Resideo Honeywell R8239D1007 Fan Center/Relay Transformer, DPST, 120V

Resideo Honeywell R8239D1007 Fan Center/Relay Transformer, Double Pole, Single Throw, 120V. Includes NEMA standard transformer (R8222D) for excellent voltage control. Provide low voltage control of line voltage fan motors and auxiliary circuits in heating, cooling or heating-cooling circuits.

Features:
NEMA standard Type D transformer (included) powers 24Vac control systems.
Provides overload protection for transformer.
Convenient connections for thermostat and heating and cooling equipment wiring.
Mounts on standard 4 x 4 junction box.
Can be mounted in any indoor location without additional enclosure.
Relay is easily replaced without disturbing wiring.
Includes relay enclosure.