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1. Safety Standards Outline

Safety standards are established by a country or an organization representing it to protect

general users from electrical shock and fire hazards. It establishes standards for electrical

devices and components. For electrical equipment manufacturers, utilizing switches that have

been safety-approved ensures the safety of the switch. The use of a safety-approved switch also

simplifies at least one part of the process of obtaining certification by safety testing.

2. Major Safety Standards

（1）Electrical Appliance and Material Safety Law

The conventional [Electrical Appliance and Material Control Law] has changed to [Electrical

Appliance and Material Safety Law] and has been enforced since April 1, 2001. Electrical

appliances are categorized into special electric appliances and parts（formerly Class A）and

Electrical appliances other than the special electric appliances（formerly Class B）.Special

electric appliances are required to receive goodness of fit test at a certified test agency and to

store the certificate. Also, penal provisions have been reinforced.

（2）UL（Underwriters Laboratories Inc.）

Underwriters Laboratories Inc.（UL）is the American safety approving organization. Its purpose is

to ensure consumer safety and protect them from fire hazards. State law requires that equipment

to be exported to the United States utilize UL approved power switches or power switches

meeting UL standards and capable of passing UL tests.

SDDJE, SDDJF, SDKP,

SDDJF1A, SDKZ, SDDE

350±10℃

3＋1/0s

SDKR

300±10℃

3±0.5s

Series

Soldering

temperature

Soldering time

Reference for Hand Soldering

Reference for Dip Soldering

(For PC board terminal types and SDDJF right-angle

terminal types)

SDKR, SDDJE, SDDJF,

SDKP, SDKZ, SDDE

260±5℃

10±1s

Series

Dip soldering

Soldering temperature Duration of immersion

Power Switches Cautions

Power Switches Safety Standards

1. The primary power supply switching is subject to the safety regulations, and the provisions differ by

each destination. Consult with us for non-standard use cases.

2. An unstable contact may occur if the switch current is lower than 0.5A. For this case, consult with us.

3. These power switches were produced for alternating current. For direct current, consult with us.

4. Appling load to terminals during soldering under certain conditions may cause deformation and electrical

property degradation.

5. Avoid use of water-soluble soldering flux, since it may corrode the switches.

6. When soldering twice, wait until the first soldered portion cools to normal temperature. Continuous

heating will deform the external portions, loosen or dislodge terminals, or may deteriorate their electrical

characteristics.

7. Before soldering switches with locking mechanism, release the locks. If they are soldered without

releasing the locks, the soldering heat may deform the locking mechanism.

8. Be sure to release the locks before removing the knobs. Otherwise, the locking mechanism may be

broken.

9. Be sure to use the switch with forced travel positioned as close to the total travel as possible.

10. Tighten the mounting screws by applying the specified torque. Tightening with a larger torque than the

specified will result in malfunction or breakage of screws.

11. Corrosive gas if generated by peripheral parts of a set, malfunction such as imperfect contact may

occur. Thorough investigation shall be required beforehand.

12. Storage

Store the products as delivered at normal temperature and humidity, out of direct sunlight and away

from corrosive gases. Use them as soon as possible and no later than six months after delivery.

Once the seal is broken, use them as soon as possible.

Power Switches Soldering Conditions