A29.5 – Square D Thermal Unit Type S Type A Melting Alloy Class 20 Motor Control Overload Relay

A29.5

A29.5 is a Square D thermal unit designed for motor control applications, providing reliable overload protection.

This thermal unit features a melting alloy design and is classified as Class 20, suitable for protecting motors, controllers, and branch circuit conductors from excessive heating due to prolonged motor overcurrents. It supports a maximum voltage of 600V and is available in NEMA sizes 00 through 7. The unit offers simple catalog numbering for easy ordering and was discontinued as of June 30, 2020, with no direct replacement available.

• Manufacturer: Square D
• Type: Thermal Unit, Type S, Type A
• Overload Relay Design: Melting Alloy
• Class: 20
• Voltage Rating: Up to 600V
• NEMA Sizes: 00 to 7
• Application: Motor Control Overload Protection
• Discontinued: June 30, 2020

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Specifications

• Part Number: A29.5
• Manufacturer : Square D
• Brand : Square D
• Category : Motor Control
• Item Subcategory : Heater Element
• Voltage : 600
• Amperage : 4000
• Phase : 3
• Poles : 3
• AIC rating : 100kA@480V
• Connection : Draw-Out
• Functions : LI – Long-Time and Instantaneous
• Full Load Amp Minimum : 18.5
• Full Load Amp Maximum : 20.5
• Protection : Solid State

Product Data

• Weight : 5.19