CT-1200-F15

Overview

The CT-1200-F15 is a current sense transformer manufactured by Littelfuse Inc. It features a 1200:5 turns ratio and is designed for monitoring high-current AC circuits without direct electrical contact. The component includes a 1.5-inch window aperture to accommodate primary conductors. It operates with an industrial voltage rating of 120V and supports secondary current ranges from 2A to 20A. The device utilizes a 0.150-7s configuration, ensuring reliable performance in motor protection and diagnostic applications.

Feature Summary

• Provides non-contact monitoring of high-current AC circuits
• Features a 1.5-inch window for primary conductor accommodation
• Delivers accurate current sensing via a 1200:5 transformation ratio
• Supports industrial motor protection and diagnostic functions

Applications

• Motor overload protection systems
• Current monitoring in high-power AC circuits
• Industrial motor control panels
• Equipment requiring phase loss detection

Procurement Notes

Verify the specific ordering suffix and package configuration against the official Littelfuse datasheet to ensure compatibility with existing circuit designs. Confirm that the 1.5-inch window dimension matches the physical constraints of the primary conductor. Check RoHS compliance status if required by project specifications. Ensure the secondary output requirements align with the connected measurement or protection devices before finalizing procurement orders.

Selection Notes

Select this component when a high-ratio current transformer is needed for large gauge conductors. The 1200:5 ratio suits applications where primary currents are significantly higher than standard sensing levels. Consider the 1.5-inch window size as a critical mechanical constraint. Evaluate the 120V rating against system voltage requirements. This model is appropriate for industrial environments requiring robust motor protection capabilities.

Part Context

The CT-1200-F15 belongs to the Littelfuse CT Series of current transformers. This series provides various ratios and window sizes for different current monitoring needs. The CT-1200-F15 specifically addresses high-current applications with its 1200:5 ratio. It complements other models in the lineup that offer smaller windows or different ratios for lower current ranges.

Replacement Considerations

Consult the Littelfuse CT Series catalog for alternative part numbers with similar ratios or window sizes. Verify that any substitute maintains the 1200:5 ratio and 1.5-inch window specification. Cross-reference electrical ratings and mounting configurations to ensure functional equivalence in the target application.