Carrier T111603027 Multi-Tap Control Transformer 120/277/380/575V Primary 24V Secondary 75VA

The Carrier T111603027 is an OEM multi-tap control circuit transformer designed for commercial HVAC applications. It steps down high line voltage to a safe 24V AC secondary output, powering the low-voltage control circuits found in Carrier air conditioners, heat pumps, rooftop units, and air handlers.

With four selectable primary voltage taps — 120V, 277V, 380V, and 575V — this transformer accommodates a wide range of commercial electrical supply configurations without the need for additional adapters or modifications. The 24V secondary output delivers a reliable 75 VA of capacity, making it well-suited for control circuits that power thermostats, zone valves, relays, contactors, and electronic control boards simultaneously.

Key Features:

• Multi-tap primary voltage: 120V / 277V / 380V / 575V
• Secondary voltage: 24V AC
• VA rating: 75 VA — ideal for higher-demand commercial control circuits
• OEM Carrier replacement part — direct fit with no modification required
• Suitable for Carrier commercial air conditioners, heat pumps, rooftop units, and air handlers
• Manufacturer Part Number (MPN): T111603027

The 75 VA rating provides ample capacity for control circuits driving multiple zone dampers, contactors, and electronic accessories. Replacing a failed transformer with the correct OEM part ensures proper voltage regulation and protects sensitive downstream control components.