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Lead Contents

Safety Limit Switches

Precautions for Safety Use
Precautions for Correct Use
Safety Precautions

Primary Contents

Precautions for Safe Use

Do not use the Switch in atmospheres containing explosive or flammable gases.

Although the switch box is protected from dust or water penetration, the head is not protected from minute foreign matter or water penetration. Ensure that minute foreign matter and water do not penetrate the head. Failure to do so may result in accelerated wear, Switch damage, or malfunctioning.

The durability of the Switch varies considerably depending on the switching conditions. Always confirm the usage conditions by using the Switch in an actual application, and use the Switch only for the number of switching operations that its performance allows.

Do not use the Switch as a stopper.

Check the Switches before use and inspect regularly, replacing them when necessary. If a Switch is kept pressed for an extended period of time, the components may deteriorate quickly, and the Switch may not release.

To protect the Switch from damage due to short-circuits, be sure to connect a quick-response fuse with a breaking current 1.5 to 2 times larger than the rated current in series with the Switch. When complying with EN certified ratings, use a 10 A IEC 60269- compliant gI or gG fuse.

Do not use the Switch in a startup circuit. Use it instead for a safety confirmation signal.

Do not drop the Switch. Doing so may prevent it from functioning to its full capacity.

Do not disassemble or modify the Switch. Doing so may prevent it from operating correctly.