166L28-BULK

Overview

The Hammond Manufacturing 166L28-BULK is a laminated core industrial power transformer designed for chassis mounting. It features dual primary windings supporting 115 VAC and 230 VAC input configurations, ensuring compatibility with various regional power standards. The unit delivers a total power rating of 56 VA with a center-tapped secondary output of 28 VAC at 2 A. Alternatively, the secondary can be configured to provide 14 VAC at 4 A. The device operates within a frequency range of 50 Hz to 60 Hz and functions reliably in ambient temperatures between 0°C and +130°C.

Feature Summary

• Dual primary winding configuration allows flexible connection to either 115 VAC or 230 VAC supply lines.
• Center-tapped secondary design enables versatile voltage selection between 28 VAC and 14 VAC outputs.
• Robust chassis mount construction utilizes horizontal channel brackets for secure installation.
• High thermal tolerance supports continuous operation in elevated temperature environments up to 130°C.

Applications

• Industrial control panel power supplies
• Equipment requiring isolated low-voltage AC sources
• Chassis-mounted electronic enclosures

Procurement Notes

Verify that the specific bulk packaging variant matches the required electrical specifications, as standard retail units may differ in lead wire length or terminal configuration. Confirm that the dual primary winding requirement aligns with the target facility's available voltage infrastructure before finalizing the order. Ensure mechanical dimensions are compatible with the designated chassis space.

Selection Notes

Select this model when a 56 VA capacity is necessary for applications demanding both 28 VAC and 14 VAC options from a single transformer. The dual primary feature makes it suitable for global deployment where input voltages vary between 115 VAC and 230 VAC. Consider the physical dimensions and weight constraints if space is limited within the equipment enclosure.

Part Context

This component belongs to the Hammond 166 series of industrial power transformers, which are characterized by their laminated core construction and chassis-mount form factor. The series provides reliable isolation and voltage transformation for heavy-duty industrial applications. The 166L28 specifically addresses needs for higher current outputs compared to lower-rated variants in the same family.

Replacement Considerations

Direct substitutes include the 166L28 non-bulk version for identical electrical performance in standard packaging. Other Hammond models within the 166 series may offer similar ratings but require verification of winding configurations and physical dimensions to ensure interchangeability.

FAQ

Can the 166L28-BULK operate on 230 VAC input?

Yes, the transformer features dual primary windings that allow it to be connected to either 115 VAC or 230 VAC supply lines.

What is the maximum operating temperature for this transformer?

The maximum operating temperature is +130°C, allowing for use in high-heat industrial environments.