166L12

Power Transformers Overview

The Hammond Manufacturing 166L12 is a low voltage industrial control transformer designed for chassis mounting. It features a single primary winding rated at 115 VAC and operates at 50 Hz or 60 Hz frequencies. The secondary output provides 12.6 VAC center-tapped configuration with a current rating of 2.5 A. With a power capacity of 31.5 VA, this component utilizes wire leads for electrical connections. The unit measures 3.25 inches in length, 2.00 inches in width, and 2.00 inches in height, weighing approximately 453.592 grams. It supports an operating temperature range from 0°C to +130°C.

Power Transformers Feature Summary

• Provides isolated low voltage AC power conversion for industrial control circuits
• Features a laminated core construction optimized for filament and rectifier applications
• Designed for secure chassis mounting with integrated wire lead termination

Power Transformers Applications

• Industrial control panel power supplies
• Filament heating circuits for vacuum tubes
• Rectifier input stage transformers

Power Transformers Procurement Notes

Verify the specific part number suffix against official Hammond Manufacturing documentation to ensure correct voltage and current ratings. Confirm that the chassis mounting dimensions and wire lead lengths match your enclosure requirements. Check RoHS compliance status if environmental regulations apply to your assembly. Ensure the primary voltage matches your local mains frequency and amplitude specifications before integration.

Power Transformers Selection Notes

Select this model when a 31.5 VA capacity is required for 115V primary systems. The 12.6V center-tapped secondary suits applications needing dual polarity or full-wave rectification. Consider the physical footprint constraints as the unit requires specific chassis cutouts. Verify thermal management needs given the maximum operating temperature limit of 130°C for enclosed environments.

Power Transformers Part Context

This component belongs to the Hammond 166 series of industrial control transformers. The series offers various power ratings and secondary voltage configurations tailored for different control panel needs. The 166L12 specifically addresses higher current demands compared to lower-rated siblings in the lineup, providing robust performance for continuous duty cycles in manufacturing and automation equipment.

Power Transformers Replacement Considerations

No direct public substitute part numbers are confirmed for this specific model. Cross-reference dimensional drawings and electrical parameters carefully when evaluating alternative brands. Ensure any replacement maintains the same 115V primary and 12.6V CT secondary specifications to preserve circuit functionality.