Automatic Snow/Ice Melting Accessory
MODEL SC–40 Satellite Contactor
(PDF Version  )
BENEFITS
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Low cost control of larger snow melting systems |
FEATURES
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Contactor rating of 50 amps per pole |
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Supply options: 208, 240, 277 and 480 volts |
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Single and three-phase power control |
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Integral 30 mA GFCI |
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U-L Listed, CSA Certified |
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Self-test feature |
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Simple installation |
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Low Cost |
DESCRIPTION
The patented SC–40 Satellite Contactor is a power control
peripheral for a APS–4 Snow Switch and similar Environmental
Technology, Inc. products. The APS–4 Snow Switch operates
the SC–40s whenever its contactor operates. That is,
during snow and for the hold?on time thereafter.
The integral 30 mA ground fault circuit interrupter (GFCI)
along with a test/reset facility ensure safety along with
NEC and local code compliance. Partitioning heater loads for
multiple SC-40s prevents the nuisance GFCI tripping that is
often unavoidable when controlling a large system with a single
contactor. The self-test facility operates heaters for one
minute with a duty cycle limited to 33% for safer heater testing
during the summer months.
An APS–4 operates up to ten SC-40s. The size and location
of the heaters determines the number of SC-40s required. The
APS–4 and its SC–40s can be separated by up to
1,000ft (305m).
Supply voltage options include 240 single phase or 208, 277
and 480 volts 3 phase, with a contactor rating of 50 amps
per pole. For installation simplicity, SC–40 control
wiring is NEC Class 2.
The SC–40's non-metallic enclosure is rated for protected
NEMA 3R locations in the temperature range of -40º to
160ºF (-40º to 60ºC).
ORDERING INFORMATION
| Order Number |
Description |
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| 17541 - SC-40 |
Satellite Contactor, 240 VAC Single Phase |
| 18845 - SC-40 |
Satellite Contactor, 208 VAC Three Phase (208 - 240
VAC Single Phase) |
| 18847 - SC-40 |
Satellite Contactor, 277 / 480 VAC Three Phase |
LIMITED WARRANTY
ETI's Two year limited warranty covering defects in workmanship
and materials applies. Contact Customer Service for complete
warranty information.
DISCLAIMER
Environmental Technology, Inc. makes no representations or
warranties, either expressed or implied, with respect to the
contents of this publication or the products that it describes,
and specifically disclaims any implied warranties
of merchantability or fitness for any particular purpose.
Environmental Technology, Inc. reserves the right to revise
this publication, and to make changes and improvements to
the products in this publication, without the obligation of
Environmental Technology, Inc. to notify any person or organization
of such revisions, changes or improvements. The ETI logo,
Snow Switch, Floorstat, Tracon, and Heat Systems are registered
trademarks of Environmental Technology, Inc. We Manage Heat,
Digital Anticipation, ComfortTouch, Dry Floors, LCD, APS,
SC, GIT, SIT, CIT, ES, HSC, FWT, GPT, ADH, EDH, RCM, RCD,
RCU, FMC, SMT are trademarks of Environmental Technology,
Inc. Copyright 2000, All rights reserved.
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