Functional Devices TR20VA004 Transformer 318172-701 Cracking is typically caused by

Cracking is typically caused by over-torquing during installation or extreme localized heat due to delayed ignition

For direct fired applications

Common Questions What are the rotation and shaft specifications for this motor

making it suitable for large-scale boiler equipment

making them compatible with most standard control circuits and motor starters

Functional Devices TR20VA004 Transformer 318172-701 Cracking is typically caused byThe Functional Devices TR20VA004 is a versatile 20VA control transformer designed for reliable power conversion in building automation and HVAC systems. Built with split bobbin construction, this unit effectively steps down high line voltage to a consistent 24Vac secondary voltage for powering thermostats, relays, and sensors. The multi tap primary accommodates 120 208 240 277Vac, providing technicians with a single part solution for diverse project