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NKK Switches MRX402A rotary switch

The Series MR power level rotary switches are compact, durable, and designed for precise control in electronic and industrial applications. Equipped with positive detent mechanisms, adjustable stopper plates, and high-contact reliability through self-cleaning sliding contacts, these switches offer 2-8 position settings with different terminal and contact configurations. Made from brass, zinc, phenolic resin, and silver alloy materials, they operate from -10°C to +70°C and withstand vibrations and shocks. Suitable for resistive loads up to 3A, with UL recognition, these switches ensure long-lasting performance in demanding environments.

Authorized Distributors
Source:DigiKey
Part No:MRX402-A
Stock:66
Inv Date:06-21-2026
Price: Unit price: $32.64
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Part No:MRX402-A
Stock:12
Inv Date:06-22-2026
Price: Unit price: $27.34
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Part No:MRX402-A
Stock:3
Inv Date:06-21-2026
Price: Unit price: $9.6
Buy/RFQ:
Part No:MRX402-A
Stock:44
Inv Date:06-21-2026
Price: Unit price: $30.68
Buy/RFQ:

NKK Switches MRX402A rotary switch Specifications:

  • Electrical Capacity: 2A @ 125V AC or 1A @ 30V DC
  • Operating Temperature: -10°C to +70°C
  • Contact Resistance: 10 milliohms maximum for MRX, MRY, & MRT
  • Insulation Resistance: 100 megohms minimum @ 500V DC for MRX & MRY, 200 megohms for MRT
  • Dielectric Strength: 1,000V AC for 1 minute
  • Mechanical Life: 15,000 operations minimum
  • Electrical Life: 7,500 operations minimum
  • Torque Range: 0.03 to 0.15Nm
  • Detent Mechanism: Positive with audible feedback
  • Materials: Brass with nickel plating, zinc plated steel, phenolic resin
  • Environmental: Humidity 90-95% for 96 hours, shock 50G, vibration 10-55Hz with 1.5mm amplitude
  • Terminals: PC-turret, turret, and solder lug types
  • Switch Contact Type: Nonshorting break-before-make

Buy the NKK Series MR Rotary Switch: MRX402A

Enhance your control systems with the high-reliability Series MR rotary switches. Designed for durability and precise multi-position switching, these switches feature positive detent mechanisms, adjustable stopper plates, and robust construction from high-quality materials. Suitable for resistive loads up to 3A, they operate effectively from -10°C to +70°C, resisting vibration and shock. UL recognized, with terminal options including PC-turret, turret, and solder lug, these switches ensure long-lasting performance in demanding industrial environments. Order online now for quick delivery.

Get NKK Series MR402A rotary switch today—built for precision, durability, and reliable multi-position control in your industrial applications.

Frequently Asked Questions

Where can I buy NKK Switches MRX402A?

You can click on the BUY or RFQ button to purchase MRX402A from an authorized NKK Switches distributor.

How do I troubleshoot issues or seek technical support for part MRX402A?

You can download the MRX402A datasheet or visit the NKK Switches website for support.

Who is the manufacturer of MRX402A?

NKK Switches

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