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FR 1157-K21 Pizzato Position switch with roller lever
Pizzato FR1157-K21 safety limit switch with roller lever actuator, 2 NC snap-action contacts and pre-installed cable gland for industrial position detection and machine safety.
£13.02
Why Choose the Pizzato FR1157-K21 Safety Limit Switch?
The Pizzato FR1157-K21 is a robust and highly reliable safety limit switch designed for precise position detection and machine safety applications in industrial automation environments. As part of the well-established Pizzato FR series, it offers dependable switching performance, long mechanical life and consistent operation in demanding conditions.
This variant features a roller lever actuator combined with a factory-fitted K21 cable gland, enabling fast installation and secure cable management. Its rugged technopolymer housing ensures resistance to mechanical stress, dust and moisture, making it suitable for harsh industrial environments.
With 2 normally closed (NC) snap-action contacts and positive opening capability, the FR1157-K21 is ideal for safety circuits where reliable contact separation and machine protection are essential.
Key Advantages
- Reliable safety limit switch for industrial automation.
- Pre-installed K21 cable gland for quick wiring (6–12 mm cable range).
- Roller lever actuator ensures smooth and precise actuation.
- 2 NC contacts with positive opening for safety applications.
- Durable technopolymer housing for harsh environments.
- Compact design for easy integration into machinery.
Key Features
- Pizzato FR series position and safety switch.
- Model: FR1157-K21.
- Actuator type: Roller lever with technopolymer roller.
- Contact configuration: 2 NC snap-action contacts.
- Positive opening operation for safety circuits.
- K21 cable gland included for Ø 6 to 12 mm cables.
- Technopolymer housing with PG13.5 conduit entry.
- Zinc-plated steel external components with silver contacts.
Reliable Position Detection and Machine Safety
The FR1157-K21 safety limit switch is designed to monitor movement and position within industrial machinery, ensuring safe operation and preventing overtravel. Its roller lever actuator enables smooth contact with moving parts, providing accurate and repeatable switching.
The inclusion of a pre-fitted cable gland simplifies installation, reducing wiring time and improving sealing integrity. This makes the switch particularly suitable for industrial environments where reliability and ease of maintenance are essential.
Typical Applications
- Machine guarding and safety interlocking systems.
- Position detection in industrial machinery.
- Conveyor systems and material handling equipment.
- Packaging and processing machinery.
- Automated production lines and robotics.
- OEM machine building and control systems.
Technical Specifications
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| Device Type | Limit switch | |
|---|---|---|
| Housing Material | Technopolymer | |
| Switching Action | Snap action | |
| IP Rating | IP67 | |
| Contacts | 2NC | |
| Actuator Type | Roller lever | |
| Connection | Pre-wired cable | |
| Series | FR Series | |
| Product type | Safety limit switch / position switch | |
| Actuator | Roller lever | |
| Contact configuration | 2 NC | |
| Contact type | Snap-action, positive opening | |
| Rated current | up to 10 A | |
| Rated voltage | up to 250 V AC | |
| Protection rating | IP67 | |
| Operating temperature | approx. -25 °C to +80 °C | |
| Housing material | Technopolymer | |
| Cable entry | PG13.5 with K21 gland (6–12 mm cable) | |
| Mounting | Standard industrial mounting | |
| HS Code | 85369095 |
Frequently Asked Questions
What is the Pizzato FR1157-K21 used for?
This switch is used for position detection and safety monitoring in industrial machinery and automation systems.
What does the K21 designation mean?
The K21 suffix indicates that the switch is supplied with a pre-installed cable gland suitable for cables with a diameter of 6 to 12 mm.
What contact configuration does this switch have?
The FR1157-K21 includes 2 normally closed (NC) contacts with positive opening, ideal for safety circuits.
Is this switch suitable for harsh environments?
Yes, with an IP67 protection rating, it is designed for reliable operation in demanding industrial conditions.
What type of actuator is used?
This model features a roller lever actuator, enabling smooth and accurate actuation from moving machine parts.
Trusted by Industrial Automation Engineers
Pizzato FR series limit switches are widely trusted for their durability, precision engineering and dependable performance in safety-critical industrial applications.
