Robertshaw 620-402 Transformer and Intertherm heating systems

and Intertherm heating systems

non-polychlorinated biphenyl design meets modern safety and regulatory codes

and is suitable for both Type PB413 and PB417 configurations

the internal windings or thermal fuse have likely failed

or if the furnace is frequently tripping its thermal limit due to restricted inducer airflow

Robertshaw 620-402 Transformer and Intertherm heating systemsThe Robertshaw 620 402 Transformer is a heavy duty 48VA multi tap electrical component engineered for maximum installation flexibility in commercial and residential HVACR environments. This multi voltage control transformer handles primary inputs of 120V, 208V, or 240V AC at 50 60 Hz, making it a versatile service truck staple. Technicians frequently utilize this unit as a 48VA HVAC transformer replacement due to its secondary output versatility,