HX BL22-3PM Pizzato Hinged-shaped safety switches in stainless steel HX series

Why Choose the Pizzato HX BL22-3PM Stainless Steel Safety Hinge Switch?

The Pizzato HX BL22-3PM is a robust hinged safety switch in AISI 316L stainless steel designed for monitoring hinged guards, doors and access points on industrial machinery. As part of the Pizzato HX series safety hinge switches, it combines the mechanical hinge and electrical safety switch within a single compact device, helping create secure and unobtrusive machine guarding systems.

Designed for demanding industrial environments, the HX BL22-3PM features a polished AISI 316L stainless steel housing with IP67 and IP69K protection. This makes the HX series particularly suitable for installations requiring high standards of hygiene, corrosion resistance and resistance to intensive cleaning, including food processing, pharmaceutical, chemical and marine applications.

The HX BL22-3PM uses an L22 mechanical contact block with 2NO+2NC slow-action contacts and positive opening. Its adjustable switching point enables accurate alignment with the machine guard, while the hinge mechanism permits guard opening angles of up to 180°. The rear electrical connection helps maintain a clean installation by allowing wiring to be routed discreetly behind the hinge.

Key Advantages

• Integrated safety switch and mechanical hinge for hinged machine guards.
• Polished AISI 316L stainless steel housing for excellent corrosion resistance.
• IP67 and IP69K protection for demanding industrial and washdown environments.
• 2NO+2NC slow-action mechanical contacts with positive opening.
• Adjustable switching point for accurate guard position monitoring.
• Supports guard opening angles of up to 180°.
• Rear connection arrangement supports clean and discreet machine installations.
• Suitable for hygiene-sensitive food, pharmaceutical, chemical and marine environments.

Key Features

• Pizzato HX series stainless steel safety hinge switch.
• L22 contact block: 2NO+2NC, slow action, close.
• Positive-opening safety contacts.
• Polished AISI 316L stainless steel construction.
• IP67 protection according to EN 60529.
• IP69K protection according to ISO 20653.
• Standard switching point of approximately 1.5°, with fine adjustment available.
• Maximum mechanical opening angle of 180°.
• Maximum actuation frequency of 600 operating cycles/hour.
• Mechanical endurance of 1 million operating cycles.
• Designed for mounting in any orientation.
• Laser-marked stainless steel construction for durable product identification.

Reliable Safety Monitoring for Hinged Machine Guards

Safety hinge switches monitor the position of movable machine guards and allow the safety control system to detect when a protected door or panel is opened. By integrating the safety switching mechanism directly into the hinge, the Pizzato HX series provides an unobtrusive solution that is more difficult to identify and tamper with than a conventional externally mounted position switch.

The HX BL22-3PM is particularly well suited to machinery where durability, hygiene and corrosion resistance are important. Its stainless steel construction, positive-opening mechanical contacts and high ingress protection make it suitable for demanding production environments where conventional safety switches may be exposed to moisture, cleaning processes or corrosive substances.

Typical Applications

• Hinged machine guards and safety doors.
• Food and beverage processing machinery.
• Pharmaceutical manufacturing equipment.
• Chemical processing machinery.
• Marine and corrosion-prone installations.
• Packaging and production machinery.
• Washdown and hygiene-sensitive equipment.
• Industrial automation and machine building.