166M18

Overview

The Hammond Manufacturing 166M18 is a laminated core power transformer designed for chassis mounting. It features a single primary winding rated for 115 VAC input and a single secondary winding providing 18 VAC at 3 A output, resulting in a 54 VA power rating. The unit utilizes wire leads for termination and operates within a temperature range of 0°C to +130°C at 50/60 Hz. Its physical dimensions are approximately 93.73 mm in length, 54.10 mm in width, and 58.67 mm in height, with an isolation voltage of 2000 Vrms.

Feature Summary

• Chassis mount design with wire lead terminations
• Laminated core construction for industrial control applications
• Dual primary winding capability for 115V or 230VAC operation
• High thermal stability with maximum operating temperature of +130°C

Applications

• Industrial control panels requiring low voltage AC power
• Equipment needing isolated power supplies for control circuits
• Chassis-mounted systems utilizing filament or low voltage loads

Procurement Notes

Verify the specific primary voltage configuration required for your application, as the datasheet indicates dual primary winding options for 115V and 230VAC inputs. Confirm that the chassis mounting style and wire lead termination method align with your assembly requirements. Ensure the ambient operating environment remains within the specified 0°C to +130°C range to maintain performance and safety standards.

Selection Notes

Select this component when a robust, chassis-mountable transformer is needed for industrial environments. The 54 VA rating supports moderate current loads, while the 18 VAC secondary provides suitable voltage for various control circuits. Consider the physical dimensions and weight constraints of the enclosure, as the unit weighs approximately 907 grams. Verify compatibility with existing wiring harnesses due to the wire lead termination style.

Part Context

This transformer belongs to the Hammond 166 series, which offers various power ratings and voltage configurations for industrial use. The series is characterized by its durable construction and suitability for chassis mounting in control panels. The 166M18 specifically addresses applications requiring 54 VA of power with an 18 VAC output, fitting into the broader portfolio of low-voltage power solutions provided by the manufacturer.

Replacement Considerations

Direct substitutes may include other Hammond 166 series models with similar VA ratings, such as the 166J18 (18 VA) or 166G16 (8 VA), though these have lower power capacities. Cross-brand replacements must match the 54 VA rating, 18 VAC secondary, chassis mount style, and dimensional constraints. Always verify electrical specifications and physical fit before substitution.