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NKK Switches MRX402BF rotary switch

This 4-pole rotary switch with 2 positions features a compact design and a small green knob, ideal for controlling multiple circuit pathways in electronic and industrial applications. It offers reliable break-before-make contact timing with self-cleaning sliding contacts for high contact reliability. Constructed with durable materials including brass with nickel plating and phenolic resin insulation, it withstands operating temperatures from -10°C to +70°C. The switch features PC-turret terminals, a mounting torque of 0.03 to 0.15Nm, and rated resistive load of 3A at 125V AC. Suitable for automation and control systems requiring multiple switching configurations.

Authorized Distributors
Source:DigiKey
Part No:MRX402-BF
Stock:11
Inv Date:06-17-2026
Price: Unit price: $125.13
Buy/RFQ:
Source:DigiKey
Part No:MRX402-BF
Stock:0
Inv Date:06-17-2026
Price: Unit price: $34.21
Buy/RFQ:
Part No:MRX402-BF
Stock:0
Inv Date:06-18-2026
Price: Unit price: $35.58
Buy/RFQ:
Part No:MRX402-BF
Stock:0
Inv Date:06-17-2026
Price: Unit price: $36.05
Buy/RFQ:
Part No:MRX402-BF
Stock:44
Inv Date:06-17-2026
Price: Unit price: $33.38
Buy/RFQ:

NKK Switches MRX402BF rotary switch Specifications:

  • Electrical Capacity: 3A @ 125V AC or 2A @ 30V DC
  • Contact Resistance: 10 milliohms maximum
  • Insulation Resistance: 100 megohms minimum @ 500V DC
  • Dielectric Strength: 1,000V AC for 1 minute
  • Mechanical Life: 15,000 operations
  • Operating Temperature Range: -10°C through +70°C
  • Humidity: 90~95% for 96 hours @ 40°C
  • Vibration Tolerance: 10~55Hz with 1.5mm amplitude
  • Shock Resistance: 50G acceleration
  • Mounting Torque: 0.03~0.15Nm
  • Terminal Type: PC-Turret
  • Actuator: Small green knob
  • Number of Poles & Positions: 4 poles, 2 positions
  • Housing Material: Brass with nickel plating
  • Insulation Material: Phenolic resin

Buy the Buy NKK Series MRX Part Number MRX402BF Online

Order the NKK rotary switch MRX402BF online today to experience high durability, reliable performance, and versatile switching options in a compact form. Ideal for industrial automation, control panels, and circuit switching with a robust construction featuring durable brass housing and phenolic insulation. Its accurately rated electrical load capacity ensures dependable operation in demanding environments. Easy to install with PC-turret terminals, this switch supports multiple configurations. Purchase now for a dependable control solution designed to last and deliver consistent performance in your automation or electrical system.

Get NKK MRX402BF today—crafted for reliable switching and long-lasting durability in compact control systems.

Frequently Asked Questions

Where can I buy NKK Switches MRX402BF?

You can click on the BUY or RFQ button to purchase MRX402BF from an authorized NKK Switches distributor.

How do I troubleshoot issues or seek technical support for part MRX402BF?

You can download the MRX402BF datasheet or visit the NKK Switches website for support.

Who is the manufacturer of MRX402BF?

NKK Switches

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