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KBF4L20 – ADJ RUBBER ROLLER LEVER 2NO SLOW BREAK
Lovato KBF4L20 is an IP65 thermoplastic limit switch with an adjustable rubber roller lever, 2NO slow-action contacts and a bottom M20 cable entry.
£30.64
Why Choose the Lovato KBF4L20 Limit Switch?
The Lovato KBF4L20 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 slow-action contacts, providing two normally open contacts for machine-control, sequencing and status-signalling circuits. 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 KBF4L20 uses a double-insulated thermoplastic housing with IP65 body protection and a bottom M20 cable entry. Its compact construction, self-releasing screw terminals and adjustable operating head make it suitable for reliable mechanical position detection in demanding industrial applications.
Key Advantages
- Adjustable roller-lever limit switch for industrial machinery.
- 2NO slow-action contacts support control and signalling circuits.
- 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 contacts.
- 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 KBF4L20 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 both normally open contacts according to actuator travel. The combination of dual NO contacts, standardised dimensions and an adjustable operating head makes the KBF4L20 suitable for machine sequencing, end-of-travel detection and equipment-status signalling.
Typical Applications
- Machine position and end-of-travel detection.
- Conveyors and material-handling systems.
- Automated sequencing and status signalling.
- Packaging and processing machinery.
- Automated production and assembly equipment.
- Cams, lifts and moving mechanical components.
Technical Specifications
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| Device Type | Limit switch | |
|---|---|---|
| Switching Action | Slow action | |
| Contacts | 2NO | |
| Actuator Type | Roller lever | |
| Housing Material | Plastic | |
| Connection | M20 cable entry | |
| HS Code | 85365080 | |
| Manufacturer | Lovato Electric | |
| Series | K | |
| Model | KBF4L20 | |
| Product type | Industrial limit switch | |
| Actuator | Adjustable roller lever | |
| Roller material | Rubber | |
| Roller configuration | Offset alignment | |
| Contact configuration | 2NO | |
| Contact action | Slow action | |
| Thermal current | 10 A | |
| IEC/EN 60947-5-1 designation | A600 / Q600 | |
| Rated insulation voltage | 690 V | |
| Rated impulse withstand voltage | 6 kV | |
| Insulation class | Class II | |
| Average resistance per pole | Less than 10 mΩ | |
| Switching speed | 0.5–1.5 m/s | |
| Operating torque | 3 Ncm | |
| Cable connection | Self-releasing screw terminals | |
| Conductor capacity | 1.5–2.5 mm² | |
| Cable entry | M20, bottom entry | |
| Housing material | Polymer thermoplastic | |
| Housing protection rating | IP65 | |
| Terminal protection rating | IP20 | |
| Operating temperature | -25 °C to +70 °C | |
| Storage temperature | -40 °C to +70 °C | |
| Maximum operating frequency | 3,600 cycles/hour | |
| Pollution degree | 3 | |
| Weight | 150 g | |
| Dimensional standard | EN 50047 |
Frequently Asked Questions
What is the Lovato KBF4L20 used for?
The KBF4L20 detects the position or movement of components in industrial machinery and closes its normally open contacts when actuated.
What type of actuator does the KBF4L20 have?
It has an adjustable roller lever with a rubber roller and offset alignment for adaptable mechanical actuation.
What contacts are included?
The switch has 2NO slow-action contacts, comprising two normally open contacts for control and signalling circuits.
What cable entry does the KBF4L20 use?
The KBF4L20 has one bottom M20 cable entry and self-releasing screw terminals for conductor connection.
What environmental protection does the switch provide?
The thermoplastic body housing provides IP65 protection, while the terminals are rated IP20.
Trusted Industrial Control from Lovato Electric
Lovato Electric K series limit switches provide adaptable and reliable position detection through standardised dimensions, durable industrial housings and a wide selection of actuator and contact configurations.
