83278605

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Snap action switches (also called limit or strata switches) have been used for decades to detect and activate on-off conditions in a variety of applications. The 83278605 series of limit switches from EnPro Industries is a dependable, low-cost choice for applications in safety and process control. This article provides an overview of the features and capabilities of this switch, along with its applications, working principles, and installation instructions.

Features

The 83278605 switch offers a wide range of features to meet just about any requirement. It is designed to be used in hazardous locations and is suitable for Class I, Division 2 / Groups A, B, C and D, under UL 508A / CSA C22.2 #14. It is rated for both indoor and outdoor environments, with operating temperatures ranging from -25°C to +70°C. It is also resistant to shock and vibration up to 5 Gs. The switch is made of durable polycarbonate and has both a blow- and snap- action armature.

Applications

The 83278605 switch is suitable for a wide variety of safety, process control and automation applications. It is ideal for even the most demanding industrial applications, such as lifting equipment, conveyance machinery, door openers, and hazardous location applications. It can also be used for high-power applications such as motor starter controls, and can be used in place of pressure, liquid level, and flow switches.

Working Principle

The 83278605 switch operates by an armature that is actuated by either a blow or a snap-action mechanism. The armature is released when a force is applied to the button and travels along a defined path in order to make or break contact. This motion causes the armature to move rapidly, making contact and breaking it quickly, resulting in a loud snapping noise. This is known as the snap action of the switch.

Once actuated, the contacts remain in the same position until the armature is reset to its original position. The armature is reset by manually actuating the switch, by removing the force from the button. The switch will then return to its original position, allowing the contacts to reset.

Installation

Installing the 83278605 switch is a simple process. Start by choosing a location and mark it off with a felt tip pen or a pencil. Next, use a drill or a hole saw to make a hole the size of the switch you will be using. Install the switch into the hole, and then attach the power supplies and signal lines according to the instructions on the switch. Finally, use the switch\'s manual override system or the external reset to test that the signal is working correctly.

The 83278605 series switch from Enpro Industries is a reliable and economical choice for safety and process control applications. It is designed to be used in hazardous locations, and offers a wide range of features such as shock and vibration resistance, as well as a wide operating temperature range. The switch operates on a snap-action mechanism, and is easy to install into any application.

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