The EWTS 72 has been designed specifically to be used as defrost timer in refrigeration systems.

• Housing: plastic made of PC+ABS resin, with auto-extinguishing degree V0
• Size: front panel 74x32 mm, depth 67 mm
• Mounting: flush with bracket (supplied) into a hole measuring 71x29 mm
• Protection: front panel IP65; on request, a snap-on cover can be supplied to provide additional protection of the rear terminal block
• Connections: screw terminal blocks for wires max 2,5 mm2 (only one wire in per terminal in compliance with VDE regulations)
• Commands: 2 trimmers on the side for defrost end temperature and fan delay, and 1 dip-switch to select the defrost interval
• Display: leds on front panel
• Defrost interval: from 2 to 30 hours with 2-hour increments
• Defrost management: NTC probe
• Defrost end temperature: adjustable from 3…15 °C
• Forced defrost interruption: after 1/2 an hour or 1 hour (depending on the model)
• Defrost output: exchange relay 8(3)A 250V AC
• Fan startup delay: adjustable from 1 to 8 minutes
• Fans output: N.O. relay 8(3)A 250V AC
• Consumption: 1 VA max
• Power supply: 12 Vac/dc, 50/60 Hz