Description
The Johnson Controls Y65G13-0 is a dependable 40 VA control transformer engineered for HVAC and building automation applications where reliable, low-voltage power delivery is essential. Featuring a 24 V primary and 24 V secondary configuration, this transformer is purpose-built to power thermostats, control boards, zone panels, and a wide range of 24-volt HVAC control circuits.
Key Features
- 24 V primary voltage for compatibility with standard HVAC control wiring
- 24 V secondary output voltage for powering low-voltage control circuits
- 40 VA capacity to handle typical HVAC control loads with confidence
- Energy limiting type overload protection for inherent safety without the need for external fusing in many applications
- Male fittings with 8″ primary leads for straightforward line-voltage connections
- Male fitting with 30″ secondary leads for flexible routing to control boards and thermostats
Energy Limiting Overload Protection
The energy limiting design provides built-in protection against overload conditions, limiting output energy in the event of a fault. This feature simplifies installation by reducing the need for additional protective components while helping to meet relevant safety standards.
Pre-Wired Lead Connections
Factory-installed leads on both primary and secondary sides reduce installation time and minimize wiring errors. The 8″ primary leads allow easy connection to the line-voltage supply, while the generous 30″ secondary leads provide ample reach to control panels, thermostats, and zone boards without requiring extension wiring in most installations.
Typical Applications
- HVAC control circuit power supply
- Thermostat and zone control panel power
- Building automation system low-voltage power
- Replacement transformer for Johnson Controls control systems
Product Specifications
- SKU: Y65G13-0
- Brand: Johnson Controls
- Primary Voltage: 24 V
- Secondary Voltage: 24 V
- VA Capacity: 40 VA
- Overload Protection: Energy Limiting Type
- Primary Connections: Male Fittings with 8″ Leads
- Secondary Connections: Male Fitting with 30″ Leads







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