Allen - Bradley 100 - FA40 is an auxiliary contact block. Here are its brief English parameters:
Series: 100F
Contact Configuration: 4 NO (Normally Open)
Number of Contacts: 4
Mounting Type: Front Mount
Terminal Type: Screw
Coil Voltage: 24V DC
Pole Number: 4
Contact Rated Voltage: 690V AC
Contact Rated Current: 10A
Minimum Switching: 17V 5mA (DIN 19240)
Compatible Contactors: Bulletin 100 - C and 100S - C contactors
Standards: CCC, CE, CUL, GOST, KC, UL