Why Choose the Pizzato FD551-K21 Position Limit Switch?
The Pizzato FD551-K21 is a robust position limit switch with roller lever actuator, designed for precise detection and reliable operation in industrial automation systems. As part of the heavy-duty Pizzato FD series, it delivers consistent switching performance, high durability and long service life in demanding environments.
Built with a rugged metal housing and a technopolymer roller lever actuator, the FD551-K21 is engineered to withstand vibration, dust and temperature fluctuations typical of industrial applications. Its compact rotating head enables flexible mounting and accurate positioning within machinery.
This model features a 1 NO + 1 NC snap-action contact configuration with positive opening, making it suitable for both control and safety applications. The K21 variant 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.
- 1 NO + 1 NC contacts for control and safety functions.
- Positive opening NC contact for enhanced safety reliability.
- Pre-fitted cable gland (K21) for faster installation.
- Durable metal housing for harsh environments.
- IP67 protection rating for dust and water resistance.
Key Features
- Pizzato FD series position switch.
- 1 NO + 1 NC snap-action contacts.
- Positive opening safety function.
- Technopolymer roller lever actuator (Ø20 mm).
- Metal enclosure for industrial durability.
- PG13.5 conduit entry with assembled cable gland.
- Optimised for quick wiring and secure sealing.
- Suitable for industrial automation systems.
Reliable Position Detection for Industrial Automation
The Pizzato FD551-K21 is designed for accurate position detection of moving machine components. 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 enhances sealing, making this variant particularly suitable for environments where reliability and rapid commissioning are essential.
Typical Applications
- Industrial machinery and automation systems.
- End-of-travel and position detection.
- Safety guards and interlocking systems.
- Conveyor and material handling equipment.
- Packaging and production machinery.
- General industrial limit switching.
