PMA20240 - CURR.REL.1OUT.24-240VAC/DC MAX CURR.

Why Choose the Lovato PMA20240 Current Monitoring Relay?

The Lovato PMA20240 is a versatile current monitoring relay designed for maximum current control in single-phase AC and DC systems. As part of the Lovato PMA20 monitoring relay series, it provides reliable protection and supervision for electrical circuits where overcurrent detection, adjustable thresholds and dependable relay output signalling are required.

This monitoring relay is suitable for applications where current levels must be continuously supervised to protect equipment, identify abnormal operating conditions or trigger alarms and control actions. Its wide 24–240 V AC/DC auxiliary supply makes it highly flexible for use across different control panel designs and industrial automation systems.

With selectable 5 A or 16 A rated current monitoring, potentiometer adjustment and a single changeover relay output, the PMA20240 is ideal for machinery, control panels, pumps, motors and general electrical supervision. Its compact DIN rail format enables straightforward installation inside industrial enclosures and distribution panels.

Key Advantages

• Current monitoring relay for single-phase AC and DC systems.
• Maximum current control for protection and monitoring applications.
• 24–240 V AC/DC supply voltage for flexible panel integration.
• 5 A or 16 A rated current selection for different circuit requirements.
• Potentiometer programming for simple adjustment.
• Compact DIN rail mounting design for control panels.

Key Features

• Lovato PMA20 monitoring relay series.
• Single-phase current monitoring relay.
• AC/DC maximum current control.
• 24–240 V AC/DC auxiliary supply.
• 5 A or 16 A rated current range.
• 1 changeover relay output.
• Potentiometer adjustment for easy configuration.
• DIN rail mounting for industrial control panels.

Technical Specifications

• Manufacturer: Lovato Electric
• Series: PMA20 Monitoring Relays
• Model: PMA20240
• Product type: Current monitoring relay
• Controlled parameter: AC/DC maximum current
• Type of system: Single-phase
• Auxiliary supply voltage: 24–240 V AC/DC
• Rated frequency: 50 / 60 Hz
• Rated current: 5 A or 16 A
• Current measuring range: 0.25 A to 16 A
• Relay outputs: 1 changeover contact
• Contact configuration: SPDT
• Programming mode: Potentiometers
• Adjustable delay: 0.1 to 30 s
• Power consumption: approx. 3.2 VA
• Power dissipation: approx. 1.6 W
• Mounting type: 35 mm DIN rail
• Terminal type: Screw terminals
• Protection rating: IP20 terminals / IP40 front
• Dimensions (H × W × D): approx. 104.7 × 35.8 × 64.9 mm
• Weight: approx. 144 g

Reliable Current Monitoring for Control Panels

Current monitoring relays such as the Lovato PMA20240 help supervise electrical circuits by detecting when current rises above a set threshold. This allows control systems to respond quickly to overload conditions, abnormal machine behaviour or process faults before equipment damage or unplanned downtime occurs.

The PMA20240 is designed for practical industrial use, with simple potentiometer configuration, wide supply voltage compatibility and a relay output for integration into control circuits. It is well suited for panel builders and maintenance engineers requiring dependable current supervision in compact electrical panels.

Typical Applications

• Single-phase current monitoring systems.
• Motor and pump protection circuits.
• Industrial machinery control panels.
• Automation and process control systems.
• Overcurrent alarm and supervision circuits.
• Electrical distribution and panel building applications.

Trusted by Panel Builders Worldwide

Lovato monitoring relays are widely used by panel builders, electrical installers and automation engineers to supervise electrical systems, protect equipment and improve control panel reliability.