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Always verify your specific model's revision and fan diameter before installation
To prevent premature winding failure or overheating
Its compact design and UL 2043 compliance make it suitable for air plenum use
replacing the entire standing pilot assembly is often more cost-effective than troubleshooting individual burner ports
United Electric B402-120 Temp Switch 321142-301 Always verify your specific model'sThe United Electric B402 120 is a heavy duty dual switch temperature control designed for industrial process monitoring and threshold protection. Part of the 400 Series, this immersion stem temperature switch features two SPDT snap acting switches that can be independently adjusted across the 0F to 225F range, allowing for versatile dual stage control such as high low limit alarms or simultaneous alarm and shutdown functions. Built for demanding