These readings indicate the sensor or its wiring has failed and requires immediate attention to restore boiler operation

000 BTU rating is National Board certified to meet ASME Section IV requirements for hot water heating boilers

providing technicians with clear LED fault code indications for faster troubleshooting on the job site

Rated for up to 15 Amps at 210°F

Siemens Industrial Controls 3UB8523-5EW2 Relay 30067439-890 These readings indicate the sensorAs a seasoned technician, you know that safeguarding three phase motors requires more than just a basic breaker. The Siemens 3UB8523 5EW2 is a high performance ESP200 solid state overload relay engineered for precise protection in demanding industrial controls environments. This unit handles a wide 10 40 amp current rating, making it a versatile choice for a variety of motor sizes without needing multiple specialized parts. Its 3 phase operation and