166G2

Overview

The Hammond Manufacturing 166G2 is a laminated core industrial control transformer designed for chassis mounting. It features a single primary winding rated at 115 VAC and a single secondary winding providing 2.5 VAC center-tapped output with a current rating of 500 mA. The unit has a power rating of 1.25 VA and operates within a frequency range of 50 Hz to 60 Hz. Physical dimensions are approximately 47.63 mm in length, 38.1 mm in width, and 25.4 mm in height. It utilizes wire lead termination and supports an operating temperature range from 0°C to +130°C.

Feature Summary

• Laminated core construction for efficient low-voltage power conversion
• Single primary and single secondary winding configuration
• Chassis mount installation style with wire lead terminations
• High thermal stability supporting operation up to +130°C

Applications

• Industrial control panel power supplies
• Low voltage circuit powering in machinery
• Electronic equipment requiring isolated AC power
• Control systems utilizing 2.5V logic or signaling

Procurement Notes

Verify the specific secondary voltage requirement (2.5V vs other variants) against system schematics before ordering. Confirm chassis mounting clearance matches the physical dimensions provided in the datasheet. Ensure input voltage aligns with the 115V primary rating. Check for RoHS compliance documentation if required by project specifications. Validate that wire lead lengths meet connection requirements.

Selection Notes

Select this model when a compact, low-power transformer is needed for chassis-mounted applications. The 1.25 VA rating suits small control circuits rather than high-load devices. Consider the 130°C temperature rating for environments with elevated heat. Compare physical size constraints against alternative models in the 166 series. Verify that the center-tapped secondary configuration matches the rectification or filtering design.

Part Context

The 166G2 belongs to the Hammond 166 series of industrial control transformers. This series is characterized by laminated core designs and chassis mounting options. Other models in the series vary primarily in power rating and secondary voltage outputs while maintaining similar form factors and termination styles. The series targets general industrial automation and control panel integration.

Replacement Considerations

Direct substitutes within the same series include models like 166G6B or 166J6 if higher power or different voltages are acceptable. Cross-brand replacements require matching VA rating, voltage ratios, and physical footprint. Verify that any alternative component maintains the same insulation class and temperature rating.