Johnson Controls Y63F22-0 Transformer

The Johnson Controls Y63F22-0 is a heavy-duty Class 2 control transformer engineered for high-demand industrial and commercial HVACR applications. This 50 VA transformer is purpose-built to step down 277/480V primary electrical service to a stable 24V secondary output, providing reliable power for digital controllers, gas ignition systems, and motor actuators. Designed with a split-bobbin configuration, it ensures superior isolation between primary and secondary circuits, minimizing the risk of electrical interference in sensitive control loops. The integrated built-in circuit breaker provides essential overload protection, allowing for a quick manual reset and reducing downtime during service calls.

Installation is streamlined via the 4" x 4" mounting plate and end bell hole design, making it a direct fit for standard junction boxes. The unit includes 8-inch color-coded lead wires for rapid termination in complex control cabinets. Meeting UL 1585 and CSA standards, the Y63F22-0 is a technician-preferred solution for maintaining HVAC control system integrity in high-voltage environments.

• Enhanced Protection: The manual reset circuit breaker prevents transformer burnout during field shorts or overcurrent events.
• Superior Isolation: Split-bobbin design delivers high dielectric strength and optimizes primary-to-secondary circuit separation.
• Voltage Versatility: Dual-tap 277V/480V input allows for standardized stocking across multiple commercial job sites.
• Rugged Mounting: Pre-installed 4" x 4" plate ensures a secure, vibration-resistant fit in industrial air handlers and chillers.

Can the Y63F22-0 be used for residential 120V systems?
No, this specific model is designed for 277V or 480V primary inputs. For 120V applications, use a Y65 series multi-tap transformer.

What happens if the secondary circuit exceeds 50 VA?
The integrated circuit breaker will trip to protect the internal windings. Once the fault is cleared, the technician can reset the breaker manually.

Is this transformer suitable for powering smart thermostats?
Yes, its 24V AC output and 50 VA capacity are ideal for HVACR control components, including modern thermostats and relays.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.