High-temperature 200-degree fixed cut-out protects heat exchangers from cracking due to airflow restrictions

Is the linkage suitable for outdoor installations

This genuine OEM replacement part provides a high-integrity

Always cross-reference your model number with the manufacturer's parts list

Weil McLain 383-500-300 Sensor High-temperature 200-degree fixed cut-out protectsThe Weil McLain 383 500 300 is an OEM spec Return Supply Water Sensor designed for precision temperature regulation within hydronic systems. Engineers and technicians primarily utilize this 12k ohm NTC thermistor kit for Weil McLain Ultra Series boilers, specifically supporting Ultra Gas Boiler models such as the Ultra 310 and Ultra 80 (Series 1 & 2). By delivering real time data to the U Control module, it allows the unit to modulate firing rates