Precision-Engineered 1/2-inch Rotary Switch Provides Excellent Tactile Feedback in Compact, Rugged Design



Cost-effective and customizable in small quantities, Elma Electronic’s MR50 offers shaft, position and switching torque options

Technical Highlights:

– 1/2″ compact, rugged design for space-constrained and portable applications

– Rotational life of 20,000 minimum

– Excellent tactile feedback, even when user is wearing gloves

Customizable in small quantities: shaft style and material, positions, bushing style, switching torque

With its small diameter and rugged, durable housing, Elma Electronic’s MR50 1/2″ rotary switch is a perfect fit for portable, mobile and space-constrained devices used in harsh environments.

Based on more than five decades of proven engineering experience, the multi-function MR50 offers precision selection with up to 16 selector positions that offer excellent tactile feedback, even when the user is wearing gloves.

Mark Thorsell, sales manager for switches at Elma Electronic, noted, “As the number and type of handheld and mobile devices grow exponentially each year throughout the defense, industrial and medical industries, so is the demand for small, rugged and highly reliable rotary switches. No one wants to experience a control failure of any type out in the field. And when lives may be on the line, reliability is not an option. The MR50 provides rugged dependability in any application, giving the user peace of mind that there is one less critical issue to worry about.”
Typical applications include avionics, military targeting and communications as well as cockpit controls and transportation-related devices. The MR50 is the only ruggedized 1/2” rotary switch not subject to ITAR controls. Elma’s manufacturing facilities are located in Europe, where ITAR registration does not apply to either the MR50 or any of Elma’s other rugged switches and encoders.

Boasting a zinc die-cast housing with nickel plating, solid gold contacts and a robust stainless-steel shaft, as well as the option of IP68 front panel sealing, the MR50 provides the required reliability in extreme conditions and quality for which Elma has become renowned. Switching torques are selectable at either 3 Ncm or 6 Ncm, depending on the user’s preferences.
The robust MR50 switches are also cost-effectively customizable, even in smaller quantities, with competitive lead times. Users can select between round and D-shaft configurations as well as the lengths of the shaft.

Standard switch configurations include 10, 12 and 16 positions, with shorting or non-shorting contact arrangements available regardless of the number of positions.  Operating temperature range is -45 C to +85°C (IEC 60068-2-14).   The standard MR50 version is currently 1-pole, however 2- and 3-pole versions are planned shortly. The series meets humidity, vibration and shock to MIL-STD-202G standards.

Pricing and delivery for the MR50 is dependent upon configuration and quantity.

For more information, please visit

http://www.elma.com/en/products/rotary-switches/rotary-switching-products/product-pages/type-mr50-detail/

contact sales at sales@elma.com , or call (510) 656-3400.

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About Elma Electronic Inc.
With U.S. headquarters in Fremont, Calif., Elma maintains multiple sales, engineering and manufacturing operations in Atlanta, Ga., and Philadelphia, Pa. The company serves the mil/aero, industrial, research, telecom, medical and commercial markets and is certified to ISO 9001 and AS 9100.

Contact Information

Elma Electronic Inc.

44350 S. Grimmer Blvd.
Fremont, CA, 94538
United States

tele: 510-565-3400
fax: 510-656-3783
sales@elma.com
www.elma.com

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