Part identity and lifecycle status
The Siemens 6DR5215-.....-.... is a SIPART PS2 Smart electropneumatic positioner accepting a 4...20 mA (3/4-wire) input with HART communication, housed in a flameproof aluminum enclosure (Ex d) for single-acting pneumatic linear and part-turn actuators. This order code carries a lifecycle status of NRND (Not Recommended for New Designs), meaning Siemens has flagged it for eventual phase-out. New projects should evaluate the current SIPART PS2 portfolio for a suitable replacement; existing BOM lines can still be sourced through the authorized channel against an RFQ.
Sourcing and compliance considerations
Classified as Product class C — manufactured/produced to order, not a stocked off-the-shelf item. This aligns with the NRND status: each unit is built to order, which means lead time is quoted per request and the part cannot be returned or reused against credit. RoHS compliant since 31-12-16; REACH Article 33 duty-to-inform documentation is available per the current candidate list. No export control restrictions apply (AL: N / ECCN: N).
What the ratings mean for fit
The 4...20 mA HART input is standard for analog position feedback and remote configuration. The 3/4-wire capability allows separate power for the loop. The flameproof aluminum enclosure (Ex d) is sized for Zone 1 gas-group applications. Single-acting operation means the positioner drives one pneumatic output to a spring-return actuator — typical for fail-safe valve assemblies in process lines.