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NKK Switches WT21S Sealed Pushbutton Switch

This standard-sized pushbutton switch provides reliable environmental sealing against dust and moisture, making it ideal for industrial and outdoor use. It features IP67 rated sealing at the front and back panels, a durable construction with epoxy sealed base, and a high arc and tracking resistant outer housing. The switch accommodates various circuit configurations, including SPST and DPDT options, with solder lug, screw lug, or wire lead terminals. It supports a wide temperature range from -30°C to +70°C and ensures electrical and mechanical longevity for demanding environments. Its compact design and high sealing standards make it suitable for control panels, machinery, and outdoor equipment.

Authorized Distributors
Source:DigiKey
Part No:WT21S
Stock:247
Inv Date:06-17-2026
Price: Unit price: $26.21
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Part No:WT21S
Stock:12
Inv Date:06-18-2026
Price: Unit price: $23.78
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Part No:WT21S
Stock:0
Inv Date:06-17-2026
Price: Unit price: $31.44
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Part No:WT21S
Stock:147
Inv Date:06-17-2026
Price: Unit price: $26.47
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NKK Switches WT21S Sealed Pushbutton Switch Specifications:

  • Electrical Capacity: 10A @ 125V AC, 6A @ 250V AC, 10A @ 30V DC
  • Contact Resistance: 10 milliohms maximum for solder lug & screw terminal models, 30 milliohms for wire lead models
  • Insulation Resistance: 200 megohms minimum @ 500V DC
  • Dielectric Strength: 1,500V AC for 1 minute
  • Mechanical Life: 50,000 operations minimum for certain models
  • Electrical Life: 30,000 operations minimum for all models
  • Angle of Throw: 24°
  • Materials & Finishes: Brass with chrome plating, fiberglass reinforced polyamide (UL94V-0), melamine, Nitrile rubber, silicone rubber, natural rubber, copper with silver plating
  • Operating Temp Range: -30°C to +70°C
  • Humidity: 90-95% for 96 hours @ 40°C
  • Vibration: 10-55Hz with peak-to-peak amplitude of 1.5mm
  • Shock: 50G acceleration tests
  • Front Panel Seal: IP67 of IEC60529
  • Behind Panel Seal: IP60 or IP67 depending on terminal type
  • Soldering Time & Temp: Suitable manual soldering (Profile A per supplement)
  • Mounting Torque: 1.47Nm (13 lbs-in)
  • Standards & Certifications: UL94V-0 flammability, UL and CSA recognized, temperature up to +105°C, maximum load 600V

Buy the Buy Environmentally Sealed Toggle Switch Part Number WT21S Online

Purchase the environmentally sealed pushbutton switch online today to ensure your machinery and outdoor equipment operate reliably under harsh conditions. With an IP67 rated seal, durable construction, and high electrical capacity, this switch provides excellent protection against dust and moisture. Its versatile circuit configurations, including SPST and DPDT versions, support multiple control needs. Enjoy quick, secure ordering and expert support for industrial, outdoor, and control panel applications. Invest in quality and peace of mind with our sealed switches—order now for prompt delivery and reliable performance.

Buy WT21S sealed pushbutton switch now and experience unmatched reliability and outdoor durability for your control applications.

Frequently Asked Questions

Where can I buy NKK Switches WT21S?

You can click on the BUY or RFQ button to purchase WT21S from an authorized NKK Switches distributor.

How do I troubleshoot issues or seek technical support for part WT21S?

You can download the WT21S datasheet or visit the NKK Switches website for support.

Who is the manufacturer of WT21S?

NKK Switches

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