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FR 9A4-K21 Pizzato Position switch with plunger, external gasket and roller
Pizzato FR9A4-K21 safety limit switch with one-way roller plunger actuator, dual NC contacts and IP67 protection for industrial automation and machine safety applications.
£9.43
Why Choose the Pizzato FR9A4-K21 Safety Limit Switch?
The Pizzato FR9A4-K21 is a robust safety limit switch designed for precise position detection and reliable machine safety in industrial automation systems. As part of the durable Pizzato FR series, it offers dependable switching performance in demanding environments where safety and consistency are critical.
This model features a plunger actuator with external gasket and one-way roller, allowing smooth mechanical engagement while protecting internal components against dust and moisture ingress. Its technopolymer housing ensures long service life and resistance to industrial wear.
With a dual normally closed (2 NC) contact configuration and slow-action switching, the FR9A4-K21 is ideal for fail-safe safety circuits, machine guarding and industrial automation systems requiring reliable position feedback.
Key Advantages
- Reliable safety limit switch for industrial automation.
- 2 NC safety contacts for fail-safe circuit design.
- Precision one-way roller plunger actuator.
- Durable technopolymer housing for long operational life.
- IP67 protection rating for harsh environments.
- Consistent performance under repetitive operation.
Key Features
- Pizzato FR series position / safety switch.
- Plunger actuator with one-way roller and external gasket.
- Slow-action switching mechanism.
- 2 NC contact configuration for safety applications.
- Technopolymer housing with zinc-plated steel components.
- PG13.5 conduit entry with cable gland support.
- Silver contacts for reliable electrical performance.
- Designed for industrial automation and safety systems.
Reliable Position Detection for Machine Safety
The Pizzato FR9A4-K21 is designed to monitor the position of moving machine components and provide reliable feedback to control systems. Its one-way roller actuator allows controlled directional operation, reducing mechanical stress while ensuring precise switching performance.
The FR series is widely used in industrial automation due to its durability, flexibility and proven reliability in harsh environments where accurate position detection is essential for safe operation.
Typical Applications
- Machine guarding and safety interlock systems.
- Industrial automation and production machinery.
- Packaging and conveyor systems.
- Directional position monitoring applications.
- Robotics and automated handling equipment.
- OEM machinery and control panels.
Technical Specifications
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| Device Type | Limit switch | |
|---|---|---|
| Housing Material | Technopolymer | |
| IP Rating | IP67 | |
| Contacts | 2NC | |
| Actuator Type | Roller plunger | |
| Connection | PG13.5 cable entry | |
| Series | FR Position / Safety Switches | |
| Product type | Safety limit / position switch | |
| Actuator type | One-way roller plunger with external gasket | |
| Contact configuration | 2 NC | |
| Switching type | Slow action | |
| Rated voltage | up to 250 V AC | |
| Rated current | up to 10 A | |
| Protection rating | IP67 | |
| Housing material | Technopolymer | |
| Connection | PG13.5 | |
| Operating temperature | approx. minus 25 to plus 80 °C | |
| Mounting type | Surface mounting | |
| HS Code | 85369095 |
Frequently Asked Questions
What is the Pizzato FR9A4-K21 used for?
This switch is used to detect the position of machine components and provide feedback to safety and control systems in industrial automation.
What makes the K21 version different?
The K21 variant features a one-way roller actuator, allowing directional actuation for specific mechanical applications.
What contact configuration does it have?
The FR9A4-K21 includes 2 normally closed (NC) contacts, suitable for fail-safe safety circuits.
Is it suitable for harsh environments?
Yes, with an IP67 protection rating, it is designed for reliable use in demanding industrial environments.
What voltage and current ratings does it support?
The switch supports up to 250 V AC and 10 A, depending on application conditions.
Trusted by Industrial Engineers Worldwide
Pizzato FR series limit switches are trusted across industries for delivering reliable safety performance, precise detection and long-term durability in industrial automation systems.
