650
×
![]()
Discontinued - Replaced By: 654
Part of the Snow Melting Controls Series
Ordering Code: 650
UPC: 779655065001
650 Snow Melting Control
The Snow Melting Control 650 is designed to operate mechanical equipment to melt snow off of an outdoor slab. It can be used for any single zone electric or hydronic snow melting application that requires manual start/stop operation. This control uses Pulse Width Modulation (PWM) and slab Outdoor Temperature Reset to maintain slab temperature. It is capable of controlling a pump, valve, or electrical contact while reading outdoor air temperature.
Features
- Slab outdoor reset
- Temporary Idle
- Manual override
- Warm weather shut down
| Specifications | |
|---|---|
| Agency Approvals | CSA C US, meets class B: ICES & FCC Part 15 |
| Ambient Conditions | Indoor use only, -20 to 120 degree F (-30 to 50 degree C), RH less than or equal to 90 percent non-condensing |
| Control Type | Microprocessor control, this is not a safety (limit) control |
| Dimensions | 4-3/4" H x 2-7/8" W x 7/8" D (120 x 74 x 22 mm) |
| Enclosure Material | White PVC plastic |
| Enclosure NEMA Rating | NEMA 1 |
| Power Supply | 24 V (ac) plus / minus 10 percent, 50/60 Hz, 3 VA, 24 V (dc) plus / minus 10 percent, 0.03 A |
| Relay | 240 V (ac) 10 A, 1/3 hp |
| Sensor | NTC thermistor, 10 k ohms at 77 degree F (25 degree Cplus / minus 0.2 degree C) Beta =3892 |