CR8349-2500-N

Overview

The CR8349-2500-N is a current sense transformer from the CR8300 series by CR Magnetics Inc., designed for through-hole mounting. It features a non-invasive solid core construction with PC pin termination. The component has a nominal current rating of 75 A and a current ratio of 2500:1. Its frequency range spans from 20Hz to 1kHz, with a DC resistance (DCR) of 190 Ohms. Physical dimensions are 1.024 inches in length, 0.670 inches in width, and a maximum height of 1.102 inches.

Feature Summary

• Revenue grade performance utilizing a nickel alloy core for linear response
• Non-invasive solid core design for direct conductor insertion
• Through-hole mounting with PC pin termination

Applications

• Revenue-grade energy metering systems
• Industrial power monitoring applications
• High-isolation current sensing circuits

Procurement Notes

Verify the specific suffix '-N' indicates the revenue-grade nickel alloy core variant, distinct from standard models. Confirm that the 75A rating aligns with continuous operational requirements rather than peak limits. Ensure PCB layout accommodates the specified through-hole dimensions and pin spacing. Check RoHS compliance status if required by local regulations.

Selection Notes

Select this model when high linearity and accuracy are critical for billing or precise measurement. The 2500:1 ratio suits applications requiring significant signal attenuation before amplification. Consider the 190 Ohm DCR impact on secondary circuit loading. Verify that the 20Hz lower frequency limit meets the lowest expected operating frequency.

Part Context

Part of the CR8300 series, which includes variants like CR8349-1000-N. This series focuses on precision current sensing with robust isolation capabilities. The manufacturer emphasizes long-term reliability in industrial environments, supported by UL certification for safety standards.

Replacement Considerations

CR8349-1000-N offers a different current ratio and rating. Other series members may lack the nickel alloy core for revenue-grade accuracy. Direct substitutes require matching the 2500:1 ratio and 75A rating.