Cutler-Hammer HTM-10 Current Rating Module 1D89108G10

The Cutler-Hammer HTM-10 Current Rating Module (Style No. 1D89108G10) is a plug-in component designed for use with Digitrip trip units in circuit breakers, allowing users to set and adjust the current rating for protection against overloads and short circuits. This module is part of the legacy Cutler-Hammer product line, now under Eaton, and is commonly used in industrial and commercial electrical systems to customize breaker performance. Key features include easy installation via plug-in pins, compatibility with specific breaker frames, and reliable current sensing for enhanced safety and equipment protection. Advantages over similar products include robust construction for durability in harsh environments, precise rating adjustments to prevent nuisance tripping, and seamless integration with existing Cutler-Hammer/Eaton systems. Drawbacks may include limited availability due to its legacy status, potential need for compatibility checks with modern breakers, and higher costs for refurbished units. Applications span power distribution panels, motor control centers, and heavy machinery setups where adjustable current protection is critical. This unit appears used based on image analysis, showing minor wear but intact functionality. Overall, it offers cost-effective upgrades for older systems compared to full breaker replacements.