Identifying differences in two part numbers
IEC contactors and starters
Products sold and used in the United States
Determining which part number to order
They both have 2 normally open (N.O.) and 2 normally closed (N.C.) contacts.
The sequence and numbering are different
LADN22 from left to right read : N.O. 53 and 54; N.C. 61 and 62; N.C. 71 and 72; N.O. 83 AND 84.
LADN22G from left to right read : N.C. 31 and 32; N.C. 41 and 42; N.O. 53 and 54; N.O. 63 and 64.