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FD 557-K21 Pizzato Position switch with roller lever
Pizzato FD557-K21 position limit switch with roller lever, metal housing, IP67 protection, integrated cable gland and 1NO+1NC snap-action contacts for industrial automation.
£18.84
Why Choose the Pizzato FD557-K21 Position Limit Switch?
The Pizzato FD557-K21 is a robust position limit switch designed for precise detection and dependable control in industrial automation systems. As part of the heavy-duty Pizzato FD series, it features a roller lever actuator with a technopolymer roller, enabling smooth and accurate actuation of moving machine components.
Built with a durable metal housing, the FD557-K21 ensures long service life under continuous mechanical stress. It incorporates a reliable 1 normally open (NO) and 1 normally closed (NC) snap-action contact configuration, providing fast and consistent switching for control and signalling applications.
This variant includes a pre-assembled cable gland (K21 version) suitable for cable diameters between 6–12 mm, simplifying installation and improving sealing performance. Combined with an IP67 protection rating, it is ideal for use in environments exposed to dust, moisture and vibration.
Key Advantages
- Heavy-duty industrial limit switch for harsh environments.
- Roller lever actuator for smooth and precise positioning.
- 1NO + 1NC contacts for flexible control and signalling.
- Snap-action switching ensures fast response and reliability.
- Integrated cable gland (K21) simplifies installation.
- IP67 protection for resistance to dust and water ingress.
Key Features
- Pizzato FD series position switch.
- 1 normally open and 1 normally closed contact, snap-action switching.
- Roller lever actuator with technopolymer roller.
- Metal housing with high mechanical strength.
- PG13.5 cable entry with integrated gland (6–12 mm cable range).
- IP67 protection rating (EN 60529).
- Silver alloy contacts for reliable electrical performance.
Reliable Position Detection for Industrial Machinery
The Pizzato FD557-K21 is designed to monitor movement and position within industrial machinery, ensuring accurate control and dependable switching. Its snap-action mechanism provides rapid contact switching regardless of actuation speed, improving reliability in dynamic automation environments.
The integrated cable gland simplifies installation and enhances sealing, making it particularly suitable for applications where quick wiring and environmental protection are critical.
Typical Applications
- Industrial automation and production lines.
- Conveyor and material handling systems.
- Packaging and assembly machinery.
- Position detection in moving machine parts.
- OEM machinery and control panels.
- Harsh environments requiring sealed cable entry solutions.
Technical Specifications
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| Device Type | Limit switch | |
|---|---|---|
| IP Rating | IP67 | |
| Contacts | 1NO + 1NC | |
| Actuator Type | Roller lever | |
| Housing Material | Metal | |
| Connection | PG13.5 cable entry | |
| Series | FD Series | |
| Product type | Position limit switch | |
| Contact configuration | 1NO + 1NC | |
| Switching type | Snap action | |
| Actuator type | Roller lever | |
| Housing material | Metal | |
| Protection rating | IP67 | |
| Cable entry | PG13.5 with integrated cable gland (6–12 mm) | |
| Operating temperature | approx. -25 °C to +80 °C | |
| Contacts | Silver alloy | |
| Mounting type | Machine / panel mounting | |
| HS Code | 85369095 |
Frequently Asked Questions
What is the Pizzato FD557-K21 used for?
This switch is used for position detection and control in industrial machinery and automation systems.
What makes the K21 version different?
The K21 version includes a pre-assembled cable gland suitable for 6–12 mm cables, simplifying installation and improving sealing.
What contact configuration does it have?
It features 1 normally open (NO) and 1 normally closed (NC) contacts with snap-action switching.
Is it suitable for harsh environments?
Yes, it has an IP67 rating and metal housing, making it suitable for environments exposed to dust and moisture.
What actuator does it use?
It uses a roller lever actuator for accurate position detection.
Trusted by Industrial Engineers Worldwide
Pizzato FD series limit switches are widely trusted by automation engineers and machine builders for delivering reliable performance, durability and precise control in demanding industrial environments.
