10

D2HW

Sealed Ultra Subminiature Basic Switch

D

2

H

W

Precautions

★Please refer to "General Information" for correct use.

●Degree of Protection

• Do not use this product underwater.

Although molded lead wire models satisfy the test conditions

for the standard given below, this test is to check the ingress of

water into the switch enclosure after submerging the Switch in

water for a given time. Satisfying this test condition does not

mean that the Switch can be used 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 1m underwater)

• Do not operate the Switch when it is exposed to water spray,

or when water drops adhere to the Switch surface, or during

sudden temperature changes, otherwise water may intrude

into the interior of the Switch due to a suction effect.

• Prevent the Switch from coming into contact with oil and

chemicals.

Otherwise, damage to or deterioration of Switch materials may

result.

• Do not use the Switch in areas where it is exposed to silicon

adhesives, oil, or grease. Otherwise faulty contact may result

due to the generation of silicon oxide.

●Soldering

When soldering the lead wire to the terminal, first insert the

lead wire conductor through the terminal hole and then

conduct soldering.

Make sure that the temperature of the soldering iron tip does

not exceed 300°C, and complete the soldering within 3

seconds. Do not apply any external force for 1 minute after

soldering.

Soldering at an excessively high temperature or soldering for

more than 3 seconds may deteriorate the characteristics of the

Switch.

In case of automatic soldering, please do not apply the heat

beyond 260°C within 5 seconds. Pay careful attention so that

flux or solder liquid does not flow over the edge of the PCB

panel.

●Side-actuated (Cam/Dog) Operation

• When using a cam or dog to operate the Switch, factors such

as the operating speed, operating frequency, push-button

indentation, and material and shape of the cam or dog will

affect the durability of the Switch. Confirm performance

specifications under actual operating conditions before using

the Switch in applications.

●Mounting

• Turn OFF the power supply before mounting or removing the

Switch, wiring, or performing maintenance or inspection.

Failure to do so may result in electric shock or burning.

• For M3-screw mounting models, use M3 mounting screws with

plane washers or spring washers to securely mount the

Switch.

Tighten the screws to a torque of 0.27 to 0.29 N·m {27.5 to

29.5 gf}. Exceeding the specified torque may result in

deterioration of the sealing or damage.

• For models with posts, secure the posts by thermal caulking or

by pressing into an attached device. When pressed into an

attached device, provide guides on the opposite ends of the

posts to ensure that they do not fall out or rattle.

Thermal caulking conditions varies according to the equipment,

jig and base used for switch mounting. Consult your OMRON

sales representative for details.

●Operating Body

• Use an operating body with low frictional resistance and of a

shape that will not interfere with the sealing rubber, otherwise

the plunger may be damaged or the sealing may deteriorate.

●Handling

• Do not handle the Switch in a way that may cause damage to

the sealing rubber.

• When handling the Switch, ensure that pressure is not applied

to the posts in the directions shown in the following diagram.

Also, ensure that uneven pressure or pressure in a direction

other than the operating direction is not applied to the Actuator

as shown in the following diagram. Otherwise, the post,

Actuator, or Switch may be damaged, or the service life may

be reduced.

●Wiring Molded Lead Wire Models

• When wiring molded lead wire models, ensure that there is no

weight applied on the wire or that there are no sharp bends

near the parts where the wire is drawn out.

Otherwise, damage to the Switch or deterioration in the

sealing may result.

●Using Micro Loads

• Even when using micro load models within the operating

range shown below, if inrush/surge current occurs, it may

increase the contact wear and so decrease durability.

Therefore, insert a contact protection circuit where necessary.

Cautions

Correct Use