Toggle Switches are environmentally sealed.

Press Release Summary:

Available in single- and double-pole, momentary or maintained actions, and in 6 circuit configurations, WT series of toggle switches are rated at 10 A at 125 Vac and 6 A at 250 Vac, or 10 A at 30 Vdc. Operating temperature range is -22 to +158°F, and sealed construction enables use in outdoor and harsh applications. Toggles feature heat resistant resin outer housing that meets UL 94V-0 flammability standards, and actuator and base are epoxy sealed to prevent entry of contaminants.

Original Press Release:

NKK Switches Introduces Environmentally Sealed Toggles

WT Series is Engineered for Use in Outdoor and Harsh Applications

SCOTTSDALE, Ariz. (April 6, 2006) - NKK Switches continues to expand its product offerings in the industrial markets with the introduction of the environmentally sealed WT series of toggle switches.

Designed to meet the needs of applications requiring an environmentally sealed solution, the WT series of toggles is rated at 10A @ 125V AC and 6A @ 250V AC or 10A @ 30V DC. The sealed construction of these standard size toggles conforms to IP67 and IP60 of IEC60529 Standards and is engineered for use in outdoor and harsh applications. The WT toggles incorporate a specially designed switching mechanism for breaking light welds, which qualifies these toggles to IEC 61058 (UL 61058-1). Minimal contact bounce is achieved with a specially designed and interlocked switch mechanism.

The WT series of toggles feature a single unit construction of the bushing and the top of the housing, giving this environmentally sealed toggle switch added protection from harsh elements. An outer housing of heat resistant resin meets UL 94V-0 flammability standards and provides high arc and tracking resistance. The actuator and base are epoxy sealed to prevent entry of contaminants. The bushing features both an inner and outer sealing ring. These switches also feature an anti-jamming design to protect contacts from damage due to excessive downward force on the actuator.

The WT series is available in single-pole and double-pole, momentary or maintained actions, and in six circuit configurations. Threaded bushings are 12mm for standard panel cut out mounting. Engineers can specify solder lug, screw or wire lead terminals. Solder lug and screw terminal models meet IP67 of IEC 529 Standards at front panel (dust tight but not water protected). Wire leads are sheathed with heat resistant vinyl in accordance with UL 1015 and CSA TEW 105 Standards for Appliance Wiring Material (AWM). These models conform fully to IP67 of the IEC Standards at both front and behind panel.

Mechanical life for all maintained circuits is 50,000 operations minimum, 30,000 operations minimum for momentary circuits. The electrical life is 15,000 operations minimum for all configurations. The operating temperature range is -30°C through +70°C (-22°F through +158°F). Dielectric strength is rated 1,500V AC minimum.

A leading designer and producer of electromechanical switches, NKK Switches offers one of the industry's most extensive selections of illuminated, process sealed, miniature, specialty and surface mount switches. The company manufactures more than four million toggle, rocker, pushbutton, slide, rotary and DIP rotary, keypad and keylock switches. NKK Switches maintains a complete network of qualified representatives and distributors through the United States, Canada, Central and South America, Europe and Asia.

NKK Switches is keenly aware of the myriad of issues that are covered under the RoHS directive. With more than 50 years of experience in the switch industry and as an environmentally-conscious company, NKK is committed to not only providing high quality products and services, but also providing environmentally safe products for its valued customers. NKK continues to lead the industry in responding to the needs of the marketplace with innovation, high reliability and a commitment to excellence.

For more information, contact NKK Switches, 7850 E. Gelding Dr., Scottsdale, AZ 85260. Phone 480-991-0942. Fax 480-998-1435. Or visit the NKK Switches Web site at

Bob Wanless (NKK Switches)

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