Siemens SIMATIC S7-300, FRONT CONNECTOR,40 PIN

Accessory variant: Front connector
For use with: SIMATIC S7-300 SM 331 Analog Input Module

S7-300 front panel connector. Enables quick and easy connection to the PLC and expansion modules. 20-pin (for CPU models 312 except 32-channel types) and 40-pin connectors can be coded to fit specific module types and prevent incorrect connections. The retention mechanism prevents accidental disconnection of the connectors.