Manufacturer: Ziehl
Type: Voltage Monitor 
Model: STW 1000 V2

Supply Voltage: 24 … 240 V AC/DC
Measurement Input: 20 mA, 10 V
Response-Delay: 0.1… 10 s
Contact Configuration: 1 Changeover (CO)
Rated Operational Voltage: 250 V AC
Contact Current: 2 A
Operating Temperature: -20 … 55 °C
Degree of protection: IP20
Dimensions: 90 X 35 X 58 mm