D2VW Sealed Miniature Basic Switch

Cautions

●Degree of Protection

·Do not use the Switch underwater.The Switch was tested and found to meet the conditions necessary to meet the following standard, however, the test checks for water intrusion after immersion for a specified time period, not for switching operation underwater.
JIS C0920: Degrees of protection provided by enclosures of electrical apparatus (IP Code)
IEC 60529: Degrees of protection provided by enclosures (IP Code)
Degree of protection: IP67
(check water intrusion after immersion for 30 min submerged 1 m underwater)

●Protection Against Chemicals

·Prevent the Switch from coming into contact with oil or chemicals. ·Otherwise, damage to or deterioration of Switch materials may result.

●Soldering

·Connecting to Solder Terminals When soldering the lead wire to the terminal, first insert the lead wire conductor through the terminal hole and then conduct soldering.
Complete the soldering at the iron tip temperature between 350 to 400°C within 3 seconds, and do not apply any external force for 1 minute after soldering. Soldering at a excessively high temperature or soldering for more than 3 s may deteriorate the characteristics of the Switch.

Correct Use

●Mounting

·Use M3 mounting screws with plane washers or spring washers to securely mount the Switch. Tighten the screws to a torque of 0.39 to 0.59 Nm {4 to 6 kgfcm}.

●Operating Body

·With the pin plunger models, set the Switch so that the plunger can be pushed in from directly above. Since the plunger is cov- ered with a rubber cap, applying a force from lateral directions may cause damage to the plunger or reduction in the sealing capability.

●Handling

•Handle the Switch carefully so as not to break the sealing rubber of the plunger.

●Using Micro Loads

•Using a model for ordinary loads to open or close the contact of a micro load circuit may result in faulty contact. Use models that operate in the following range. However, even when using micro load models within the following operating range, if inrush current occurs when the contact is opened or closed, it may increase the contact wear and so decrease durability. Therefore, insert a contact protection circuit where necessary. The N-level reference value applies for the minimum applicable load. This value indicates the malfunction reference level for the reliability level of 60% (λ60).
(JIS C5003)
The equation, λ60=0.5×10-6/operations indicates that the estimated malfunction rate is less than 1/ 2,000,000 operations with a reliability level of 60%.