D4JL-2RFA-D7-01

Snap Action, Limit Switches

The D4JL-2RFA-D7-01 is a snap action, limit switch. It is a light-duty switch with a simple, versatile design, which makes it suitable for numerous industrial applications. The switch is constructed of robust aluminum alloy for durability, and the contact material is a stainless steel alloy for greater reliability. The D4JL-2RFA-D7-01 has two independent electrical circuits, one Normally Open and one Normally Closed. The two circuits can be used independently or in combination.

Application Field

The D4JL-2RFA-D7-01 is suitable for use in a variety of industrial applications. It can be used as a limit switch in control systems to sense the position of a movable part. It is also commonly used as a safety switch in areas where fail-safe operation is essential. The switch can be used in equipment such as ovens, conveyor belts, and lifts. It is also suitable for use in HVAC systems and other environmental controls.

Working Principle

The D4JL-2RFA-D7-01 has a simple mechanical design and operates in two directions of motion. The switch is triggered by the contact arm, which movement is caused by an actuator. When the actuator comes in contact with the contact arm, the switch is triggered. The switch will then open or close depending on the direction of motion. There are two electrical circuits, one for each direction of motion, so the switch is able to sense motion in both directions.

When the switch is in the “off” position, the contact arm is held in place by a spring. When the actuator moves the contact arm, it pushes the contact arm past a snapping point, allowing the spring to release and the contact arm to travel either up or down. The distance the contact arm travels is determined by the set point of the switch. When the arm reaches the set point, the switch is triggered and the circuit is opened or closed.

The D4JL-2RFA-D7-01 is designed to be fail-safe in the event of power failure. The switch will always open or close the circuit, depending on its position. This eliminates the risk of an interrupted power supply causing the system to go into a dangerous state. The D4JL-2RFA-D7-01 is also designed to be dust-proof, making it suitable for use in harsh industrial environments.