Functional Devices TR100VA004 Transformer, 480/277/240/120V Primary, 24V Secondary, 96VA

The Functional Devices TR100VA004 is a robust 96VA control transformer engineered for commercial and industrial HVAC applications where reliable, low-voltage power is essential. With a multi-tap primary voltage configuration, this transformer adapts to a wide range of electrical supply systems, making it an exceptionally versatile solution for new installations and retrofits alike.

Primary & Secondary Voltage

The TR100VA004 accepts four selectable primary input voltages — 480Vac, 277Vac, 240Vac, and 120Vac — and steps them down to a stable 24Vac secondary output. This multi-tap design eliminates the need for multiple transformer SKUs across different job sites, simplifying inventory and installation.

Built-In Circuit Breaker Over-Current Protection

An integrated circuit breaker provides reliable over-current protection for both the transformer and the connected control circuit. Unlike fuse-based designs, the resettable circuit breaker minimizes downtime and eliminates the need to carry replacement fuses in the field.

Flexible Mounting Options

The TR100VA004 features both foot mount and dual threaded hub mount configurations, giving installers the flexibility to secure the transformer to a variety of enclosures, panels, and surfaces without additional hardware or adapters.

Key Specifications

• SKU: TR100VA004
• Brand: Functional Devices
• VA Rating: 96VA
• Primary Voltage: 480 / 277 / 240 / 120Vac (multi-tap)
• Secondary Voltage: 24Vac
• Over-Current Protection: Integrated resettable circuit breaker
• Mounting: Foot mount and dual threaded hub mount

Ideal Applications

• Commercial HVAC control circuits
• Building automation systems
• Industrial control panels
• Retrofit and new-construction electrical installations