464321 is part of the Bel Fuse Series of power relays. The relays provide a range of switchable current ratings from 0.5A to 2A and a switching frequency of up to 200Hz. The series is designed for low voltage applications and provides contact protection for long life reliability. The four poles of the 464321 are gold plated for improved ESD protection. Additionally, it has a zero-cross trigger mode that provide superior EMI/RFI protection. The 464321 has a wide operating temperature range and can tolerate extreme temperature changes. A wide array of optional accessories can also be used to provide even more features, such as LED monitoring, indicating, and activity status.