AC1040

Current Sense Transformers Overview

The Talema Group LLC AC1040 is a low-cost current transformer designed for 50/60Hz applications. It features a primary current rating of 40A and a secondary output ratio of 1000:1. The device has a DC resistance of 49.3 Ohms and an accuracy class of C (25.4mm). Physical dimensions are 1.374 inches in length by 0.563 inches in width, with a height of 34.9mm. It utilizes a through-hole mounting type and is manufactured under ISO-9001:2000 and TS-16949:2002 standards.

Current Sense Transformers Feature Summary

• High-volume production design for economical pricing
• Standard 1000:1 turns ratio for consistent signal scaling
• Through-hole mounting configuration for PCB integration

Current Sense Transformers Applications

• AC current sensing at 50/60Hz frequencies
• Primary current monitoring up to 40A
• Industrial power supply magnetics

Current Sense Transformers Procurement Notes

Verify the specific manufacturer datasheet for complete electrical characteristics and thermal limits before integration. Confirm that the through-hole footprint matches the target PCB layout dimensions. Ensure the operating frequency aligns with the 50/60Hz specification to maintain accuracy within the defined class. Check for any updated manufacturing certifications or material compliance requirements relevant to the final assembly environment.

Current Sense Transformers Selection Notes

Select this component when a standard 1000:1 ratio is required for 40A primary current measurement. The through-hole package suits designs where surface area is available but soldering automation is not prioritized. Consider the physical size constraints relative to the 1.374-inch length. This model is appropriate for general-purpose AC current monitoring rather than high-frequency switching applications.

Current Sense Transformers Part Context

The AC1040 belongs to the Talema AC Series, which offers low-cost current transformers with primary ratings ranging from 5A to 200A. These components are part of a broader catalog including toroidal transformers and custom magnetic solutions. The series emphasizes competitive pricing through high-volume manufacturing processes while maintaining quality standards.

Current Sense Transformers Replacement Considerations

Consult the official Talema Group catalog for direct substitutes within the AC series, such as models with different primary current ratings like the AC1025 or AC1060. Verify that any alternative maintains the 1000:1 turns ratio and compatible physical dimensions for the existing mounting structure.