Why Choose the Lovato KBF4L21 Limit Switch?
The Lovato KBF4L21 is an industrial K series limit switch with an adjustable roller lever, designed for position detection and motion monitoring in machinery and automated equipment. Its dimensions conform to EN 50047, supporting straightforward integration into standard industrial installations.
This limit switch features 2NO+1NC slow-action contacts, providing two normally open contacts and one normally closed contact for machine control, monitoring and sequencing. The adjustable lever incorporates a rubber roller with offset alignment, allowing the actuator position to be adapted to the movement and geometry of the machine.
The KBF4L21 uses a double-insulated thermoplastic housing with IP65 body protection and a bottom M20 cable entry. Its three-contact configuration, self-releasing screw terminals and adjustable operating head make it suitable for versatile mechanical position detection in demanding industrial applications.
Key Advantages
- Adjustable roller-lever limit switch for industrial machinery.
- 2NO+1NC slow-action contacts support control, monitoring and signalling.
- Rubber roller with offset alignment for adaptable mechanical actuation.
- IP65 thermoplastic housing provides protection against dust and water jets.
- EN 50047 dimensions simplify installation and replacement.
- Bottom M20 cable entry supports convenient machine wiring.
Key Features
- Lovato K series industrial limit switch.
- Adjustable roller-lever actuator.
- Rubber roller with offset alignment.
- 2 normally open and 1 normally closed contact.
- Slow-action contact operation.
- Double-insulated polymer thermoplastic housing.
- Locking bayonet operating-head insert.
- Self-releasing screw terminals.
- M20 bottom cable entry.
Reliable Position Detection for Industrial Machinery
Limit switches convert the physical movement of a machine component into an electrical contact signal. The adjustable lever on the Lovato KBF4L21 allows the roller position to be configured for contact with cams, conveyors and other moving parts, while the rubber roller provides a resilient actuation surface.
Its slow-action mechanism changes the two normally open contacts and one normally closed contact according to actuator travel. This three-contact arrangement enables multiple control or signalling functions to be operated from a single mechanical position switch.
Typical Applications
- Machine position and end-of-travel detection.
- Conveyors and material-handling systems.
- Automated sequencing and status monitoring.
- Packaging and processing machinery.
- Automated production and assembly equipment.
- Cams, lifts and moving mechanical components.
