Square D AL2820 Adjustable Roller Lever Limit Switch

Product Description

The SQUARE D AL2820 is an adjustable roller lever accessory designed for use with compatible limit switches. The lever arm extends 7.6 inches in overall length and features a steel roller, providing durable, repeatable actuation under industrial service conditions. This actuator accessory mounts to the limit switch body and allows field adjustment of the roller position to suit varying trip-point requirements. It is installed by electricians and industrial maintenance technicians working on machine guarding, conveyor systems, door interlocks, and similar electromechanical control applications.

This roller lever is intended for use in applications where a mechanical actuator must convert physical contact or position into an electrical signal. It pairs with limit switches in the HL100, HL300, HML100, HML300, L100, L300, ML100, and ML300 series. Typical installation scenarios include factory automation, material handling equipment, and electromechanical safety interlocks in both commercial and light industrial settings.

Key Features

• Adjustable roller lever design allows field-customized trip-point positioning
• Steel roller construction for wear resistance in repeated-actuation environments
• 7.6-inch overall lever length suits a range of actuation geometries
• Designed as a drop-in accessory for multiple compatible limit switch series
• Compact package weight of 0.1 pounds for easy handling and stocking

Compatibility

Compatible with SQUARE D limit switch series HL100, HL300, HML100, HML300, L100, L300, ML100, and ML300.

Installation Notes

Installation should be performed by a qualified electrician or industrial maintenance technician. De-energize and lockout/tagout the associated control circuit before removing or installing any limit switch accessory. Verify the roller lever arm is properly secured and the roller travel path is clear before restoring power. Consult the applicable NEC requirements and equipment manufacturer documentation for wiring and mounting guidance.