ELCT30-88

Overview

The Littelfuse ELCT30-88 is an industrial current transformer designed for earth-leakage detection applications. It features a 600:1 turns ratio and supports frequencies between 50 Hz and 400 Hz. The device has a rated voltage of 600 V and accommodates conductors up to 30 A. Key physical specifications include an 88 mm inside diameter, a height of 145.42 mm, and a window size of 3.46 inches. It incorporates an integrated flux conditioner to enhance sensitivity for low-level leakage currents.

Feature Summary

• Integrated flux conditioner for enhanced sensitivity
• Designed for use with Littelfuse relays
• Free-hanging in-line mounting configuration

Applications

• Earth-leakage detection systems
• Industrial current monitoring
• Protection relay interfacing

Procurement Notes

Verify the specific model suffix against official Littelfuse documentation to ensure compatibility with required relay interfaces. Confirm that the 600:1 ratio and 88 mm aperture meet system design constraints. Cross-reference datasheet electrical ratings with operational frequency ranges to prevent performance deviations in high-frequency environments.

Selection Notes

Select this component when precise earth-leakage detection is required using Littelfuse relay infrastructure. Ensure the primary conductor fits within the 88 mm window. Validate that the 600 V rating aligns with the circuit's maximum operating voltage. Consider the 50–400 Hz frequency range suitability for the target power system.

Part Context

This unit belongs to the ELCT series of sensitive current transformers manufactured by Littelfuse Inc. The series is engineered specifically for detecting low-level earth-leakage currents. These devices are typically paired with dedicated protection relays to provide reliable fault detection in industrial electrical networks.

Replacement Considerations

Consult Littelfuse official substitution guides for compatible ELCT series variants. Verify that alternative models maintain identical 600:1 ratios and 88 mm apertures. Ensure flux conditioner integration remains consistent for equivalent sensitivity performance.