ma3 – rect mag sensor pl n/o

Why Choose the Carlo Gavazzi MA3 Magnetic Proximity Sensor?

The Carlo Gavazzi MA3 is a compact rectangular magnetic proximity sensor designed for reliable non-contact position and presence detection in industrial automation equipment. It uses a miniature reed switching element housed within a durable plastic rectangular body, providing a simple and dependable method of detecting a suitable magnetic actuator.

The MA3 features a normally open (N/O) dry reed contact with a maximum switching voltage of 500 V AC, maximum switching current of 0.5 A and maximum switching power of 10 VA. Its non-contact operating principle helps minimise mechanical wear, making it suitable for repeated position-monitoring duties on machinery and automated equipment.

With an operating distance of 7–35 mm, an IP67 enclosure rating and a 0.5 m PVC cable, the Carlo Gavazzi MA3 is designed for dependable industrial installation. Its small 37 × 16 × 8.3 mm housing makes it particularly useful where installation space is limited.

Key Advantages

• Non-contact magnetic detection helps minimise mechanical wear.
• Normally open dry reed contact provides straightforward switching operation.
• Compact 37 × 16 × 8.3 mm rectangular housing for space-conscious installations.
• 7–35 mm operating distance provides flexible positioning with a suitable magnetic actuator.
• IP67 protection supports installation in demanding industrial environments.
• Pre-wired 0.5 m PVC cable simplifies electrical connection.

Key Features

• Carlo Gavazzi M Series magnetic proximity sensor.
• Rectangular plastic housing.
• Normally open (N/O) output.
• Miniaturised dry reed contact.
• 500 V AC maximum switching voltage.
• 0.5 A maximum switching current.
• 10 VA maximum switching power.
• 7–35 mm operating distance.
• 0.5 m PVC cable connection.
• IP67 degree of protection.
• Operating temperature range of -25 to +75 °C.
• Compact housing dimensions of 37 × 16 × 8.3 mm.

Compact Non-Contact Position Detection

The Carlo Gavazzi MA3 operates by detecting the magnetic field produced by a suitable magnetic actuator. When the magnet enters the sensor's operating region, the normally open reed contact changes state, allowing the position or presence of a moving component to be detected without direct mechanical contact.

This magnetic operating principle, combined with the MA3's compact rectangular housing and IP67 protection, makes it well suited to repetitive position-monitoring applications. Suitable magnetic units are selected separately, allowing the sensor and actuator arrangement to be matched to the mechanical requirements of the installation.

Typical Applications

• Industrial machine position detection.
• Door, gate and access-position monitoring.
• Conveyor and material-handling equipment.
• Automated production machinery.
• Packaging and processing equipment.
• Non-contact presence and movement detection.