Watlow Electric FREEZE-SAFE User Manual

FREEZE-SAFE

FREEZE-SAFE
Classified Location
Flexible Heated Mats
for Low Temperature
Applications

Based on its patented THERMOPOLYMER®technology,
Watlow has embedded a safe, low watt density heating
element into a thermoplastic elastomer mat.

Watlow’s FREEZE-SAFE hazardous location Thermo Plastic
Elastomer (TPE) heated mats are custom designed for
your application in sizes or shapes up to 20 x 25 inch
(508 x 635 mm). Consult the factory for larger sizes.

FREEZE-SAFE heated mats are designed for use in
classified locations. (Class 1, Div. II, Group A, B, C, D).
Class 1, Div. II are locations where explosive vapor conditions
could exist in the event of abnormal operation, an accident,
or component failure. Flammable gases and liquid groups
(such as acetylene, hydrogen, ethylene, gasoline and
propane)
500 through 505 of the National Electric Code for more
information on the use of electrical devices in classified
locations.

The hazardous location heated mat can be used in a variety
of ways. These flexible panels provide spot supplemental
heat-tracing while simplifying installation and maintenance.
Nearly any curved 3-D shape can be wrapped with a Watlow
FREEZE-SAFE flexible heated mat. Multiple heaters can be
used to cover the entire surface.

are included in this classification. Refer to articles

Performance Capabilities

• Watt densities from 0.1 to 1 watt per square inch

• Operating wattage from 5 to 350W

• Operating voltages from 12 to 48V, 120 or 240V

• Ambient operating temperatures from -40 to 24°C

F)

®

515 listed

°

A flammability rating

(-40 to 75

• Maximum heater surface temperature 50°C (122°F)

• Supplied with 18 gauge, three conductor STOW cord,

maximum length is 18 inches

• UL

ested to meet a 5V

T

•

Applications

• Electrical box heating

• Liquid line, cylinder, tube and pipe freeze protection

etrochemical refining

P

•

• Power generation water injection

• Warming applications

• Low temperature processing

Features and Benefits

THERMOPOLYMER heated mats are free from seams
and joints

• Safe for use in classified and outdoor environments

Mats are hermetically sealed against liquids and
explosive vapors

• Prevents nuisance faults

• Prevents heater damage due to dangerous leaks

Excellent resistance to UV, non-aromatic fuels, abrasion
and tearing

• Provides toughness and durability

Reduced maintenance cost

• Allows for easy removal and installation for valve and

pipeline maintenance

Long heater life

• Low watt density

Made to fit unusual shapes

• Custom designed and molded by the factory to

accommodate curved or other odd shapes

Availability

Hazardous location heater panels are custom designed for
your application. Consult factory for details and pricing.

UL®is a registered trademark of Underwriter’s Laboratories, Inc.

COL-FRZS-0407

2101 Pennsylvania Drive
Columbia, Missouri 65202 USA
Phone: [phone]
FAX: [phone]
Internet: www.watlow.com
E-mail: [e-mail]

To be automatically connected to the nearest North American Technical and Sales Office call:

1-800-WATLOW2

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2007 Watlow Electric Manufacturing Company

©