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FM 21A4-M2 Pizzato Position switch with plunger, external gasket and roller
Pizzato FM21A4-M2 industrial position switch with plunger and roller actuator, 3 NC contacts, slow action switching and IP67 protection for automation systems.
£14.72
Why Choose the Pizzato FM21A4-M2 Position Switch?
The Pizzato FM21A4-M2 is a heavy-duty industrial position switch designed for precise detection of mechanical movement in automation and machinery systems. As part of the proven Pizzato FM series, it delivers dependable switching performance and long service life in demanding industrial environments.
Constructed with a rugged metal housing, the FM21A4-M2 is engineered to withstand harsh operating conditions while maintaining consistent performance. Its plunger actuator with external gasket and roller ensures smooth and repeatable actuation, making it ideal for cam-driven systems, conveyors and automated production machinery.
This model features a 3 NC contact configuration with slow-action switching and positive opening contacts, providing enhanced safety and reliability in control circuits. The inclusion of an M20 × 1.5 conduit entry and IP67 protection rating ensures excellent resistance to dust and moisture in industrial installations.
Key Advantages
- Reliable position detection for industrial automation.
- Plunger actuator with roller for precise linear triggering.
- 3 NC contacts ideal for safety and monitoring circuits.
- Positive opening contacts for enhanced safety reliability.
- Durable metal housing for long-term industrial use.
- IP67 protection rating for harsh environments.
Key Features
- Pizzato FM series position switch.
- Plunger actuator with external gasket and roller.
- 3 normally closed (NC) contacts.
- Slow-action switching mechanism.
- Positive opening safety contacts.
- Metal housing construction.
- M20 × 1.5 threaded conduit entry.
- Designed for continuous industrial operation.
Reliable Position Detection in Industrial Systems
Position switches such as the FM21A4-M2 are widely used to monitor movement and end-of-travel positions in industrial machinery. They provide accurate feedback to control systems, improving operational efficiency and ensuring safe machine operation.
The combination of slow-action switching and positive opening contacts ensures dependable performance in safety circuits, while the plunger and roller actuator provides smooth and consistent mechanical engagement for high-cycle applications.
Typical Applications
- Industrial machinery and automation systems.
- Conveyor and material handling equipment.
- Cam-operated and linear motion detection systems.
- Packaging and processing machines.
- Production lines and assembly systems.
- Safety and control circuits.
Technical Specifications
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| Device Type | Limit switch | |
|---|---|---|
| Switching Action | Slow action | |
| IP Rating | IP67 | |
| Contacts | 3NC | |
| Actuator Type | Roller plunger | |
| Housing Material | Metal | |
| Positive Opening | Yes | |
| Connection | M20 cable entry | |
| Series | FM Series | |
| Product type | Position / limit switch | |
| Contact configuration | 3 NC | |
| Switching action | Slow action | |
| Positive opening | Yes | |
| Actuator type | Plunger with external gasket and roller | |
| Housing material | Metal | |
| Protection rating | IP67 (EN 60529) | |
| Cable entry | M20 × 1.5 | |
| Thermal current | 10 A | |
| Rated insulation voltage | up to 500 V | |
| Mounting | Surface / machine mounting | |
| Reset function | Without reset | |
| HS Code | 85369095 |
Frequently Asked Questions
What is the Pizzato FM21A4-M2 used for?
This switch is used to detect position or movement in industrial machinery and automation systems.
What type of actuator does this switch use?
It uses a plunger actuator with roller for precise linear and cam-driven actuation.
What contact configuration does the FM21A4-M2 have?
The switch includes 3 normally closed (NC) contacts, typically used in safety circuits.
What is positive opening?
Positive opening ensures contacts are mechanically forced open, improving reliability in safety applications.
Is the FM21A4-M2 suitable for harsh environments?
Yes, it features a metal housing and IP67 protection rating, making it suitable for demanding industrial conditions.
Trusted by Industrial Engineers Worldwide
Pizzato position switches are trusted across industrial automation for their durability, safety performance and consistent operation in demanding environments.
