Why Choose the Pizzato HPAA050M-4SN Safety Hinge Switch?
The Pizzato HPAA050M-4SN is a robust safety hinge switch designed for monitoring hinged safety guards on industrial machinery. As part of the heavy-duty Pizzato HP series, it integrates the switching mechanism directly into the hinge, delivering both structural durability and precise guard position detection.
This integrated design ensures machinery is automatically stopped when protective guards are opened, helping to safeguard operators and maintain compliance with modern machine safety standards. Its positive opening contacts ensure reliable disconnection even under fault conditions, making it suitable for safety-critical environments.
The HPAA050M-4SN features a 2 normally open (NO) and 2 normally closed (NC) contact configuration with a snap-action switching mechanism. It is supplied with a 4 metre oil-resistant PVC cable and operates with a 0° activation angle, ensuring accurate and consistent guard monitoring.
Key Advantages
- Integrated safety switch within hinge assembly for compact and secure installation.
- 2NO + 2NC contacts for enhanced safety circuit redundancy.
- Positive opening contacts ensure safe and dependable operation.
- 4 metre cable provides flexibility for medium to large machinery.
- Durable metal housing for long-term industrial reliability.
- Oil-resistant cable suitable for demanding environments.
Key Features
- Pizzato HP series safety hinge switch.
- 2NO + 2NC snap-action contacts.
- Positive opening safety contacts compliant with IEC 60947-5-1.
- Metal housing construction for heavy-duty industrial use.
- 4 m PVC cable (oil-resistant to IEC 60332-1-2).
- 0° activation angle for precise guard detection.
- Silver contacts for reliable electrical performance.
- 100 × 50 mm movable hinge section for standard mounting.
Reliable Guard Monitoring for Industrial Safety
Safety hinge switches such as the HPAA050M-4SN are designed to detect whether a protective guard is open or closed. When the guard is opened, the switch interrupts the safety circuit, preventing hazardous machine movement and ensuring operator safety.
By integrating the switching mechanism directly into the hinge, this design reduces tampering risk and simplifies installation. The HP series is widely used in accordance with EN ISO 14119 for interlocking devices in industrial machinery.
Typical Applications
- Industrial machine guard monitoring.
- Access doors on automated production systems.
- Packaging and processing equipment.
- Machine tools and CNC machinery.
- Robotics and automated cells.
- OEM machinery and safety retrofits.
