The small HA3/4 inserts are used whenever space is limited. The HA Series 10 - 48 inserts now have shortened ground straps. These inserts are unique because the wire cross section can still be up to 2.5 mm HA3 - 48 screw terminated inserts fit into HA Series Housings. Amodified HBE 48 Housing can fit 64 contacts.
The HA Series Housings are compact in shape and utilize fixed levers.