Why Choose the Pizzato FR1657-K21 Safety Limit Switch?
The Pizzato FR1657-K21 is a high-performance safety limit switch designed for precise position detection and reliable machine safety monitoring in industrial automation systems. As part of the durable Pizzato FR series, it delivers consistent switching performance, long mechanical life and dependable operation in demanding environments.
This model features a long roller lever actuator, ensuring smooth and repeatable actuation when interacting with moving mechanical components. Its rugged technopolymer housing provides excellent resistance to dust, moisture and mechanical stress, making it ideal for harsh industrial applications.
The K21 version includes a pre-installed cable gland suitable for cable diameters of approximately 6–12 mm, simplifying installation and ensuring a secure connection. It is equipped with 2 normally closed (NC) slow-action independent contacts with positive opening, making it ideal for safety circuits where guaranteed contact separation is required.
Key Advantages
- Reliable safety limit switch for industrial automation.
- Roller lever actuator for smooth and precise actuation.
- 2 NC independent contacts with positive opening for safety-critical systems.
- Pre-fitted K21 cable gland for fast and secure wiring.
- Durable technopolymer housing for harsh environments.
- Long mechanical life with consistent switching performance.
Key Features
- Pizzato FR series position and safety switch.
- Model: FR1657-K21.
- Actuator type: Long roller lever.
- Contact configuration: 2 NC slow-action independent contacts.
- Positive opening operation for safety circuits.
- K21 cable gland included for Ø 6–12 mm cables.
- Technopolymer housing with PG13.5 entry.
- High resistance to mechanical wear and environmental conditions.
Reliable Position Detection and Machine Safety
The FR1657-K21 safety limit switch is designed to monitor movement and position within industrial machinery, helping to prevent overtravel and ensure safe operation. Its roller lever actuator allows smooth interaction with moving parts, delivering accurate and repeatable switching signals.
With its positive opening contacts and independent NC configuration, the switch is well suited to safety circuits where reliable disconnection is essential. The integrated cable gland further enhances installation efficiency and environmental sealing.
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 automation systems.
