Sunday, April 22, 2018
Publication Date: 12/1/2007
Archive >  December 2007 Issue >  Product Preview: Electronics West / MDM > 

NKK Intros Environmentally Sealed Switches
Environmentally sealed switches.
Scottsdale, AZ — NKK Switches has introduced the WT and WR series of cost-effective, environmentally sealed toggle and rocker switches. Engineered to meet the needs of applications requiring an environmentally sealed and robust solution, WT and WR series switches conform to IP67 (front panel) and IP60 (back panel) of IEC60529 Standards and are designed for use in outdoor and harsh applications. Featuring single unit construction for added protection from harsh elements, these devices are constructed of heat resistant resin meeting UL94V-0 flammability ratings. Both the toggles and the rockers incorporate a specially designed switching mechanism for breaking light welds, qualifying them to IEC 61058 (UL 61058-1). The devices are available in a wide selection of circuit configurations including maintained and momentary options. Both actuator options are available with solder lug, screw and wire lead terminations. The wire leads are sheathed with heat resistant vinyl in accordance with UL 1015 and CSA TEW 105 Standards for Appliance Wiring Material (AWM), and conform to IP67 for front and back panel. In addition, the WR series of rockers can be specified with 0.250-in. quick connect terminals to reduce and simplify assembly time.

The WT series of environmentally sealed toggles is rated at 10A at 125VAC and 6A at 250VAC or 10A at 30VDC. The switches can be specified in single or double pole models. The bushing has both an inner and outer sealing ring. Bushings are also constructed with an anti-jamming design, protecting contacts from damage due to excessive downward force. According to the company, mechanical life for maintained circuits is 50,000 operations minimum, 30,000 operations minimum for momentary circuits. Electrical life is 15,000 operations minimum for all configurations.

The WR series of environmentally sealed rockers is rated at 15A at 125/250VAC and 15A at 30VDC and is offered in single pole. Mechanical life is rated at 30,000 operations for minimum for all circuits. Electrical life is rated 15,000 minimum for maintained circuits and 10,000 operations minimum for momentary circuits. Agency approvals include UL and C-UL Recognition, VDE, and EN conformity.

For more information, contact NKK Switches, 7850 E. Gelding Dr., Scottsdale, AZ 85260 480-991-0942 fax: 480-998-1435 Web:

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