Why Choose the Pizzato SR AL41AN4 Magnetic Safety Sensor?
The Pizzato SR AL41AN4 is a compact magnetic safety sensor from the Pizzato SR-A coded magnetic safety sensor series, designed for non-contact monitoring of movable guards, safety doors and protective covers on industrial machinery. Its non-contact operating principle helps reduce mechanical wear while providing reliable guard-position detection in industrial automation and machine safety applications.
The SR AL41AN4 features a 1NO+2NC contact configuration with the monitored guard closed, combining two normally closed contacts with one normally open auxiliary contact. Reed contact switching provides a straightforward interface for compatible safety control equipment while the additional NO contact can support signalling or monitoring requirements.
This sensor-only version features a 4 m PVC cable with 6 × 0.25 mm² conductors and a left-side electrical connection. The robust technopolymer housing provides IP67 and IP69K protection, and the sensor is designed for use with the separately available SM A01N coded magnetic actuator, providing a 5 mm actuation distance.
Key Advantages
- Non-contact magnetic sensing reduces mechanical wear on frequently operated guards.
- 1NO+2NC contact configuration provides safety and auxiliary monitoring contacts.
- 4 m pre-wired PVC cable provides useful installation flexibility.
- Left-side cable connection suits machinery requiring this wiring orientation.
- IP67 and IP69K protection supports use in demanding industrial environments.
- Compatible with the SM A01N coded magnetic actuator for reliable guard-position monitoring.
Key Features
- Pizzato SR-A magnetic safety sensor.
- 1 normally open + 2 normally closed (1NO+2NC) contacts with the guard closed.
- Reed contact switching technology.
- Non-contact magnetic actuation.
- 4 m PVC connection cable.
- 6 × 0.25 mm² cable conductors.
- Left-side electrical connection.
- Durable technopolymer housing.
- IP67 and IP69K protection ratings.
- Designed for use with the separately available SM A01N coded magnetic actuator.
- 5 mm actuation distance when paired with the SM A01N actuator.
- Suitable for safety systems up to SIL 3, PL e and Category 4 when correctly installed and integrated with appropriate safety control equipment.
Reliable Non-Contact Guard Monitoring
The Pizzato SR AL41AN4 monitors movable machine guards without requiring physical contact between the sensor and actuator. When used with the compatible SM A01N coded magnetic actuator, the sensor detects the actuator within its operating range and changes the state of its reed contacts, enabling the associated safety control system to monitor whether the guard is correctly positioned.
The combination of a 1NO+2NC contact arrangement, 4 m pre-wired cable and left-side connection makes the SR AL41AN4 particularly useful for machinery requiring both safety contacts and an auxiliary monitoring contact. Its sealed technopolymer construction and non-contact operating principle also make it suitable for applications where contamination or repeated guard operation could accelerate wear on conventional mechanical switches.
Typical Applications
- Machine guard and safety door monitoring.
- Protective covers and access panels.
- Automated production and assembly machinery.
- Packaging and processing equipment.
- Conveyors and material handling systems.
- OEM machinery and industrial automation systems.
