Schlegel Multi-Point Lock System has been discontinued. 

Replacement Lock Body only for Multi-Bolt Lock.
This is the Lock body only, NO extensions or other parts

Special Handle spacing: 2-5/8 inch ( 68mm);
Backset : 2-5/32 inch / 2.165 inch (55mm).
Lock body Measures 3-3/8 inches Deep 7-5/8 tall;

NOTE: 

some locks had a round connection on the slide bar and some were rectangular, they are NOT interchangeable.

The replacement has a round connection.

If you have the Rectangular one, this will not work 

The Round Connection lock is # 401155