RELAY; MODIFIER: DIGITAL MONITORING; MANUFACTURER NAME: SIEMENS; PART NUMBER: 3UG4632-1AW30; EQUIPMENT OF WHICH PART: VARIABLE FREQUENCY DRIVE; EQUIPMENT MANUFACTURER: SIEMENS; EQUIPMENT MODEL: SINAMATIC SM150; EQUIPMENT SERIAL NUMBER: NO INFORMATION; ADDITIONAL FEATURES: VOLTAGE, 22.5MM FROM 10 TO 600VAC DC OVERPULSE AND UNDERPULSE 24 TO 240V AC DC 50 TO 60HZ DC AND AC NOISE PULSE DELAY 0.1 TO 20 S HYSTERESIS.