166L28

Overview

The Hammond Manufacturing 166L28 is a low voltage industrial power transformer with a 56 VA rating. It features dual primary windings supporting 115 VAC and 230 VAC inputs at 50/60 Hz. The secondary output provides 28 VAC center-tapped configuration with a 2 A current rating, or alternatively 14 VAC at 4 A. Designed for chassis mounting, the unit measures 63.5 mm in length and width, with a height of 77.72 mm. It utilizes wire leads for termination and operates within a temperature range of 0°C to +130°C.

Feature Summary

• Dual primary winding design enables flexible operation across 115 VAC and 230 VAC input voltages.
• Center-tapped secondary architecture supports multiple voltage configurations for diverse load requirements.
• Robust chassis mount construction ensures stable installation in industrial control environments.

Applications

• Industrial control panel power supply
• Low voltage equipment powering
• Chassis mounted electronic systems

Procurement Notes

Verify that the specific order matches the 166L28 part number to ensure correct electrical specifications. Confirm input voltage requirements align with the dual primary winding capability. Check physical dimensions against available chassis space. Ensure wire lead termination methods are compatible with the installation design. Review datasheet for thermal management requirements under full load conditions.

Selection Notes

Select this model when a 56 VA capacity is required for chassis-mounted applications. Choose based on the need for dual primary flexibility between 115 VAC and 230 VAC sources. Consider the 28 VAC center-tapped output for rectified DC supplies. Evaluate the wire lead termination style against PCB or terminal block constraints. Compare physical footprint against alternative transformers if space is limited.

Part Context

This component belongs to the Hammond 166 series of industrial power transformers. The series offers various power ratings and voltage configurations for general-purpose industrial use. The 166L28 specifically addresses needs for moderate power levels with versatile input options. It complements other models like the 166F28 and 166L10 which offer different power and voltage characteristics.

Replacement Considerations

Direct substitutes include the 266L28, which shares similar electrical ratings but differs in physical dimensions and series classification. Verify compatibility before swapping, as mounting hole patterns and case sizes may vary between the 166 and 266 series models.