that they must wait for
the established time period before opening the
protected enclosure to prevent ignition of the
surrounding atmosphere. The cooling time in
minutes must be determined by the user and
inscribed on the nameplate at time of installation,
or you may request the inscription at time of order
if already established and known.

Specifications Model
ETWN
Dimensions: 5” W x 2” H
Mounting Hole Diameter: 0.125”
Adhesive Backing: * 3M VHB Achieve total compliance to NFPA 496 by applying
Material: 0.10” Anodized Aluminum
Legends: Silk-Screened Enamel Paint these labels to all doors of your protected enclosure!
* Door surfaces must be cleaned for maximum adhesion.
All Specifications subject to change without notice. Please contact a Sales Associate
3M & VHB are trademarks of the 3M Corporation for more information and customization options.