The ABB TK506, order code 3ABD00029650, is an RS485 isolator accessory for PLC systems. It provides a D-Sub to 5-pole terminal interface and is rated IP20.
Lifecycle & Sourcing Reality
For a BOM line or a repair needing this exact order code, procurement is handled as a quoted-to-order search through specialty industrial surplus channels. Submit an RFQ with your target quantity; lead times and pricing vary by lot and date code.
Integration Note
The TK506 sits between the CPU or communication module and the RS485 fieldbus segment. The D-Sub connector mates directly with the PLC's COM port; the terminal side strips to a 5-pole screw clamp for field wiring. IP20 rated for use inside a control cabinet. No additional isolation rating beyond the RS485 bus isolation is specified; confirm galvanic separation requirements against your field devices.