fsma2 – mag sensor br m12 n/o

Why Choose the Carlo Gavazzi FSMA2 Magnetic Sensor?

The Carlo Gavazzi FSMA2 is a compact magnetic proximity sensor from the FSM Series, designed for reliable non-contact position and presence detection in industrial automation equipment. Its magnetic reed-switching principle allows a suitable external magnet to operate the sensor without physical contact with the moving component, helping to minimise mechanical wear in repetitive applications.

The FSMA2 features a robust M12 × 1 cylindrical threaded housing manufactured from nickel-plated brass and provides a normally open (NO) reed output. Its maximum operating distance is 19 mm, although the actual switching distance depends on the magnetic actuator, orientation and surrounding installation conditions.

With contact ratings up to 250 V AC, 3 A and 100 VA, an integral 2 m PVC cable, IP67 protection and an operating temperature range of -25 to +75 °C, the FSMA2 provides a durable magnetic sensing solution for machine positioning, door monitoring, automation and material-handling applications.

Key Advantages

• Non-contact magnetic detection reduces mechanical wear in repetitive switching applications.
• Normally open (NO) reed output provides straightforward switching with a suitable magnetic actuator.
• Compact M12 × 1 threaded cylindrical housing simplifies mounting and positional adjustment.
• Nickel-plated brass construction provides robust mechanical protection for industrial installations.
• Maximum operating distance of up to 19 mm with a suitable magnetic actuator.
• Maximum switching voltage of 250 V AC.
• Maximum switching current of 3 A.
• Maximum switching capacity of 100 VA.
• Integral 2 m PVC cable provides a ready-to-wire connection.
• IP67 protection supports use in demanding industrial environments.

Key Features

• Carlo Gavazzi FSM Series magnetic proximity sensor.
• Product reference: FSMA2.
• Sensor technology: Magnetic reed switch.
• Output function: Normally open (NO).
• Contact type: Relay/reed contact.
• Housing style: Cylindrical threaded barrel.
• Housing size: M12 × 1.
• Housing material: Nickel-plated brass.
• Maximum operating distance: 19 mm.
• Maximum switching voltage: 250 V AC.
• Maximum switching current: 3 A.
• Maximum switching power: 100 VA.
• Connection: Integral 2 m PVC cable.
• Protection rating: IP67.
• Operating temperature: -25 to +75 °C.

Reliable M12 Magnetic Proximity Detection

Magnetic proximity sensors provide position information without requiring mechanical contact between the sensing element and the moving component. When a suitable magnetic actuator approaches the Carlo Gavazzi FSMA2, the magnetic field operates its internal normally open reed contact, generating a switching signal for the connected control system.

The M12 × 1 threaded housing enables convenient mounting and adjustment, while the nickel-plated brass construction provides mechanical durability. The FSMA2 can achieve an operating distance of up to 19 mm; however, actual sensing distance depends on the magnet and installation geometry, and mounting on ferromagnetic supports can reduce the available operating distance because of magnetic-field losses.

Typical Applications

• Industrial machine position detection.
• Door, gate and access-panel monitoring.
• Linear actuator position sensing.
• Automated production machinery.
• Conveyor and material-handling systems.
• End-of-travel and end-position detection.
• Lift and elevator equipment.
• Pneumatic and mechanical positioning systems.
• Industrial automation requiring non-contact magnetic switching.