Siemens 505-4916A Industrial Relay Module DIN Rail

Siemens PPX:505-4916A is a 16-channel DIN-rail mounted relay output module for the TI 505 PLC system. It provides 16 Form A (normally open) relay contacts that switch external loads in the 24–230 VAC or 6–24 VDC range, enabling isolation between the controller and downstream devices. Each channel is rated for up to 2 A resistive loads, with 1 A maximum for inductive AC loads and 0.88 A for inductive DC loads. The module is single-wide and designed to mount on a TH 35 DIN rail, fitting standard TI 505 backplanes to expand the controller’s digital output capacity. Common applications include driving relays, solenoids, or indicators in industrial automation, where multiple outputs are required while keeping the control logic electrically isolated from the load circuits.