This document provides information on the XAL-53 hazardous location pull station. It can be used in areas with flammable gases, vapors, dusts or fibers. The pull station has a copper-free aluminum enclosure with conduit openings. It provides normally open and closed contacts and is activated by lifting the cover and pulling the ring. The pull station is suitable for Class I, II and III hazardous locations and requires occasional maintenance like lubrication and keeping surfaces clean. It is UL, ULC and CSA listed.

1. DN-5274:A1 • 1/12/10 — Page 1 of 2
XAL-53
Hazardous Location Pull Station
Conventional Initiating Devices
DN-5274:A1 • I-450
Applications
KILLARK® fire alarm stations are suitable for:
• Hazardous areas due to the presence of flammable gases
or vapors, combustible dusts or easily ignitable fibers or fly-
ings.
• Installation at petroleum refineries, chemical and petro-
chemical plants, storage areas, and other processing facili-
ties where hazardous substances are handled and stored.
• Areas where emergency control of fire alarm or signal cir-
cuits is required.
Features
• Enclosure is made of copper-free aluminum alloy.
• Conduit openings are 3/4" (19.05 mm) NPT feed-through.
• Red, textured powder epoxy paint finish is standard on box
and cover and provides high visibility for alarm station.
• Universal (1) normally open and (1) normally closed contact
furnished standard.
• Bilingual nameplates included per CSA requirement.
• Internal ground screw is standard.
• Wiring range is #12 AWG through #24 AWG, solid or
stranded.
Operation
The alarm station is activated by lifting the front cover and pull-
ing down ring. This quick, easy-to-use two-step process pre-
vents unintentional operation. Operator is reset by depressing
shaft and returning plate to original position.
Hazardous Area Classifications
• Class I, Divison 1 and 2, Groups C and D.
• Class I, Zones 1 and 2, Groups IIB, IIA.
• Class II, Division 1 and 2, Group E, F, and G.
• Class III, Hazardous Locations.
• NEMA 7CD, 9EFG.
Operational Data
This enclosure is made of cast, copper-free aluminum alloy. It
is suitable for: Class I, Groups C and D; Class II, Groups E, F,
and G; and Class III hazardous locations. All installations
must comply with applicable local and/or National Electrical
Code.
Like all electromechanical devices, these control stations
require occasional maintenance. Parts may wear out or
become defective due to adverse environmental conditions.
See Maintenance Data below.
Maintenance Data
CAUTION: Disconnect this device from the supplying circuit before
removing the cover.
1. To prevent corrosion, lubricant should be occasionally
applied, as follows:
• Killark® “LUBG” lubricant to box/cover flanges.
• Dow Corning Molykote™ 33 Grease, light consistency, to
operator shaft.
2. Keep all flanges clean and free of scratches.
3. Some internal service parts are available. Consult the
Killark factory for parts breakdowns.
Agency Listings and Approvals
These listings and approvals apply to the modules specified in
this document. In some cases, certain modules or applications
may not be listed by certain approval agencies, or listing may
be in process. Consult factory for latest listing status.
• UL Listed: E50498
• ULC Listed: E50498
• CSA: LR31085
• CSFM: 7150-1439:100
Contact Arrangement
XAL-53
Explosion-Proof Pull Station with Pull Ring
5274pho.jpg
Not Activated Position
Activated Position
5274con1.wmf
5274con2.wmf

2. Page 2 of 2 — DN-5274:A1 • 1/12/10
Notifier is a registered trademark of Honeywell International Inc. KILLARK®
is a registered trademark of Hubbell®. Molykote™ is a trademark of the Dow
Corning Corporation.
©2010 by Honeywell International Inc. All rights reserved. Unauthorized use
of this document is strictly prohibited.
This document is not intended to be used for installation purposes.
We try to keep our product information up-to-date and accurate.
We cannot cover all specific applications or anticipate all requirements.
All specifications are subject to change without notice.
For more information, contact Notifier. Phone: (203) 484-7161, FAX: (203) 484-7118.
www.notifier.com
Made in the U.S. A.
Contact Block Rating
Product Line Information
XAL-53: Explosion-proof, N/O and N/C Contacts.
AC DC
Volts
Make
Amperes
VA
Break
Amperes
VA
Continuous
Carrying
Amperes
Volts Make Break
Continuous
Carrying
Amperes
120 60 7200 6.0 720 10 125 1.10 10
240 30 7200 3.0 720 10 250 0.55 10
480 15 7200 1.5 720 10 600 0.20 10
600 12 7200 1.2 720 10
5274dim1.tif
4-1/2" (114.3 mm)
6-3/8"
(161.93 mm)
5-3/8"
(136.53mm)
2-1/4"
(57.15 mm) 1"
(25.4
mm)
3" (76.2 mm)
2-1/4"
(57.15 mm)
5/8" dia.
(7.94 mm)
(2 holes)
4-5/8"
(117.48mm)