VTX-146-500-250

Overview

The VTX-146-500-250 is a 500 VA open-style toroidal transformer manufactured by Vigortronix. It features dual primary windings configured for parallel connection at 115V or series connection at 230V input voltages. The secondary output provides two independent 50V windings, which can be connected in series to yield a total of 100V. The unit supports a maximum current of 5A and is designed for chassis mounting applications.

Feature Summary

• Dual primary winding configuration supporting both 115V parallel and 230V series electrical connections
• Open-style toroidal core construction optimized for efficient magnetic flux linkage
• UL approval indicating compliance with specific safety standards for electrical components

Applications

• Chassis-mounted power supply systems requiring high reliability
• Audio equipment power stages demanding low electromagnetic interference
• Industrial control units utilizing toroidal isolation transformers

Procurement Notes

Verify the specific voltage configuration required for your application before ordering. Confirm whether the installation environment necessitates an open-style design versus an encapsulated variant. Ensure that the chassis mounting provisions align with the physical dimensions of the target enclosure. Cross-reference the 500 VA rating against the peak load requirements to prevent thermal overload during operation.

Selection Notes

Select this model when a robust 500 VA capacity is necessary for stable voltage regulation. The dual primary design offers flexibility for international voltage standards without requiring separate part numbers. Consider the open style for applications where heat dissipation is critical and physical space allows for unenclosed mounting. Evaluate the 100V series secondary option if higher voltage outputs are preferred over lower current configurations.

Part Context

This component belongs to the Vigortronix VTX series of toroidal transformers, known for their compact form factor and high efficiency. The VTX-146-500-250 specifically addresses the need for substantial power handling in a relatively small footprint. It serves as a foundational element in power distribution networks where isolation and voltage transformation are paramount for system integrity.

Replacement Considerations

Direct substitutes include other 500 VA toroidal transformers with matching 2x50V secondary specifications. Verify that alternative models support the same dual primary wiring options for 115V/230V compatibility. Ensure that the replacement maintains the UL certification status if regulatory compliance is mandatory for the end product.