12.8-25

Overview

The Signal Transformer 12.8-25 is a laminated core power transformer designed for industrial rectifier applications, rated at 320VA. It features a dual primary winding supporting multiple input voltages and a center-tapped secondary configuration. The unit provides a parallel output of 6.4V at 50A or a series output of 12.8V at 25A. Constructed with a chassis mount design, it utilizes terminal block connections for secure integration into high-power systems requiring reliable voltage transformation.

Feature Summary

• Laminated core construction optimized for industrial rectifier power applications
• Dual multi-tap primary windings accommodating various international line voltages
• Center-tapped secondary winding enabling flexible parallel or series output configurations
• Chassis mount installation style with terminal block termination for robust connectivity

Applications

• Industrial rectifier power supplies
• High-current DC power conversion systems
• Heavy-duty equipment requiring stable low-voltage AC inputs
• Manufacturing machinery power distribution units

Procurement Notes

Verify the specific datasheet version to confirm exact primary voltage tap options and physical mounting hole dimensions. Ensure the required output current aligns with either the parallel 50A or series 25A rating. Confirm compliance with relevant safety standards such as UL or CE if applicable to your region. Check for any recent product change notifications regarding manufacturing relocation or component updates before finalizing orders.

Selection Notes

Select this model when a 320VA capacity is required for rectifier circuits. Choose the parallel 6.4V configuration for higher current demands up to 50A. Opt for the series 12.8V setup if lower current but higher voltage is needed, capped at 25A. Ensure the enclosure allows for chassis mounting and that the terminal block interface matches existing wiring harnesses. Validate that the operating temperature range meets system environmental requirements.

Part Context

This component belongs to the DL Series of conventional rectifier power transformers manufactured by Signal Transformer. The series is characterized by laminated core designs intended for demanding industrial environments. The 12.8-25 variant specifically addresses applications needing precise center-tapped secondary outputs for full-wave or bridge rectification setups in heavy industrial power systems.

Replacement Considerations

Direct substitutes include other models within the Signal Transformer DL series offering similar VA ratings and secondary configurations. Verify that alternative parts match the physical footprint and terminal block spacing. Cross-reference primary voltage ranges to ensure compatibility with existing power sources. Ensure replacement units maintain equivalent isolation voltage and thermal performance characteristics.