FR 21A1-M2K40 Pizzato Position switch with short piston plunger, external gasket

FR 21A1-M2K40 Pizzato Position switch with short piston plunger, external gasket

Pizzato FR21A1-M2K40 limit switch with short piston plunger, 3NC contacts, IP67 protection, M20 entry and M12 connector for industrial safety and automation applications.

SKU: FR21A1-M2K40Alt SKU: FR21A1M2K40MPN: FR 21A1-M2K40
Price
List Price £29.36 ex VAT
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Why Choose the Pizzato FR21A1-M2K40 Limit Switch?

The Pizzato FR21A1-M2K40 is a heavy-duty limit switch with short piston plunger actuator, engineered for precise position detection and safety monitoring in industrial automation systems. As part of the robust Pizzato FR series, it delivers consistent switching performance for demanding machine control and safety applications.

Built with a durable technopolymer housing and high-quality internal components, this model ensures long-term reliability even in harsh industrial environments. Its compact footprint allows easy installation in machinery, conveyors and control panels where durability and dependable operation are essential.

This advanced variant features a short piston plunger with external gasket, 3 normally closed contacts and a M20 x 1.5 conduit entry combined with an integrated M12 metal connector (8-pole). With positive opening contacts, slow-action switching and an operating temperature range of approximately -25 to +80 °C, it is ideal for safety-critical applications.

Key Advantages

  • Reliable position detection for industrial machinery.
  • 3 NC contacts for enhanced safety circuit design.
  • Integrated M12 connector for fast, secure installation.
  • Positive opening contacts for safety compliance.
  • IP67 protection rating for resistance to dust and moisture.
  • Compact and durable technopolymer construction.

Key Features

  • Pizzato FR series limit switch.
  • Short piston plunger actuator with external gasket.
  • 3 NC contact configuration.
  • Slow-action switching mechanism.
  • M20 x 1.5 cable entry with integrated M12 metal connector (8-pole).
  • Positive opening contacts for safety circuits.
  • Silver contacts for reliable electrical performance.

Precise Position Detection for Industrial Automation

Limit switches such as the Pizzato FR21A1-M2K40 detect the position of moving machine components and convert mechanical motion into electrical signals. This enables control systems to monitor machine states, trigger operations or safely stop equipment when required.

The FR series is widely used across industrial automation due to its reliability, compact design and versatility. Its plunger actuator is particularly suited for applications requiring accurate linear actuation and repeatable switching performance.

Typical Applications

  • Position detection in industrial machinery.
  • End-of-travel monitoring for moving components.
  • Safety circuits requiring multiple NC contacts.
  • Packaging and processing equipment.
  • Conveyor systems and material handling.

Technical Specifications

IP Rating IP67
Series FR Series
Product type Limit / position switch
Actuator type Short piston plunger with gasket
Contact configuration 3 NC
Switching type Slow-action
Rated current up to 10 A
Rated voltage up to 250 V AC
Protection rating IP67
Connection type M20 x 1.5 conduit entry + M12 connector (8-pole)
Operating temperature approx. -25 to +80 °C
Housing material Technopolymer
Positive opening Yes
HS Code 85369095
Contacts 3NC
Actuator Type Plunger
Housing Material Plastic
Positive Opening Yes
Connection M12 connector

Frequently Asked Questions

What is the Pizzato FR21A1-M2K40 used for?

This limit switch is used to detect the position of moving machine parts and provide safety and control signals.

What contact configuration does this model have?

The FR21A1-M2K40 features 3 normally closed (NC) contacts, ideal for safety circuits.

What is the benefit of the M2K40 version?

It combines an M20 conduit entry with an integrated M12 connector, allowing flexible and fast installation.

Is this switch suitable for safety applications?

Yes, it includes positive opening contacts, making it suitable for safety-critical systems.

Is the FR21A1-M2K40 suitable for harsh environments?

Yes, with an IP67 protection rating, it is designed for environments with dust and moisture exposure.

Trusted by Automation Engineers

Pizzato FR series limit switches are widely used in industrial automation for accurate position sensing, helping engineers achieve reliable machine control and enhanced operational safety.

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We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products. 

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