DAR72475FU is a UL-approved, normally open high-voltage relay from the DA(UL) series designed for high-reliability applications requiring excellent isolation. This relay features 7.5 kV isolation across contacts with rhodium contact material, providing low contact resistance of 50 mO (typical 15 mO) and a maximum switching voltage of 1000 V DC or AC peak with a maximum switching current of 3 A. The relay operates with a 24 V DC coil, requiring a must-operate voltage of 20 V and a must-release voltage of 4 V, with operate and release times of 3.0 ms and 2.0 ms respectively when a diode is fitted. The PCB-mounted configuration with flying lead HV connection and UL approval makes it suitable for cardiac defibrillators, test equipment, and high-voltage power supplies where high isolation voltages and reliability are critical requirements.