38HM43

Snap Action Switches

The 38HM43 snap action switch is a versatile electrical switch that is typically used to control a device based on its current or voltage level, or to detect physical movement. It is a single pole switch that utilizes a lever or spring to rapidly open or close a mechanical contact when it is actuated. The 38HM43 switch is designed to provide reliable, consistent and repeatable results. It is typically used in a wide range of applications, including industrial control, motors, HVAC systems and lighting.

When the switch is closed, current (or voltage) flows through the contacts and is directed to the connected device. When the contacts are open, the device is powered down. The 38HM43 snap action switch is designed to precisely control and monitor devices, with no hysteresis or "deadband"; in other words, the contacts can be considered "instantly" open or closed when actuated.

Working Principle

The 38HM43 snap action switch works by relying on the leverage provided by a lever or spring contact. This mechanism allows for a quick and accurate opening or closing of the switch, depending on the switch\'s actuation point. When the switch is actuated, the lever or spring contact applies a force onto the internal contact and rapidly opens or closes them. This force is applied very quickly and is able to accurately control and monitor the device without any hysteresis or "deadband" - the contacts are considered "instantly" open or closed when actuated.

When the contacts are open, no current (or voltage) is allowed to pass through the switch. When the switch is closed, current (or voltage) is directed to the connected device. The switch is designed to operate independently from the main power. This means that it does not require the power to be cycled off before the contacts can be changed - it can be actuated at any time.

Limits Switches

The 38HM43 limit switch is a versatile electrical switch that is typically used to detect physical movement in industrial applications. This type of switch utilizes a lever or spring to rapidly open or close a mechanical contact. The 38HM43 limit switch is designed for reliable, consistent and repeatable results. It is typically used in a wide range of applications such as automation, motors, HVAC systems and lighting.

The 38HM43 limit switch works by relying on the leverage provided by a lever or spring contact. This mechanism allows for a quick and accurate opening or closing of the switch, depending on the switch\'s actuation point. When the switch is actuated, the lever or spring contact applies a force onto the internal contact, which rapidly opens or closes them.

The limit switch is designed to be independent from the main power. This means it does not require the power to be cycled off before the contacts can be changed - they can be actuated at any time. This can be particularly useful in applications where the switch needs to be actuated even when the power is on.

When the contacts are open, no current (or voltage) is allowed to pass through the switch. When the switch is closed, current (or voltage) is directed to the connected device. As a result, the 38HM43 limit switch can be used to accurately detect physical movement, or to control/monitor current or voltage level.