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FD 251-K21 Pizzato Position switch with roller lever
Pizzato FD251-K21 position limit switch with roller lever actuator, dual snap-action contacts (2 x 1 NO + 1 NC), metal housing and integrated cable gland for industrial automation applications.
£22.61
Why Choose the Pizzato FD251-K21 Position Limit Switch?
The Pizzato FD251-K21 is a heavy-duty position limit switch with roller lever actuator, designed for precise detection and dependable control in industrial automation systems. As part of the durable Pizzato FD series, it provides reliable switching performance, robust construction and long service life in demanding environments.
Built with a rugged metal housing and a technopolymer roller lever actuator, the FD251-K21 is engineered to withstand vibration, dust and temperature variations typical in industrial applications. Its compact rotating head ensures flexible installation and accurate alignment with moving machine components.
This model features a 2 × (1 NO + 1 NC) snap-action contact configuration, offering dual-circuit capability for advanced control and signalling. Unlike standard variants, the K21 version includes a pre-assembled cable gland for 6–12 mm cable diameters, simplifying installation and improving sealing performance.
Key Advantages
- Heavy-duty position limit switch for industrial machinery.
- Dual contact blocks (2 × 1 NO + 1 NC) for flexible control circuits.
- Snap-action switching for fast and reliable operation.
- Pre-fitted cable gland (K21) for quick installation.
- Durable metal housing for harsh environments.
- IP67 protection rating for dust and water resistance.
Key Features
- Pizzato FD series position switch.
- 2 contact blocks (1 NO + 1 NC each).
- Snap-action contacts for rapid switching.
- Technopolymer roller lever actuator (20 mm).
- Metal enclosure for industrial durability.
- PG13.5 conduit entry with assembled cable gland.
- Optimised for quick wiring and installation.
- Suitable for industrial automation systems.
Reliable Position Detection for Industrial Automation
The Pizzato FD251-K21 is designed to detect the position of moving machine parts with high precision. Its roller lever actuator ensures smooth engagement and reduced wear, while snap-action contacts provide fast and repeatable switching performance.
The integrated cable gland simplifies installation and improves sealing, making this variant particularly suitable for environments where quick commissioning and cable protection are critical.
Typical Applications
- Industrial machinery and automation systems.
- End-of-travel and position detection.
- Conveyor and material handling equipment.
- Packaging and production machinery.
- Multi-circuit control and signalling applications.
- General industrial limit switching.
Technical Specifications
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| Device Type | Limit switch | |
|---|---|---|
| Switching Action | Snap action | |
| IP Rating | IP67 | |
| Contacts | 1NO + 1NC | |
| Actuator Type | Roller lever | |
| Housing Material | Metal | |
| Connection | PG13.5 cable entry | |
| Series | FD Series | |
| Product type | Position limit switch | |
| Contact configuration | 2 × (1 NO + 1 NC) | |
| Contact type | Snap-action | |
| Actuator type | Roller lever (technopolymer) | |
| Housing material | Metal | |
| Connection type | Cable entry (PG13.5 with gland) | |
| Cable range | approx. 6–12 mm | |
| Protection rating | IP67 | |
| Operating temperature | approx. -25 °C to +80 °C | |
| Contact material | Silver contacts | |
| Mechanical life | high durability, millions of cycles | |
| Mounting type | Surface / machine mounting | |
| HS Code | 85369095 |
Frequently Asked Questions
What is the Pizzato FD251-K21 used for?
It is used to detect the position of moving parts and provide control signals in industrial machinery and automation systems.
What contact configuration does it have?
The FD251-K21 features 2 sets of contacts (each 1 NO + 1 NC), enabling dual circuit control.
What makes the K21 variant different?
The K21 version includes a pre-assembled cable gland for 6–12 mm cables, simplifying installation and improving sealing.
What type of switching does it use?
This model uses snap-action contacts for fast and reliable switching performance.
Is it suitable for harsh environments?
Yes, the metal housing and IP67 protection rating ensure reliable operation in demanding industrial conditions.
Trusted by Industrial Engineers Worldwide
Pizzato FD series limit switches are widely trusted for their rugged construction, precise switching and dependable performance across industrial automation systems.
