Square D CC46.6 Contactor Thermal Unit C Series

Product Description

The SQUARE D CC46.6 is a thermal unit accessory designed for use with C Series contactors. Thermal units provide overload protection by sensing heat buildup caused by excessive current draw through a motor circuit. When current exceeds the rated threshold, the thermal unit trips the overload relay, shutting down the load before damage occurs. This part is installed by licensed electricians and motor control technicians servicing industrial or commercial motor control centers, starter assemblies, or panel-mounted contactor configurations. At 0.07 pounds and compact dimensions, it is a direct-fit replacement component requiring no field modification.

The CC46.6 thermal unit is used in motor control applications where overload protection is required as part of a contactor assembly. It is specifically designed for C Series contactor and starter configurations. Typical install scenarios include HVAC equipment with motor-driven compressors or fans, pump panels, conveyor systems, and other three-phase or single-phase motor loads that require resettable overload protection. This unit is suited to both commercial and light industrial environments where SQUARE D C Series hardware is already installed.

Key Features

• Designed as a thermal overload unit for C Series contactors
• Provides motor overload protection by tripping on excess heat from overcurrent
• Compact form factor at 3.3 inches length, 2.3 inches width, and 0.8 inches height
• Lightweight at 0.07 pounds for easy handling during panel service
• Sold individually, allowing single-unit replacement without buying a kit

Compatibility

Designed for use with SQUARE D C Series contactors and starters as stated by the manufacturer.

Installation Notes

Installation should be performed by a qualified electrician in accordance with NEC guidelines. De-energize and lock out the panel or motor control center before removing or installing any thermal unit. Confirm the replacement thermal unit matches the required trip class and current rating for the motor being protected before reinstalling the overload assembly. Do not power up the circuit until the thermal unit is fully seated and the enclosure is secured.