The European (DIN) type comes in two sub-variants: one with a ceramic terminal base for direct wiring, and one with flying leads, which is required when a head-mounted transmitter such as the SITRANS TH320 or TH420 is installed. The American (ANSI) type uses a spring-loaded nipple design that presses the sensor tip firmly against the bottom of the thermowell for reliable thermal contact. Both types are mineral-insulated and fit into SITRANS TS500 connection heads.

Yes—that is their primary purpose. SITRANS TSinserts are designed as exchangeable measuring inserts for the SITRANS TS500 series. You can replace a worn or failed insert without removing the thermowell from the process to significantly reduce maintenance downtime. Simply match the tip diameter, insertion length and sensor type to your existing configuration. Use article number 7MC701 in the Siemens PIA Life Cycle Portal for online configuration and exact specification.

SITRANS TSinserts offer a comprehensive range of explosion protection certifications. For European and IECEx markets, options include intrinsic safety Ex ia (Zone 0/1), non-sparking Ex ec (Zone 2) and compatibility with flameproof enclosures Ex d. For North American markets, FM and CSA approvals are available, including flameproof and non-sparking variants. You can also order the assembly with a SIL 2/3 functional safety certificate for safety-instrumented systems when combined with the SITRANS TH320 or TH420 transmitter.