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Product Detailed Parameters
- Description：PWR XFMR LAMINATED 14VA CHAS MT
- Series：166
- Mfr：Hammond Manufacturing
- Package：Bulk
- Type：Laminated Core
- Voltage - Primary：115V
- Voltage - Secondary (Full Load)：28V
- Current - Output (Max)：500mA
- Primary Winding(s)：Single
- Secondary Winding(s)：Single
- Center Tap：Yes
- Power - Max：14VA
- Mounting Type：Chassis Mount
- Termination Style：Wire Leads
- Size / Dimension：71.37mm L x 41.40mm W
- Height - Seated (Max)：42.93mm
- Voltage - Isolation：2000Vrms
- Weight：0.7 lb (317.51 g)
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Overview
The Hammond Manufacturing 166G28 is a low voltage power transformer designed for chassis mounting. It features a single primary winding rated at 115 VAC and a dual secondary winding configuration providing 28 VAC center-tapped output. The unit has a power rating of 14 VA with a secondary current capacity of 500 mA. Physical dimensions are 71.37 mm in length, 38.1 mm in width, and 42.93 mm in height. It utilizes wire leads for termination and operates within a temperature range of 0°C to +130°C at frequencies of 50 Hz or 60 Hz.
Feature Summary
- Chassis mount construction with wire lead terminations
- Single primary winding with dual secondary center-tapped output
- Low voltage design suitable for industrial control applications
Applications
- Industrial control panels
- Equipment requiring isolated low voltage power
- Chassis-mounted electronic assemblies
Procurement Notes
Verify the specific datasheet version and physical terminal configuration before integration. Confirm that the chassis mounting holes align with your enclosure design. Ensure the operating frequency matches your system requirements, as the component supports both 50 Hz and 60 Hz operations. Check for any regional compliance certifications required for your target market.
Selection Notes
Select this model when a 14 VA rating and 28 VAC center-tapped output are required for chassis installation. Compare against the 166F28 if lower power (7 VA) is sufficient, or the 161G28 if PCB mounting is preferred instead of chassis mounting. Consider the 166G16 if a 16 VAC output is needed rather than 28 VAC. Evaluate thermal management needs given the +130°C maximum operating temperature.
Part Context
This component belongs to the Hammond 166 series of industrial control transformers. These units are characterized by laminated core construction and robust chassis-mount designs intended for general-purpose power conversion in industrial environments. The series offers various voltage and wattage combinations to suit different control circuit requirements.
Replacement Considerations
Hammond 166F28: Lower power rating (7 VA vs 14 VA). Hammond 166G16: Different secondary voltage (16 VAC CT vs 28 VAC CT). Hammond 161G28: Different mounting style (PCB mount vs Chassis mount).
