CTMB8003

Overview

The CTMB8003 is a current transformer mounting base manufactured by Hoffman Enclosures, Inc. It is constructed from galvanized steel and designed for three-phase applications with current ratings between 400 and 800 amperes. The unit features an electrically isolated mount and termination platform. Pre-punched mounting holes align with studs in compatible CT enclosures. It supports conductor provisions via mechanical lugs or 1/2-inch bolt-on connections spaced on 1-3/4 inch centers.

Feature Summary

• Galvanized steel construction for durability
• Electrically isolated mount and termination platform
• Pre-punched holes for alignment with CT enclosure studs

Applications

• Current transformer cabinets
• Three-phase power distribution systems
• Electrical metering installations

Procurement Notes

Verify compatibility with specific CT enclosure models before purchase. Confirm that the 400-800A rating meets project requirements. Ensure the galvanized finish suits the environmental conditions. Check that the 1-3/4 inch stud center spacing matches existing infrastructure. Validate UL 414 approval status if required by local codes.

Selection Notes

Select this base when installing current transformers in the 400 to 800 ampere range. It is suitable for environments requiring galvanized steel protection. Choose this component if pre-aligned mounting holes are necessary for assembly efficiency. Consider it for setups requiring electrical isolation at the termination point.

Part Context

This part belongs to the A90CM series of rack accessories. It is specifically engineered for use with Hoffman current transformer enclosures. The design facilitates secure mounting of conductors within industrial electrical panels. It serves as a critical interface between the enclosure structure and internal wiring components.

Replacement Considerations

No direct public substitute part numbers are confirmed for this specific model.