HX BH22-KSMH90 Pizzato Hinged-shaped safety switches in stainless steel HX series

Why Choose the Pizzato HX BH22-KSMH90 Hinged Safety Switch?

The Pizzato HX BH22-KSMH90 is a robust hinged-shaped safety switch from the stainless steel HX series, designed to combine the mechanical function of a hinge with dependable position monitoring of movable machine guards, doors and protective panels. Integrating the switching mechanism directly into the hinge creates a compact and discreet safety solution without requiring a conventional external actuator.

This electromechanical HX configuration features 2 NO + 2 NC slow-action overlapping contacts with positive-opening operation of the safety contacts. The switch is rated for 24–250 V AC/DC and uses an 8-pole M12 connector for convenient connection to the machine control system. The H90 configuration provides a 90° activation angle for suitable hinged-guard installations.

Manufactured with a rugged AISI 316L stainless steel housing and connection outlet from below, the HX BH22-KSMH90 is particularly suitable for hygienic, corrosive and demanding environments. Protection ratings of IP67 according to EN 60529 and IP69K according to ISO 20653 make it an excellent choice for industrial machinery where durability, washdown resistance and reliable guard monitoring are required.

Key Advantages

• Combines a mechanical hinge and safety switch in one integrated device.
• Robust AISI 316L stainless steel housing for hygienic and corrosive environments.
• 2 NO + 2 NC slow-action contacts provide safety and auxiliary switching functions.
• Positive-opening operation supports dependable machine-safety applications.
• 90° activation angle for compatible hinged guards and safety doors.
• Wide 24–250 V AC/DC operating voltage range.
• 8-pole M12 connector simplifies installation and replacement.
• IP67 and IP69K protection supports demanding industrial and washdown environments.

Key Features

• Pizzato HX series hinged-shaped safety switch.
• Integrated mechanical hinge and safety switching function.
• AISI 316L stainless steel construction.
• 2 NO + 2 NC contact configuration.
• Slow-action overlapping contacts.
• Positive-opening safety contacts.
• 24–250 V AC/DC operating voltage.
• 90° activation angle.
• Connection outlet from below.
• 8-pole M12 male connector.
• Silver electrical contacts.
• IP67 protection according to EN 60529.
• IP69K protection according to ISO 20653.
• Suitable for safety-related hinged guard monitoring.

Integrated Safety Monitoring for Hinged Machine Guards

Hinged safety switches combine the mechanical support of a guard hinge with electrical position monitoring, allowing the safety function to remain discreetly integrated into the guarding system. When a guard fitted with the Pizzato HX BH22-KSMH90 rotates through its switching position, the internal 2 NO + 2 NC slow-action contact block changes state, allowing a correctly designed safety circuit to stop or inhibit hazardous machine operation.

The integrated design also makes the safety switch less obvious and more difficult to interfere with than many exposed actuator arrangements. Combined with its AISI 316L stainless steel housing, positive-opening contacts and IP67/IP69K protection, the HX BH22-KSMH90 is particularly well suited to food processing, pharmaceutical, chemical, marine and other industrial applications where hygiene, corrosion resistance and reliable machine safety are important.

Typical Applications

• Hinged industrial machine guards.
• Safety doors and protective access panels.
• Food and beverage processing machinery.
• Pharmaceutical and hygienic production equipment.
• Chemical processing machinery.
• Marine and corrosion-prone installations.
• Washdown machinery and production areas.
• Automated manufacturing and robotic guarding systems.