VPM18-1390

Power Transformers Overview

The Triad Magnetics VPM18-1390 is a medical-grade toroidal power transformer rated at 25 VA. It features dual primary windings supporting 100, 120, 220, and 240 VAC inputs. The secondary provides an 18.0VCT output at 1.39A or 9VAC at 2.78A. Designed for chassis mounting with wire leads, it offers 4kV dielectric isolation. The unit measures 60 mm in height and weighs 2.5 kg.

Power Transformers Feature Summary

• Toroidal construction reduces stray magnetic fields and improves efficiency compared to standard EI transformers.
• Medical grade certification ensures compliance with safety standards for healthcare environments.
• Provides 4kV dielectric isolation between primary and secondary windings for enhanced safety.

Power Transformers Applications

• Medical equipment power supplies
• Industrial control systems requiring low-voltage step-down
• Chassis-mounted electronic assemblies

Power Transformers Procurement Notes

Verify that the specific application requires medical-grade certification and 4kV isolation. Confirm input voltage compatibility with the dual primary winding configuration. Ensure chassis mounting space accommodates the 60 mm height and 2.5 kg weight. Check lead termination requirements against the wire lead specification.

Power Transformers Selection Notes

Select this model when medical safety standards are mandatory and compact size is preferred over EI cores. Choose if the system requires 18VCT or 9VAC outputs at specified currents. Consider the toroidal design benefits for noise-sensitive applications. Verify that chassis mounting is feasible for the enclosure design.

Power Transformers Part Context

This component belongs to the Triad Magnetics VPM series of industrial control transformers. The series includes various ratings within the 25 VA category. The VPM18-1390 specifically targets medical applications with its certified insulation and toroidal form factor.

Power Transformers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer catalogs for direct equivalents within the VPM series.