166N12B

Overview

The Hammond Manufacturing 166N12B is a low voltage industrial control power transformer designed for chassis mounting. It features a single primary winding rated at 117 VAC and operates at frequencies of 50 Hz or 60 Hz. The secondary output provides 12 VAC with a center tap, delivering a maximum current of 4 A. The unit has a power rating of 48 VA and utilizes wire leads for termination. Constructed with a laminated core, it supports an operating temperature range from 0 C to +130 C.

Feature Summary

• Chassis mount design with wire lead terminations for direct integration into control panels
• Single primary and single secondary winding configuration for standard isolation applications
• Laminated core construction optimized for 50/60 Hz industrial power frequency operation

Applications

• Industrial control panel power supply units
• Machine tool electrical systems requiring isolated low voltage power
• Automation equipment control circuits
• General purpose industrial transformer enclosures

Procurement Notes

Verify the specific primary voltage rating against site requirements, as documentation indicates 117 VAC rather than the standard 115 VAC found in similar series models. Confirm that the 4 A secondary current capacity meets the load demands of the intended application circuit. Ensure chassis mounting provisions align with the enclosure design specifications prior to installation.

Selection Notes

Select this model when a 48 VA power rating and 12 VAC center-tapped output are required for industrial control applications. The 117 VAC primary input suits regions or systems utilizing this specific line voltage standard. Consider the physical dimensions and weight constraints associated with the chassis mount style and wire lead configuration during system layout planning.

Part Context

This component belongs to the Hammond 166 series of industrial control transformers. The series offers various power ratings and voltage configurations tailored for different industrial control needs. The 166N12B specifically addresses applications requiring moderate power delivery with a 12 VAC secondary output, fitting within the broader portfolio of chassis-mounted power solutions provided by the manufacturer.

Replacement Considerations

Direct substitutes within the same series include the 166C12 for lower power requirements and the 166LA12 for higher current capacity. Verify compatibility with existing wiring and mounting hardware when transitioning between these variants.