166B18

Overview

The Hammond Manufacturing 166B18 is a low voltage industrial power transformer designed for chassis mounting. It features a single primary winding rated at 115 VAC and operates at frequencies of 50 Hz or 60 Hz. The unit has a power rating of 0.54 VA with a center-tapped secondary output providing 9/18 VAC. The secondary current ratings are specified as 0.06 A on the full winding and 0.03 A on each half-winding. It utilizes wire leads for termination and functions within an operating temperature range of 0°C to +130°C.

Feature Summary

• Provides isolated low voltage AC power conversion from standard mains input
• Features a center-tapped secondary configuration for dual voltage outputs
• Constructed for durable chassis mounting in industrial control environments

Applications

• Industrial control panel power supplies
• Low voltage instrumentation circuits
• Electronic equipment requiring isolated AC sources

Procurement Notes

Verify that the required secondary voltage matches the 9/18 VAC center-tapped specification. Confirm that the application current does not exceed 0.06 A. Ensure the enclosure allows for chassis mounting and wire lead access. Check compatibility with 115 VAC input systems.

Selection Notes

Select this model when a compact, low-power transformer is needed for 115 VAC systems. It is suitable for applications requiring precise low voltage levels without high current demands. Consider the thermal limits if operating near maximum ambient temperatures.

Part Context

This component belongs to the Hammond 166 series of industrial control transformers. The series offers various voltage and wattage combinations tailored for different control circuit requirements while maintaining consistent physical dimensions and mounting styles.

Replacement Considerations

Direct substitutes include other Hammond 166 series models with identical electrical ratings. Verify that any replacement maintains the same center-tapped secondary configuration and chassis mounting footprint.