Home > Products > APS–3B Snow Switch® Control Panel

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° to 58°C).

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