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Product Detailed Parameters
- Description：CURR SENSE XFMR 100:1 5A IN-LINE
- Series：ZSCT
- Mfr：Littelfuse Inc.
- Package：Bulk
- Frequency Range：50Hz ~ 400Hz
- Type：Non-Invasive (Solid Core)
- Inductance：-
- ET (Volt-Time)：-
- Current Ratio：05:00.1
- DC Resistance (DCR)：-
- Ratings：-
- Mounting Type：Free Hanging (In-Line)
- Size / Dimension：5.725" L x 5.421" W (145.42mm x 137.69mm)
- Height - Seated (Max)：5.280" (134.12mm)
- Termination Style：Wire Leads
- Turns Ratio - Primary:Secondary：100:01:00
- Current Rating (Amps)：5:00 AM
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Overview
The Littelfuse ZSCT5-88 is a non-invasive solid core current transformer designed for detecting low levels of earth-leakage current. It operates within a frequency range of 50Hz to 400Hz and features a primary current rating of 5 A with a current ratio of 100:1 (secondary output of 0.05 A). The unit utilizes a flux-free conductor design and requires mounting via M6 or 1/4-inch screws.
Feature Summary
- Non-invasive solid core construction for direct wire passage
- Flux-free conductor design for accurate leakage detection
- Compatible with Littelfuse relays for ground fault monitoring
Applications
- Ground Fault Circuit Interrupter (GFCI) systems
- Earth-leakage current detection circuits
- Industrial relay protection interfaces
Procurement Notes
Verify the specific ordering suffix against the official Littelfuse datasheet to ensure correct secondary output and insulation ratings. Confirm that the required mounting hardware matches the specified M6 or 1/4-inch screw dimensions. Cross-reference the frequency range requirements with your system's operational spectrum to ensure compatibility with the 50Hz to 400Hz specification.
Selection Notes
Select this component when integrating with Littelfuse relays for sensitive earth-leakage monitoring. Ensure the primary conductor fits within the 88mm aperture. Validate that the 5A primary rating aligns with the circuit's maximum expected load. Consider the non-invasive nature for retrofitting existing wiring without breaking the circuit loop.
Part Context
This part belongs to the ZSCT series of current transformers manufactured by Littelfuse. The series is specifically engineered to interface with Littelfuse relays, providing precise detection of low-level earth-leakage currents in electrical distribution and protection systems.
Replacement Considerations
Consult the official Littelfuse replacement guide for verified substitute part numbers. Generic current transformers may not match the specific relay interface requirements or calibration standards of the ZSCT series.
