🔌 Aprilaire 4010 Transformer - Reliable Power Supply for Optimal Performance Review

Transformer was a good buy and quick delivery was quick, sad for him was the April air conditioner contractor who came and rewired $$$$$.

Just what I need to power my Aprilaire Model 600 humidistat Easy installation, consistently measurable performance. Does exactly what it should.

This transformer is well suited for powering thermostats in situations where a C-wire is not present on the thermostat. You can mount it in a single switch box in the wall (must be metal); I made a clamp to hold it securely in the box. Then apply 110 VAC from a nearby outlet to the thermostat box on the primary side of the transformer; Apply 24 VAC from the secondary of the transformer to the thermostat (all wires inside the wall). Works like a champ.

Transformer was a good buy and fast delivery was quick, sad for him was the air control unit contractor in April who came and rewired $$$$$.

Just the thing for my Aprilaire Model 600 humidistat. Easy to install, consistently measurable performance. Does exactly what it should.

This transformer is well suited for powering thermostats in situations where a 'C' wire is not present at the thermostat location . You can mount it in a single switch box in the wall (must be metal); I made a clamp to hold it securely in the box. Then apply 110 VAC from a nearby outlet to the thermostat box on the primary side of the transformer; Apply 24 VAC from the secondary of the transformer to the thermostat (all wires inside the wall). Works like a champ.