Siemens Industrial Controls 3RU2136-4HB0 Relay Freon the QPA228x series is designed

the QPA228x series is designed specifically for Siemens TEC and PTEC controllers using the P1 communication protocol via an RJ-11 connection

and R-404A with a 650 PSI working pressure

While the terminal spacing on many HVAC compressors is standardized

Should I use a sealant or gasket maker with these seals

Siemens Industrial Controls 3RU2136-4HB0 Relay Freon the QPA228x series is designedThe Siemens Sirius 3RU2136 4HB0 is a high performance thermal overload relay engineered for precise motor protection in industrial environments. Designed for direct mounting on Sirius 3RT203 contactors (Size S2), this bimetallic relay handles a current setting range of 40 50 Amps. It features Class 10 tripping characteristics, ensuring reliable disconnection during overload or phase failure within 10 seconds or less under standard conditions. The