"Industrial" series - Sockets Model with 3 to 7 contacts of 1.6 mm diameter in a size 1 housing, and 12 contacts in a size 2 housing in nickel-plated aluminium alloy.
Quick click locking system (1//6 of a turn).
The contacts can be taken apart and may also be crimped (pliers M 22520-1//01 and M 22520-1//02) or soldered to the connecting wires.
Tool ref. 5774 540 06 (stock no. 285-5161) is indispensable for fitting and removal of contacts. The square socket of the "industrial" series is available in male or female versions.