Square D A13.2 Contactor Thermal Unit

Product Description

The SQUARE D A13.2 is a replacement thermal unit designed for use with compatible contactor assemblies in motor control and industrial electrical systems. Thermal units serve as the overload protection element inside a motor starter or contactor, sensing excess current through heat deflection and tripping the overload relay to protect the motor from damage. This unit is installed by licensed electricians and industrial maintenance technicians working on motor control circuits in commercial and light industrial applications. At 0.04 pounds, it is a compact, single-piece component measuring 2.5 inches in length, 1.2 inches in width, and 0.8 inches in height.

The A13.2 thermal unit is suited for replacement service in overload relay assemblies where the original thermal element has worn, tripped permanently, or been damaged. It is commonly used in motor starter panels, HVAC compressor control circuits, pump control panels, and conveyor or fan motor applications where reliable overload protection is required. Installation is performed as part of scheduled maintenance or after an overload event that has damaged the existing thermal unit.

Key Features

• Replacement thermal unit for contactor overload relay assemblies
• Compact form factor: 2.5 inches long, 1.2 inches wide, 0.8 inches tall
• Lightweight at 0.04 pounds for easy handling in panel work
• Single-piece package quantity supports one-for-one replacement service
• Designed as a contactor accessory for motor overload protection circuits

Compatibility

Designed as an OEM-style replacement thermal unit for compatible SQUARE D contactor and motor starter overload relay assemblies. Verify the specific heater table and overload relay model requirements before installation to confirm correct fitment.

Installation Notes

Installation should be performed by a qualified electrician in accordance with NFPA 70 (NEC) requirements. Disconnect and lock out all power to the motor control panel before removing or installing any thermal unit. Confirm the replacement thermal unit matches the required heater code for the motor full-load amperage and application before inserting it into the overload relay. Do not energize the circuit until the overload assembly is fully reassembled and the panel enclosure is secured.