Elma Rotary Collet Knob for use with Rotary Switch 020-3420

Elma 020-3420 Rotary Collet Knob is a precision accessory designed for secure attachment to rotary switches in industrial and automation environments. It features a robust black finish and is part of Elma’s classic collet knob series available in several diameters including 9mm, 10mm, 14.5mm, and 21mm.

The knob is fixed firmly onto switch shafts using Elma’s proven collet tightening method which ensures a tight grip and prevents loosening during operation. Additionally, the tightening elements are concealed by nut covers, enhancing the product’s aesthetic and functional design.

Manufactured in compliance with RoHS environmental standards, this rotary collet knob is suitable for use in various electrical and automation system applications, providing reliable control interfaces on rotary switch components.

This product finds application in industries requiring durable and ergonomic rotary switch controls, such as industrial automation, electrical equipment manufacturing, control panel fabrication, and instrumentation systems.

Classic series collet knob available in multiple diameters for versatile rotary switch compatibility. Black color enhances the visual match with industrial assemblies. Proven collet tightening method delivers secure mounting and operation stability.

Concealed tightening elements enhance protection and appearance. RoHS compliant for reduced environmental impact and safe usage. Suitable for industrial automation, electrical controls, and instrumentation use cases. Explore the extensive range of switch components and Rotary Switch Knobs available in the Electronics & Electricals category at EnvMart for tailored industrial solutions.