1LS-J550SE

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Snap action, limit switches provide a variety of applications and purposes. The 1LS-J550SE is a multi-purpose limit switch from Eaton, a well known manufacturer of industrial automation and control components. This particular limit switch is a single-pole double-throw (SPDT) pushbutton with positive-break contacts for higher-power applications. It is designed to provide cost-effective control and sensing in motor, lighting, and heating applications as well as other industrial settings.

Functional Overview

The 1LS-J550SE limit switch is designed to be a reliable, cost-effective solution for machine applications by providing control and sensing across a wide range of environments. Its features include a long electrical life up to 100 thousand operations, a high-tensile steel actuator, and a silver plated contact for improved switching performance. The switch also offers a snap-action mechanism and adjustable trip points to provide exact and repeatable operation in motor, lighting, and heating applications and a variety of other industrial settings.

Technical Specifications

The 1LS-J550SE has a wide range of factory-set trip points. It is available in 3A and 5A, both DC and AC, and provides a reset distance of 0.45 mm (minimum) to 1.0 mm (maximum). The switch also has a contact resistance of less than 10mΩ and an insulation resistance of more than 10MΩ. The switch has an operating temperature range of -25°C to +75°C, with a humidity of 95% RH non-condensing. Other technical specifications include a vibration resistance of 10-57Hz at 0.75mm double-amplitude and a vibration resistance of 10-500 Hz at 1.5 g.In addition to these features, the 1LS-J550SE also boasts UL and CSA approval for use in hazardous locations.

Application Field

The 1LS-J550SE is well suited for a range of applications and environments. It is designed to be used in motor starters, conveyors, elevators, door and window openers, lighting fixtures, and heating appliances. It is especially useful in AC applications where it is crucial to match the switch’s trip point with the exact mechanical movement of the motor. This ensures accurate and repeatable operation, helping to reduce downtime and increase efficiency.

Working Principle

The 1LS-J550SE limit switch operates on the principle of electrical contact closure. As the switch is mechanically opened, the contacts are separated and the electrical current is interrupted. When the switch is mechanically closed, the contact points are closed and an electrical current is established. This allows the switch to detect the status of an electrical circuit or the movement of a mechanical actuator. Many limit switches come with adjustable trip points, which allow for exact and repeatable operation in motor, lighting, and heating applications.

Conclusion

The 1LS-J550SE multi-purpose limit switch from Eaton is a reliable, cost-effective solution for a range of motor, lighting, and heating applications. It features a long electrical life, a snap-action mechanism, and adjustable trip points for exact and repeatable operation. The switch also boasts UL and CSA approval for use in hazardous locations. Its features, combined with its wide range of factory-set trip points, make it an ideal solution for a variety of industrial settings.

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