fsma2 - mag sensor br m12 n/o

fsma2 – mag sensor br m12 n/o

Carlo Gavazzi FSMA2 is an IP67 FSM Series normally open magnetic proximity sensor with an M12 × 1 nickel-plated brass housing, 19 mm maximum operating distance, 2 m PVC cable and switching ratings up to 250 V AC, 3 A and 100 VA.

SKU: FSMA2MPN: FSMA2
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Sold in packs of 5

£42.20

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.

Technical Specifications

Manufacturer Carlo Gavazzi
Series FSM Series
Manufacturer part number FSMA2
Product type Magnetic proximity sensor
Sensing principle Magnetic reed switching
Output configuration Normally open (NO)
Contact type Reed / relay contact
Switching direction Front-side switching
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
Electrical connection PVC cable
Cable length 2 m
Protection rating IP67
Operating temperature -25 to +75 °C
Actuation External magnetic actuator

Frequently Asked Questions

What is the Carlo Gavazzi FSMA2?

The FSMA2 is an FSM Series magnetic proximity sensor with an M12 × 1 nickel-plated brass housing, normally open reed output and integral 2 m PVC cable.

What output configuration does the FSMA2 have?

The Carlo Gavazzi FSMA2 provides a normally open (NO) reed-contact output. A suitable magnetic actuator causes the contact to switch when it enters the effective sensing range.

What size housing does the Carlo Gavazzi FSMA2 use?

The sensor uses a compact M12 × 1 cylindrical threaded housing manufactured from nickel-plated brass.

What is the maximum operating distance of the FSMA2?

The specified maximum operating distance is 19 mm. Actual switching distance depends on the magnetic actuator, its orientation and the surrounding installation conditions.

What are the electrical switching ratings of the FSMA2?

The FSMA2 is specified for a maximum switching voltage of 250 V AC, maximum switching current of 3 A and maximum switching power of 100 VA.

How is the Carlo Gavazzi FSMA2 connected?

The sensor is supplied with an integral 2 m PVC cable for connection to the associated industrial control circuit.

Can the FSMA2 be mounted on ferromagnetic material?

Yes, but mounting the sensor directly on a ferromagnetic support can reduce its effective operating distance because part of the magnetic field may be lost through the surrounding material.

What protection rating and operating temperature does the FSMA2 have?

The FSMA2 provides IP67 protection and is specified for operation from -25 to +75 °C.

Trusted by Automation Engineers Worldwide

Carlo Gavazzi magnetic sensing products are used by machine builders, system integrators and automation engineers for dependable non-contact position and presence detection across industrial machinery, material-handling equipment and automated control systems.

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