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FX 21A4 Pizzato Position switch with plunger, external gasket and roller
Pizzato FX21A4 position limit switch with plunger actuator and roller, technopolymer housing, IP67 protection and 3 NC contacts with positive opening for industrial safety and automation.
£12.71
Why Choose the Pizzato FX21A4 Position Limit Switch?
The Pizzato FX21A4 is a heavy-duty industrial position limit switch designed for precise detection of mechanical movement and reliable safety monitoring in automation systems. As part of the robust Pizzato FX series, it is engineered for long-term durability and consistent switching performance in demanding industrial environments.
This model features a plunger actuator with external gasket and roller, providing smooth and repeatable actuation even under continuous mechanical stress. Its rugged technopolymer housing offers excellent resistance to vibration, wear and environmental exposure, ensuring dependable operation in harsh conditions.
With a 3 NC slow-action contact configuration and integrated positive opening operation, the FX21A4 is specifically suited for safety-related applications, enabling secure machine shutdown and reliable interlocking in industrial systems.
Key Advantages
- Reliable limit switch for industrial safety and position detection.
- 3 NC contacts ideal for safety circuit integration.
- Positive opening operation for enhanced machine safety.
- Plunger actuator with roller ensures smooth and accurate actuation.
- Durable technopolymer housing for extended service life.
- IP67 protection rating for resistance to dust and moisture.
Key Features
- Pizzato FX series position switch.
- Model: FX21A4
- Actuator type: Plunger with external gasket and roller.
- Contact configuration: 3 NC slow action.
- Positive opening operation compliant with EN 60947-5-1.
- Housing material: Technopolymer.
- Conduit entries: 2 × PG13.5.
- Designed for safety and industrial automation applications.
Reliable Position Detection and Machine Safety
Limit switches such as the Pizzato FX21A4 are critical components in industrial safety systems. They monitor the position of moving machine parts and provide accurate feedback to control systems, ensuring machinery operates only under safe conditions.
Thanks to its positive opening contacts and robust construction, the FX21A4 is particularly suited for safety circuits and interlocking systems where fail-safe operation is essential. Its sealed design ensures reliable performance even in dusty, humid or vibration-prone environments.
Typical Applications
- Machine safety and interlocking systems.
- Industrial automation and control systems.
- Conveyor and material handling equipment.
- Packaging and processing machinery.
- Position monitoring of moving mechanical parts.
- OEM machinery and production lines.
Technical Specifications
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| Device Type | Limit switch | |
|---|---|---|
| Housing Material | Technopolymer | |
| Switching Action | Slow action | |
| IP Rating | IP67 | |
| Actuator Type | Roller plunger | |
| Positive Opening | Yes | |
| Connection | PG13.5 cable entry | |
| Series | FX Series | |
| Product type | Position / safety limit switch | |
| Actuator | Plunger with external gasket and roller | |
| Contact type | 3 NC slow action | |
| Positive opening | Yes | |
| Housing | Technopolymer | |
| Protection rating | IP67 | |
| Conduit entries | 2 × PG13.5 | |
| Operating temperature | approx. −25 °C to +80 °C | |
| Contact material | Silver | |
| Mounting type | Machine / panel mounting | |
| HS Code | 85369095 |
Frequently Asked Questions
What is the Pizzato FX21A4 used for?
This limit switch is used for position detection and safety monitoring in industrial machinery and automation systems.
What contact configuration does it have?
The FX21A4 features 3 normally closed slow-action contacts, making it ideal for safety applications.
What does positive opening mean?
Positive opening ensures that the safety contacts are mechanically forced open, improving reliability in safety circuits.
Is it suitable for harsh environments?
Yes, with an IP67 rating and durable housing, it performs reliably in demanding industrial conditions.
What is the operating temperature range?
The switch typically operates between approximately −25 °C and +80 °C.
Trusted by Industrial Automation Professionals
Pizzato FX series limit switches are widely trusted for their durability, precision and consistent performance in industrial automation and machine safety applications.
