266N12B

Power Transformers Overview

The Hammond Manufacturing 266N12B is an industrial power transformer designed for chassis mounting. It features a dual primary winding configuration supporting 115 VAC and 230 VAC input voltages, ensuring compatibility with standard global power frequencies of 50 Hz and 60 Hz. The unit provides a total power rating of 48 VA. The secondary output offers a center-tapped 12 VAC configuration, capable of delivering 4 A at the full voltage or 8 A when utilizing the half-winding at 6 V. The component utilizes wire leads for electrical termination and operates within a temperature range of 0 C to +130 C.

Power Transformers Feature Summary

• Dual primary winding design enables flexible connection to both 115 VAC and 230 VAC supply lines.
• Center-tapped secondary output allows for variable voltage selection between 12 VAC and 6 VAC configurations.
• Chassis mount construction facilitates secure installation within industrial control enclosures.

Power Transformers Applications

• Industrial control panel power distribution
• Equipment requiring isolated low-voltage AC power sources
• Chassis-mounted electronic system integration

Power Transformers Procurement Notes

Verify that the required input voltage matches the dual primary specification of 115 VAC or 230 VAC. Confirm that the mechanical dimensions of 102.36 mm length, 56.13 mm width, and 66.54 mm height fit the designated chassis space. Ensure the load current does not exceed the rated 4 A at 12 VAC or 8 A at 6 VAC to maintain safe operating temperatures within the specified +130 C limit.

Power Transformers Selection Notes

Select this model when a robust 48 VA isolation transformer is needed for heavy-duty industrial applications. The dual secondary winding capability provides flexibility for different voltage requirements without changing hardware. Consider the physical size and weight of 1.134 kg during mechanical design. This series is suitable for environments where high thermal stability and reliable chassis mounting are critical for long-term operation.

Power Transformers Part Context

This component belongs to the Hammond 266 series of industrial control transformers. The series is characterized by standardized chassis mounting footprints and dual primary winding architectures. These units are engineered for durability in demanding electrical environments, offering consistent performance across various industrial sectors requiring stable low-voltage AC power conversion.

Power Transformers Replacement Considerations

Consult official Hammond Manufacturing documentation for direct cross-reference part numbers. Verify that any substitute maintains identical 48 VA power ratings, 12 VAC CT secondary specifications, and compatible chassis mounting dimensions to ensure functional equivalence.