The additional heater prevents the water in the trough from freezing at low temperatures. It can be installed in the trough. Suitable for Mod. 6523 and Mod. 6543. 24 V / 180 W output, therefore frost-proof in the valve range down to -30° C.
Auxiliary heater:
- Additional heater for mod. 520, 600 and 620 - 2 pieces required for mod. 520/620!
- 24 V / 80 W
All temperature specifications regarding frost resistance refer to use in stables without direct wind and weather influence!