“A post from a Russian Telegram account that says a Ukrainian HARM missile was used on a Russian Pantsir-S1 air defense system recently. They claim the crew was ok but the radar was knocked out.”
https://twitter.com/RALee85/status/1558546639744368640
“Completely shredded modern and valuable 🇷🇺 T-80BVM in Ternova, Kharkiv region. “
https://twitter.com/Poutsup/status/1558813250678136833
The HARM is designed to damage or destroy the radar antenna. The warhead weighs 66kg and is blast/fragmentation. The fuse is laser proximity.
My guess is the fuse detonates at 100 to 150 ft AGL spreading frag pellets covering a 100 ft diameter circle. The frag pellets are the "kill" mechanism, not the HE.
From the link above:
Using 57E6 missiles, the Pantsir-S1 can engage tactical aircraft at a maximum range of 20 km and altitude of 10 km
HARM is a fire & forget missile and can be launched long before the Pantsir-S1 can engage the launch aircraft.