meeting rigorous ASTMB Standard #483 protocols for durability and corrosion resistance

This centrifugal blower assembly includes the housing and wheel

What oil is pre-charged in this model

venting should be piped to a safe outdoor location according to local mechanical codes rather than using a limit device

Key Benefits Precise Thermal Protection: Automatically opens at 175

Siemens Building Technology 141-0530 Thermostat 319825-402 meeting rigorous ASTMB Standard #483The Siemens Building Technology 141 0530 is a heavy duty high limit manual reset thermostat designed for critical "lock out" safety applications in commercial HVACR systems. Built for professional duct or surface mounting, this line voltage mechanical thermostat provides an essential safety layer by interrupting the circuit when temperatures exceed the setpoint. It features a broad operating temperature range from 25 to 215 degrees Fahrenheit ( 4 to