SMS-A2P-03 – Safety magnetic sensor 2 N.O. M18

Why Choose the Carlo Gavazzi SMS-A2P-03 Safety Magnetic Sensor?

The Carlo Gavazzi SMS-A2P-03, manufacturer part number SMSA2P03, is a cylindrical safety magnetic sensor designed for non-contact monitoring of hinged, sliding and removable machine guards. It features an M18 × 1 plastic threaded housing, two normally open reed contacts and multiple-flux magnetic coding for use with the corresponding coded actuator.

The SMS-A2P-03 provides a 16 mm switch-on distance and a 20 mm switch-off distance. Its non-contact magnetic operating principle eliminates the need for direct mechanical actuation between the sensor and guard, helping minimise mechanical wear in machinery where doors and protective guards are opened and closed frequently.

Designed for industrial machine safety applications, the SMS-A2P-03 features a 2 m cable, IP67 protection and an operating temperature range of -25 °C to +70 °C. The sensor has a maximum switching voltage of 100 V AC, maximum switching current of 250 mA and is suitable for applications up to Category 4 / PL e when correctly connected to appropriate safety devices.

Key Advantages

• 2NO reed contact outputs for compatible safety monitoring circuits.
• 16 mm switch-on distance for practical non-contact guard detection.
• Multiple-flux magnetic coding for coded actuator detection.
• Compact M18 × 1 cylindrical threaded housing for convenient machine mounting.
• Non-flush mounting configuration.
• 2 m cable for straightforward wired installation.
• IP67 protection rating for demanding industrial environments.
• Non-contact operation helps minimise mechanical wear.
• Suitable for applications up to Category 4 / PL e when integrated with appropriate safety equipment.

Key Features

• Carlo Gavazzi SMS Series safety magnetic sensor.
• 2 normally open contacts.
• Dry reed contact output.
• Multiple-flux coding.
• 16 mm nominal sensing distance.
• 20 mm switch-off distance.
• M18 × 1 cylindrical threaded housing.
• Plastic sensor body.
• Non-flush mounting.
• 0–100 V AC switching voltage.
• 250 mA maximum switching current.
• 5 VA maximum switching power.
• 2 m cable connection.
• IP67 environmental protection.
• -25 °C to +70 °C operating temperature.

Coded Non-Contact Monitoring for Machine Guards

Safety magnetic sensors such as the Carlo Gavazzi SMS-A2P-03 monitor the position of movable machine guards without requiring direct mechanical contact. The sensor detects its corresponding coded magnetic actuator when it enters the defined operating range, enabling the associated safety system to determine whether a hinged, sliding or removable guard is in the required position.

The SMS-A2P-03 combines multiple-flux coding with two normally open reed contacts and a 16 mm switch-on distance. Its M18 cylindrical housing, 2 m cable and IP67 protection make it a practical solution for industrial machinery requiring reliable coded guard monitoring and reduced mechanical wear.

Typical Applications

• Hinged machine guard monitoring.
• Sliding safety doors and guards.
• Removable machine guards and protective covers.
• Automated production machinery.
• Packaging and processing equipment.
• Machine tools and manufacturing systems.
• Industrial machinery exposed to dirty or damp environments.
• OEM machine safety and guard-monitoring systems.