... 24V-660V, On-off time:100ms. SSR(1 or 3 phase Solid State Relay)1, Features: Imported electrical parts,high ... proof,reliable quality,long work life.2, Sorting: Single/3-phase Solid State Relay,DC/AC Solid State Relay,medium/high ... Relay Temperature/Humidity Controller Current/Voltage/Power meter,various sensor indicator Frequency / Tacho / Batch / Length /Linespeed Meter Flow / Level /Pressure ...