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NKK Switches MRK403A Sealed Rotary Switch
The MRK403A is a sealed rotary switch designed for low-voltage, low-current, logic-level circuits, offering break-before-make contact timing and self-cleaning contacts. It features a durable zinc alloy housing with zinc plating, various pole and circuit configurations, and an adjustable stopper plate for 2-3 position settings. The switch has a half-inch diameter, IP67 sealing, and comes with PC terminals for reliable connections. Suitable for PCB mounting, it withstands harsh environments with high durability and flexible installation options, making it ideal for industrial, automation, and control applications.
NKK Switches MRK403A Sealed Rotary Switch Specifications:
- Electrical Capacity: 250mA @ 125V AC, 0.4VA max @ 28V AC/DC
- Contact Resistance: 10 milliohms max for MRA; 50 milliohms max for MRF & MRK
- Insulation Resistance: 100 megohms min @ 500V DC
- Dielectric Strength: 1,000V AC min for MRA; 500V AC min for MRF & MRK
- Mechanical Life: 30,000 operations min
- Electrical Life: 10,000 operations min
- Operating Temperature Range: -10°C to +70°C (14°F to 158°F)
- Vibration: 10-55Hz with 1.5mm amplitude
- Shock: 50G acceleration
- Sealing: MRK model meets IP67 standards, IP68 optional
- Physical Dimensions: Half-inch diameter, housing depth 0.323” to 0.669”, mounting hardware available
- Materials: Brass with nickel plating, zinc alloy housing, polyamide cover with stopper for MRF, self-cleaning sliding contact or rotary disk, PC terminals
- Mounting: Panel or PCB, with optional support bracket
- Standards: Design for low-voltage circuits, not UL/CSA certified
Buy the Buy NKK Switches Half-Inch Diameter Process Sealed Rotaries Part Number MRK403A Online
Discover the NKK MRK403A sealed rotary switch, engineered for durability and reliability in harsh conditions. With IP67 sealing, self-cleaning contacts, and an adjustable stopper plate for 2-3 position settings, it’s perfect for industrial and automation uses. Easy to install with PC terminals, it withstands vibration, shock, and temperature extremes, ensuring long-lasting performance. Order online now for fast delivery and enjoy proven quality designed to meet rigorous industrial standards, making your control systems more dependable and efficient.
Order your NKK Series MRK403A sealed rotary switch today and ensure reliable control in demanding industrial environments with IP67 protection.
Frequently Asked Questions
Where can I buy NKK Switches MRK403A?
You can click on the BUY or RFQ button to purchase MRK403A from an authorized NKK Switches distributor.
How do I troubleshoot issues or seek technical support for part MRK403A?
You can download the MRK403A datasheet or visit the NKK Switches website for support.
Who is the manufacturer of MRK403A?
NKK Switches