CT50A

Overview

The Hammond Manufacturing CT50A is a toroidal current transformer designed for chassis mounting within the CT series. It features a primary current rating of 50 A and a secondary current rating of 5 A, establishing a turns ratio of 50:5. The unit has a power rating of 2 VA and supports a maximum primary voltage of 600 V. Physical dimensions include a height of 3.75 inches, length of 4.25 inches, and width of 1.75 inches. The device utilizes wire leads for termination.

Feature Summary

• Toroidal core design for efficient magnetic coupling
• Chassis mount configuration for secure installation
• Supplied with insulated secondary leads terminated with crimped ring connectors

Applications

• Industrial current monitoring systems
• Electrical panel metering circuits
• Power distribution protection schemes

Procurement Notes

Verify that the required secondary lead length matches the standard 24-inch specification provided with the unit. Confirm that the load impedance connected to the secondary terminals does not exceed the 2 VA power rating to ensure accurate transformation. Ensure the mounting surface accommodates the chassis mount style and physical footprint of 4.25 by 1.75 inches. Check that the system voltage remains within the 600 V primary limit.

Selection Notes

Select this model when a 50:5 ratio is required for low-current industrial applications. Consider the 2 VA burden capacity against the connected metering or relay loads. The toroidal shape allows the primary conductor to pass directly through the center, simplifying wiring compared to split-core alternatives. Verify compatibility with existing chassis mounting hardware before finalizing the component choice.

Part Context

The CT50A belongs to the Hammond CT series of industrial current transformers. This series provides toroidal designs suitable for various current ratings. The CT50A specifically addresses applications requiring measurement of currents up to 50 A. It shares the same chassis mount form factor and wire lead termination style as other models in the series, such as the CT100A and CT300A.

Replacement Considerations

Direct substitutes within the same series include the CT300A, CT400A, and CT500A if higher current ratings are acceptable. For lower current needs, verify availability of similar toroidal units from the manufacturer. Ensure any replacement maintains the 50:5 ratio and 2 VA rating to preserve circuit accuracy.