FM 551-K21 Pizzato Position switch with roller lever

FM 551-K21 Pizzato Position switch with roller lever

Pizzato FM551-K21 position switch with roller lever actuator, 1NO+1NC snap action contacts and IP67 metal housing for industrial automation applications.

SKU: FM551-K21Alt SKU: FM551K21MPN: FM 551-K21
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List Price £16.60 ex VAT
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Why Choose the Pizzato FM551-K21 Position Switch?

The Pizzato FM551-K21 is a reliable industrial position switch designed for accurate mechanical position detection in automation, machinery and control applications. Part of the robust Pizzato FM series, this switch combines a metal housing, roller lever actuator and snap action contacts to provide dependable operation in demanding industrial environments.

The FM551-K21 features a rotating lever with central technopolymer roller and a 1NO+1NC snap action contact block, making it suitable for machine position monitoring, limit detection and safety-related switching applications.

With an IP67 protection rating, positive opening operation and durable metal enclosure, the Pizzato FM551-K21 is designed for reliable installation on industrial machinery where accurate mechanical switching and long service life are required.

Key Advantages

  • Compact industrial position switch for automation applications.
  • Metal housing for reliable operation in industrial environments.
  • 1NO+1NC snap action contacts for flexible control and monitoring circuits.
  • IP67 protection rating for resistance against dust and water ingress.
  • Roller lever actuator enables reliable mechanical detection.
  • Suitable for machinery, OEM equipment and industrial control systems.

Key Features

  • Pizzato FM series position switch.
  • Model: FM551-K21.
  • Rotating lever actuator with central roller.
  • 20 mm diameter technopolymer roller.
  • 1NO+1NC snap action contact configuration.
  • PG13.5 cable entry.
  • Positive opening function for safety applications.
  • Metal block-style housing design.

Reliable Position Detection for Industrial Machinery

Position switches such as the Pizzato FM551-K21 provide accurate mechanical feedback by detecting the movement or position of machine components. They are commonly used to monitor mechanical travel, machine cycles and equipment positioning within automated systems.

The FM series is designed for industrial automation applications requiring robust construction, dependable switching performance and straightforward integration into electrical control circuits.

Typical Applications

  • Industrial machinery and automation equipment.
  • Machine limit and position detection.
  • Conveyor and material handling systems.
  • Packaging and production machinery.
  • OEM machine building applications.
  • Industrial control panels and safety-related systems.

Technical Specifications

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Device Type Limit switch
Switching Action Snap action
Contacts 1NO + 1NC
IP Rating IP67
Actuator Type Roller lever
Housing Material Metal
Positive Opening Yes
Connection PG13.5 cable entry
HS Code 85369095
Manufacturer Pizzato Elettrica
Series FM Position Switches
Model FM551-K21
Product type Position switch / limit switch
Actuator type Rotating roller lever
Roller material Technopolymer
Roller diameter 20 mm
Contact configuration 1NO+1NC snap action
Connection PG13.5 cable entry
Protection rating IP67
Housing material Metal
Positive opening Yes

Frequently Asked Questions

What is the Pizzato FM551-K21 used for?

The Pizzato FM551-K21 is used for mechanical position detection and limit switching on industrial machinery and automation equipment.

What type of actuator does the FM551-K21 have?

The FM551-K21 uses a rotating lever actuator with a central technopolymer roller measuring 20 mm in diameter.

What contact configuration does this position switch use?

The switch uses a 1NO+1NC snap action contact block suitable for industrial control and monitoring circuits.

What protection rating does the FM551-K21 provide?

The FM551-K21 has an IP67 protection rating according to EN 60529, providing protection against dust and water ingress.

Is the FM551-K21 suitable for safety applications?

The FM551-K21 includes positive opening operation and is suitable for applications where reliable machine monitoring is required.

Trusted for Industrial Automation

Pizzato FM position switches are widely used by machine builders and automation engineers to provide dependable mechanical detection and reliable control feedback in industrial equipment.