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Product Detailed Parameters
- Description：PWR XFMR LAMINATED 12.6VA CHAS
- Series：166
- Mfr：Hammond Manufacturing
- Package：Bulk
- Type：Laminated Core
- Voltage - Primary：117V
- Voltage - Secondary (Full Load)：12.6V
- Current - Output (Max)：1A
- Primary Winding(s)：Single
- Secondary Winding(s)：Single
- Center Tap：Yes
- Power - Max：12.6VA
- Mounting Type：Chassis Mount
- Termination Style：Wire Leads
- Size / Dimension：82.55mm L x 44.45mm W
- Height - Seated (Max)：50.80mm
- Voltage - Isolation：2000Vrms
- Weight：0.4 lb (181.44 g)
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Overview
The Hammond Manufacturing 166J12B is an industrial power transformer designed for low voltage applications. It features a single primary winding rated at 117 VAC and a single secondary winding providing 12.6 VAC center-tapped output. The unit has a power rating of 12.6 VA with a secondary current capacity of 1 A. Designed for chassis mounting, it utilizes wire leads for termination. The transformer supports operation at 50 Hz or 60 Hz frequencies and operates within a temperature range of 0°C to +130°C.
Feature Summary
- Provides isolated low voltage step-down conversion from standard line voltage
- Features a center-tapped secondary winding configuration for rectifier circuits
- Constructed for durable chassis mounting in industrial control environments
Applications
- Industrial control panel power supplies
- Electronic equipment requiring isolated low voltage DC sources
- Rectifier circuit input stages
Procurement Notes
Verify the specific model suffix against official Hammond Manufacturing documentation to confirm electrical ratings and physical dimensions. Ensure the primary voltage rating matches the local supply frequency and voltage standards. Confirm that the chassis mounting style and wire lead termination are compatible with the target enclosure design before procurement.
Selection Notes
Select this component when a 12.6 VA isolation transformer with a center-tapped secondary is required. Consider the physical dimensions and weight constraints for the installation space. Evaluate the thermal performance requirements against the specified operating temperature range to ensure reliable long-term operation in the intended environment.
Part Context
This part belongs to the Hammond 166 series of industrial control transformers. These units are characterized by robust construction suitable for demanding industrial settings. The series offers various voltage and wattage combinations to accommodate different control system power needs while maintaining safety isolation standards.
Replacement Considerations
The 166J12 is a closely related variant within the same series. Verify if the 115V primary rating of the 166J12 is acceptable as a substitute for the 117V rating of the 166J12B. Confirm identical secondary specifications and physical mounting compatibility before substitution.
