166G7

Overview

The Hammond Manufacturing 166G7 is a low voltage industrial power transformer designed for chassis mounting. It features a single primary winding rated at 115 VAC and a secondary output of 7 VAC center-tapped configuration. The unit provides a power rating of 4.9 VA with a maximum secondary current capacity of 0.7 A. Operating within a frequency range of 50 Hz to 60 Hz, the transformer supports an ambient temperature range from 0°C to +130°C. Physical dimensions are approximately 60.45 mm in length, 35.05 mm in width, and 35.05 mm in height, weighing 181.437 g. Termination is achieved via wire leads.

Feature Summary

• Chassis mount design with wire lead termination for direct integration into control panels
• Single primary and single secondary winding construction for standard isolation applications
• Center-tapped secondary output suitable for full-wave rectification circuits

Applications

• Industrial control panel power supply units
• Low voltage signal processing circuitry
• Electronic equipment requiring isolated AC power sources

Procurement Notes

Verify the specific part number suffix against official Hammond Manufacturing documentation to ensure correct voltage and current ratings. Confirm that the wire lead type and chassis mounting style match the mechanical requirements of the target enclosure. Cross-reference the thermal class and insulation specifications with system safety standards before final procurement.

Selection Notes

Select this component when a compact, low-power transformer is required for 115 VAC input systems. The 4.9 VA rating limits its use to low-current applications. Ensure the chassis mounting footprint accommodates the specified dimensions. Consider the center-tapped output if dual polarity DC conversion is needed downstream.

Part Context

This model belongs to the Hammond 166 series of industrial power transformers. The series offers various power ratings and voltage configurations tailored for general industrial control environments. The 166G7 represents a lower power option within this lineup, sharing common mounting and termination characteristics with higher-rated siblings.

Replacement Considerations

Direct substitutes include other Hammond 166 series models with identical electrical parameters, such as the 166G8 or 166G6B, provided the power rating differences are acceptable. Verify physical compatibility and lead configuration before substitution.