The Siemens 6DR5223-.....-.... is a SIPART PS2 smart electropneumatic positioner accepting a 4-20 mA (3/4-wire) HART input, built for double-acting pneumatic linear and part-turn actuators. The aluminum enclosure carries Ex/nEx approvals, so it fits both hazardous and non-hazardous areas without a separate housing variant. This positioner is classified as Product class C — manufactured/produced to order, not a stocked returnable item. That means each unit is built against a customer order, which aligns with the NRND lifecycle status: the design is not recommended for new installations, but existing BOM lines can still be filled through the build-to-order channel.
The 6DR5223-.....-.... carries an NRND (Not Recommended for New Design) status. Siemens has not issued a formal discontinuation, but the part is no longer the preferred choice for new projects. For existing installed bases or BOM lines already frozen, the unit remains available through the build-to-order channel — each piece is manufactured per order, so lead time is order-driven rather than off-the-shelf. RoHS compliance is confirmed since 31-12-16. REACH Article 33 information is available per the current candidate list.
The 4-20 mA HART input means this positioner integrates directly into a standard analog loop with digital HART communication for configuration and diagnostics — no separate fieldbus gateway needed. The double-acting design drives both sides of a double-acting actuator, so it is the correct choice for spring-return actuators only if the application requires active force in both directions. The aluminum enclosure is lighter than stainless steel but suitable for most industrial environments; if washdown or corrosive atmospheres are the norm, verify that the enclosure rating matches the area classification.