LRC5A20 IMO Limit Switch, Compact Sealed Coil Spring + Rod

Why Choose the IMO LRC5A20 Limit Switch?

The IMO LRC5A20 is a compact industrial limit switch designed for mechanical position detection, end-of-travel sensing and machine control applications. Part of the IMO LR series, it combines a compact technopolymer body with a sealed coil spring and rod actuator, providing flexible multidirectional actuation for industrial automation and machinery.

Unlike a rigid plunger actuator, the coil spring and rod can respond to contact from moving machine components where precise actuator alignment may be difficult. The sealed actuator assembly and flexible spring construction make the LRC5A20 particularly useful for detecting passing objects, irregular movement and machine components approaching from different directions.

The LRC5A20 incorporates 1NO + 1NC snap-action contacts, an IP67 rated double-insulated technopolymer enclosure and a single PG13.5 conduit entry. With an operating temperature range of -25 to +80 °C and a mechanical endurance of up to 20,000,000 operating cycles, it provides a durable position sensing solution for demanding industrial installations.

Key Advantages

• Sealed coil spring and rod actuator provides flexible mechanical position detection.
• Suitable for applications where precise alignment with a rigid actuator is impractical.
• 1NO + 1NC snap-action contacts provide rapid and repeatable switching.
• IP67 protection rating supports use in demanding industrial environments.
• Double-insulated technopolymer housing provides durable compact construction.
• Mechanical endurance of up to 20,000,000 operating cycles supports repetitive machine operation.

Key Features

• IMO LR series compact plastic body limit switch.
• Sealed coil spring and rod actuator with external rubber gasket.
• 1 normally open + 1 normally closed contact.
• Snap-action switching mechanism.
• IP67 rated enclosure.
• 500 V AC rated insulation voltage.
• Mechanical endurance up to 20,000,000 operations.
• Maximum actuation frequency of 3,600 operating cycles per hour.
• Operating temperature range of -25 to +80 °C.
• Single PG13.5 conduit entry with screw-terminal connection.

Flexible Position Detection with a Spring Rod Actuator

The IMO LRC5A20 uses a flexible coil spring and rod rather than a rigid piston or roller lever. When a moving object contacts and deflects the rod, the actuator operates the internal snap-action contacts, enabling the switch to signal a PLC, relay, contactor or other machine control device.

The flexible actuator makes this configuration particularly useful where objects may vary slightly in position or approach the sensing point from different directions. Combined with the sealed actuator assembly, IP67 enclosure and high mechanical endurance, the LRC5A20 provides dependable repetitive position detection for automated machinery and material handling equipment.

Typical Applications

• Machine position and end-of-travel detection.
• Industrial conveyors and material handling systems.
• Detection of passing products and machine components.
• Packaging and production machinery.
• Automated manufacturing equipment.
• OEM automation systems and machine building.