Also known as Haft-Hohlladung Luftwaffe.
Length: 270/273mm, diameter: 140/145mm. Weight: 3000 to 3600gram
Filling 1020gram Fp02-Hexogen 50/50. Brennzünder 7.5seconds (yellow head)
The grenade could penetrate armour up to 130mm.
It seems that two types have existed, a 3kilo and a 3.3kilo model. I have no further info on that.
First tests with the Haft-H (L) by the Luftwaffe were in 1942.
Apparently a 4kilo version Panzerhandmine 4 was also developed.
Four magnets and penetration up to 150mm.