166F12D

Overview

The Hammond Manufacturing 166F12D is a low voltage industrial power transformer designed for chassis mounting. It features a single primary winding rated for 117VAC at 50/60 Hz and a single secondary winding providing 12VAC. The unit has a power rating of 4.2 VA with a secondary current capacity of 0.35A. Physical dimensions are 60.45 mm in length, 35.05 mm in width, and 35.56 mm in height. It utilizes wire leads for termination and operates within a temperature range of 0°C to +130°C.

Feature Summary

• Chassis mount design for secure industrial installation
• Single primary and single secondary winding configuration
• Low voltage output suitable for control circuits
• Wire lead termination for flexible wiring

Applications

• Industrial control panels
• Automation equipment power supplies
• Low voltage circuit powering
• Electronic device enclosures

Procurement Notes

Verify the specific voltage rating requirements against the datasheet, as some sources list 115V while others specify 117V. Confirm that the 4.2 VA power rating and 0.35A current capacity meet the load demands of the target application. Ensure the chassis mounting style and wire lead termination are compatible with the assembly design before ordering.

Selection Notes

Select this model when a compact, low-voltage transformer is required for chassis mounting in industrial environments. It is suitable for applications needing 12VAC from a 117VAC source with moderate current demands. Consider the physical dimensions and operating temperature range to ensure compatibility with the enclosure space and thermal conditions.

Part Context

The 166F12D belongs to the Hammond 166 series of industrial power transformers. This series is characterized by robust construction and reliable performance in demanding environments. The component serves as a critical interface for stepping down line voltage to safer, usable levels for electronic controls and instrumentation within industrial automation systems.

Replacement Considerations

The 166GD12 is listed in related documentation as a higher power variant (8.4 VA) within the same series. Direct substitutes with identical electrical specifications should be verified through official Hammond Manufacturing catalogs or authorized distributors to ensure compatibility.