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Elma Electronic AG
MR50 Multi Rotary Switch_Datasheet E

MR50 Multi Rotary Switch_Datasheet E

Product catalog summary

Overview: The MR50 is a multi-rotary switch designed for various applications, offering robust features such as gold-plated contacts, rugged design, and sealing up to IP68. It is suitable for environments with temperatures ranging from -45 to +85 °C and is not ITAR related.

Main Features:

Dimensions: Ø 1/2”
Switching mode: Shorting or non-shorting
Selector positions: 10, 12, and 16
Switching torque: Up to 6 Ncm
Sealing: IP68

Applications: The switch is ideal for target aiming devices, night vision devices, two-way radios, cockpit applications, portable devices, and test equipment.

Product Variety: Options include different selector positions, shaft styles, switching torque, and front panel sealing. Customizations are available for shaft style, bushing style, and more.

Specifications:

Mechanical: Detent angles of 22.5°, 30°, and 36° with corresponding positions. Rotational life exceeds 20,000 cycles.
Electrical: Supports switching voltage < 28 VDC and current < 200 mA. Contact resistance is < 50 mΩ.
Materials: Stainless steel shaft, zinc die-cast housing, and Cu alloy contact surface.
Environmental: Operates between -45 to +85 °C, with IP68 sealing and resistance to vibration and shock.

Soldering Conditions: Hand soldering should not exceed 300 °C for 3 seconds, and wave soldering should not exceed 280 °C for 5 seconds.

Ordering Information: The datasheet provides a detailed ordering code system for selecting the desired configuration, including IP sealing, switching mode, detent angle, and torque.

Catalog excerpts

MULTI ROTARY SWITCH MR50 Product description MAIN FEATURES 1/ " 2 SELECTOR SWITCH Dimensions Ø 1/2” Switching mode: Shorting or non-shorting 10, 12 and 16 selector switch positions Switching torque: Up to 6 Ncm Gold plated contacts Rugged design Sealing up to IP68 Operating temperature range: -45 to +85 °C Not ITAR related Various options and customizations Number of selector positions | indexing angles Shaft styles Shorting or non-shorting Switching torque with 3 or 6 Ncm Front panel sealing IP60 and IP68 Shaft style and material Bushing style Switching torque Number of poles Customizable end position Interface solutions (socket plug) Shaft diameter Target aiming devices Night vision devices Two way radios Cockpit applications (aircraft, automotive, construction machines, military vehicles) Portable devices (communication, medical, rescue, sports, transportation, measuring

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MULTI ROTARY SWITCH MR50 Dimensions and pin assignment SWITCH DESIGN DL 11.85 mm ±0.3 mm AL ROUND SHAFT FRONT PANEL SEALING IP68 sealing gasket Dichtung Dimensions in mm Tolerances according to DIN ISO 2768-1 (m), unless otherwise specified

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MULTI ROTARY SWITCH MR50 Dimensions and pin assignment DRILLING DIAGRAM AND FOOTPRINT 16 POSITIONS | 1 POLE Ø 9.6 bolt circle diameter Ø 9.6 bolt circle diameter Ø 9.6 bolt circle diameter Ø 9.6 bolt circle diameter Ø 9.6 bolt circle diameter Ø 9.6 bolt circle diameter Ø 9.6 outer bolt circle diameter Ø 9.6 inner bolt circle diameter Ø 9.6 outer bolt circle diameter Ø 9.6 inner bolt circle diameter Dimensions in mm Tolerances according to DIN ISO 2768-1 (m), unless otherwise specified

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MULTI ROTARY SWITCH MR50 Ordering information PREFERENCE TYPES SELECTION CHART1 IP-SEALING SWITCHING MODE DETENT ANGLE | POSITIONS SWITCHING TORQUE PART NUMBER PACKAGING Antistatic blister box: ACCESSORIES AND SPARE PARTS Hex nut: UNF-2A Part number 4516-50 (50 pieces / bag), brass, nickel plated For other types | options see ordering code

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MULTI ROTARY SWITCH MR50 Specifications MECHANICAL DATA Detent angle | positions: 22.5° detent angle | 16 positions 30° detent angle | 12 positions 36° detent angle | 10 positions Rotary limitation | end stop: Switching torque: 3 or 6 Ncm (±30 % over life time) Rotational life: > 20'000 cycles (tested at room temperature) Allowed shaft load: 400 N push, 400 N pull and 200 N side force (static at 10 mm from supporting surface) Rotational stop strength: Fastening torque of nut (front panel mounting): ELECTRICAL DATA Electrical connection: Switching voltage: Switching current: Contact resistance:...

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