Siemens Industrial Controls 3RU2136-4GB0 Relay 321142-301 What Rooftop Units (RTU) are

What Rooftop Units (RTU) are compatible with this bearing

For technicians servicing residential HVAC blower wheels

This ensures the unit maintains optimal setpoints while preventing common issues such as evaporator coil freezing or inefficient compressor cycling

ensuring linear flow characteristics from 10% to 100% capacity

ensuring optimal arcing and steady airflow across the 1000 CFM system

Siemens Industrial Controls 3RU2136-4GB0 Relay 321142-301 What Rooftop Units (RTU) areThe Siemens 3RU2136 4GB0 is a high performance thermal overload relay engineered for heavy duty motor protection within HVACR and industrial control systems. Designed specifically for SIRIUS size S2 applications, this unit provides precise monitoring for motors with a current rating between 36 and 45 Amps. The Class 10 tripping characteristic ensures reliable downtime prevention by responding to overcurrent and phase failure conditions before