This unit features two split-bobbin transformers that step down 120 Vac to 24 Vac

SPDT Versatility: Single Pole Double Throw contacts allow for both Normally Open and Normally Closed wiring configurations

These HVAC zone valve fittings are essential for contractors performing maintenance or new installations where a mechanical flare-to-sweat transition is required to maintain system integrity

To adjust within the current 2 - 4

York S1-3500-378P Jumper Bar 323269-701 This unit features two split-bobbinThe York S1 3500 378P Jumper Bar is a critical electrical component engineered for high amperage power distribution within York commercial and industrial HVAC systems. This 4 pole jumper bar is rated for a 100A capacity, providing a secure, low resistance connection between circuit breakers or terminal blocks. As a Genuine OEM York replacement part, it ensures precise fitment and maintains the electrical integrity of the original equipment