LRC5A25 IMO Limit Switch, Compact Sealed Coiled Spring

Why Choose the IMO LRC5A25 Limit Switch?

The IMO LRC5A25 is a compact industrial limit switch designed for mechanical position, presence and end-of-travel detection in machinery and automated systems. Part of the IMO LR series, it combines a durable technopolymer body with a sealed coiled spring actuator, providing flexible mechanical actuation where precise alignment with a rigid plunger or lever may be impractical.

The flexible coiled spring actuator can be deflected by passing products, moving machine components and mechanical stops from different directions. This makes the LRC5A25 particularly suitable for applications where the position of the target can vary, while its 1NO + 1NC snap-action contacts provide rapid and repeatable electrical switching for machine control and position feedback.

The LRC5A25 features an IP67 rated, double-insulated technopolymer enclosure and a single PG13.5 conduit entry. With a mechanical endurance of up to 20,000,000 operating cycles, an operating temperature range of -25 to +80 °C and a maximum operating frequency of 3,600 operations per hour, it provides a durable sensing solution for repetitive industrial applications.

Key Advantages

• Sealed coiled spring actuator provides flexible mechanical position detection.
• Suitable for applications where exact alignment with a rigid actuator may vary.
• 1NO + 1NC contact configuration provides both normally open and normally closed signalling.
• Snap-action switching mechanism provides rapid and repeatable contact operation.
• IP67 protection rating supports installation in demanding industrial environments.
• High mechanical endurance of up to 20,000,000 operating cycles.

Key Features

• IMO LR series compact plastic body limit switch.
• Sealed coiled spring actuator.
• 1 normally open + 1 normally closed contact.
• Snap-action contact mechanism.
• IP67 rated enclosure.
• 10 A maximum current rating.
• 400 V maximum voltage rating.
• Operating torque of approximately 0.12 Nm.
• Mechanical endurance up to 20,000,000 operations.
• Maximum operating frequency of 3,600 operations per hour.
• Single PG13.5 conduit entry with screw-terminal connection.

Flexible Position Detection with a Sealed Coiled Spring

The IMO LRC5A25 uses a flexible coiled spring actuator rather than a rigid piston or roller lever. When a moving object deflects the spring, the actuator operates the internal snap-action contacts, allowing the switch to provide position or presence signals to PLCs, relays, contactors and other industrial control equipment.

The flexible spring arrangement is particularly useful where the detected component may approach from different directions or where some variation in target position is expected. Combined with its sealed actuator, IP67 enclosure and high mechanical endurance, the LRC5A25 provides dependable repetitive sensing for automated machinery and material handling systems.

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.