Allen - Bradley 100-MCA00 is a mechanical interlock for 100 - C series contactors. Here are its brief parameters in English:
Type: Mechanical Interlock
Manufacturer: Allen - Bradley / Rockwell
Used with: 100 - C series contactors
Certifications: CCC, CUL, KC, UL
Weight: 0.0600 lb (or 50 gm)
UPC: 662072613160 (12 - digit)