What it is and where it fits
The 7ME3960-0WD50 is a stainless steel mounting kit for the SITRANS FS220 ultrasonic flowmeter family. It holds a pair of high-precision size "C" sensors in a dual-enclosure arrangement — one enclosure per sensor — with a spacer bar that sets the correct separation between them. This is not the sensor or the transmitter; it is the mechanical interface that positions the transducers on the pipe. The mounting strap for the enclosure is not included, so verify you have the right strapping hardware for your pipe diameter before the install crew shows up on site.
Lifecycle and compliance — the sourcing reality
Product class C means this is manufactured or produced to order. It is not a stocked shelf item; it ships against a confirmed order. Plan your lead time accordingly — this is not a same-day ship part from a distributor bin. Important compliance flag: this product is not RoHS-compliant. If your project requires RoHS exemption documentation for the end customer, flag it during the RFQ stage. REACH candidate-list information is available per Article 33 if your compliance team needs it.
What the group and product codes tell you
Group Code R3P3 and Product Group 4727 are Siemens internal classification codes. They help cross-reference this mounting kit against other SITRANS FS220 accessories in a BOM or spares list, but they do not affect fit or function.
Integration note for the install team
Dual-enclosure design means two separate housings for the sensor pair — one for the upstream transducer, one for the downstream. The spacer bar locks in the axial distance between them, which is critical for the ultrasonic path length and therefore the flowmeter's accuracy. No field adjustment of the gap; the bar sets it. The stainless steel construction handles washdown and corrosive environments typical of water/wastewater or chemical metering installations. No IP rating is stated on this mechanical accessory, but the material choice is compatible with the sensor enclosures it mounts to.