Phoenix Contact 2900451 A standard 6.2 mm PLC basic terminal block is available for use in input functions and features push-in connections without the need for relays or solid-state relays. The unit is designed to be mounted on DIN rail NS 35/7.5, allowing for easy installation and configuration. Additionally, it offers sensor supply voltage distribution (BB) and includes a single N/O contact point for handling input voltages of up to 120 V AC or DC.