ETI MODEL APS-3B Snow Switch. Automatic Snow/Ice Melting System Controller.

We are an authorized stocking distributor for ETI (Environmental Technology Inc.)

Links to other ETI products:
MODEL RCU–1 REMOTE CONTROL UNIT.
MODEL CIT–1 Snow Sensor
MODEL GIT–1 Automatic Gutter Deicing Control
MODEL SIT–6E Pavement-Mounted Sensor 

BENEFITS

• Automatic snow/ice melting control
• Minimum energy costs

FEATURES

• Controls mechanically-held contactors
• Remote control/monitor (available option)
• NEMA 3R enclosure
• U-L Listed
• Adjustable heater hold-on timer
• Heater cycle push button
• Multiple sensor capability

DESCRIPTION

In conjunction with up to six sensors residing in target zones, the microprocessor-based APS-3B provides effective, economical automatic control of snow melting applications for walkways, ramps, driveways, gutters and downspouts. Operating at either 120 volt or 208-240 volt, 50/60 Hz, the APS-3B's DPDT output relay switches 24 Amp heater loads or directly operates both mechanically and electrically held remote contactors.

The adjustable hold-on timer provides up to 10 hours of heater operation after snowfall ceases, to complete snow/ice melting. Independent of weather conditions, a manual heater cycle control operates heaters for the hold-on period to clear tracked slush and drifted snow. LEDs provide indication of power, sensor status, heater operation and ground fault. Remote heater cycle and system indication is provided by RCU-1 optional accessory.

The APS-3B nonmetallic enclosure is suitable for NEMA 1 through 3R, 12 and 13 applications over an ambient temperature range of -40° to 136° F(-40° C to 58°).

For installation simplicity and low cost the sensor, CommLink and RCU-1 wiring is NEC Class 2.

ETI's Two year limited warranty covering defects in workmanship and materials applies. Contact Customer Service for complete warranty information 

Installation and Operation Manual

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Item ID	Catalog #	Description	Price	Click "Select" below
ETI17708	APS-3B-120	Control Panel, 120 VAC (UL Listed)	$1,024.00
ETI17539	APS-3B-208/240	Control Panel, 208-240 VAC (UL Listed)	$1,024.00