DP-241-7-20L

Overview

The DP-241-7-20L is a laminated core power transformer from the Two-4-One series by Signal Transformer. It features dual primary windings rated for 115V and 230VAC operation at 50/60 Hz. The secondary output provides 20VCT at 2.8A, delivering a maximum power of 56VA. Designed for chassis mounting with wire leads, it offers 2500Vrms isolation voltage. The unit measures 82.60mm in length, 44.30mm in width, and up to 49.80mm in height, weighing approximately 499 grams.

Feature Summary

• Dual primary winding configuration supports flexible input voltage selection between 115V and 230VAC.
• Center-tapped secondary design enables versatile rectification circuits requiring split-phase outputs.
• Chassis mount construction with wire leads ensures secure mechanical integration into industrial enclosures.

Applications

• Industrial machinery control systems
• Power transmission and distribution equipment
• General electrical equipment power supplies

Procurement Notes

Verify that the specific order matches the DP-241-7-20L designation to ensure correct secondary voltage and current ratings. Confirm chassis mounting requirements align with available clearance dimensions. Check RoHS compliance status if environmental regulations apply to the final assembly. Ensure input voltage specifications match the target application's power source frequency and amplitude.

Selection Notes

Choose this model when a 56VA capacity is required for applications needing a 20V center-tapped output. The dual primary feature simplifies inventory management for global deployments requiring different input voltages. Consider the physical dimensions and weight constraints during mechanical design. Verify that the 2500Vrms isolation rating meets safety standards for the intended electrical environment.

Part Context

This component belongs to the Two-4-One series of laminated core transformers manufactured by Signal Transformer. The series provides standardized power solutions for various industrial needs. The DP-241-7-20L specifically addresses requirements for moderate power levels with center-tapped secondary configurations. It represents a standard off-the-shelf solution within the manufacturer's broader portfolio of power magnetics.

Replacement Considerations

Direct substitutes include other DP-241-7 variants with identical electrical characteristics but different casing or lead styles. Cross-reference part numbers such as DP-241-7-56L for similar power ratings. Always verify pinout compatibility and mounting hole patterns before swapping components in existing designs.

FAQ

What is the isolation voltage rating?

The transformer provides an isolation voltage of 2500Vrms between primary and secondary windings.

Does the secondary winding have a center tap?

Yes, the secondary output is specified as 20VCT, indicating a center-tapped configuration.

What is the maximum power rating?

The maximum power rating is 56VA under full load conditions.