PMA40240 - CURR.REL.2OUT.24-240VAC/DC MIN-MAX CURR.

Why Choose the Lovato PMA40240 Current Monitoring Relay?

The Lovato PMA40240 is a reliable AC/DC current monitoring relay designed for minimum and maximum current supervision in single-phase and three-phase electrical systems. As part of the Lovato PMA40 monitoring relay series, it provides dependable protection and control for machinery, panels and industrial automation applications where current levels must be monitored accurately.

This relay helps detect abnormal current conditions such as undercurrent and overcurrent, allowing control circuits to respond before equipment damage or process disruption occurs. Its adjustable settings and potentiometer-based programming make it practical for use in a wide range of monitoring and protection tasks.

With a wide auxiliary supply range of 24–240 V AC/DC and selectable current ranges of 0.02, 0.05, 0.25, 1, 5 and 16 A, the PMA40240 is suitable for both low-level signal monitoring and higher current supervision. Its DIN rail mounting format enables straightforward installation inside control panels and distribution boards.

Key Advantages

• Reliable current monitoring relay for AC/DC circuits.
• Suitable for single-phase and three-phase systems.
• Minimum and maximum current monitoring for equipment protection.
• Wide 24–240 V AC/DC auxiliary supply range.
• Selectable current ranges from 0.02 A to 16 A.
• DIN rail mounting for fast control panel installation.

Key Features

• Lovato PMA40 monitoring relay series.
• AC/DC minimum and maximum current control.
• Single-phase and three-phase system compatibility.
• Two relay outputs for control and signalling functions.
• 24–240 V AC/DC rated auxiliary supply voltage.
• Adjustable settings via front potentiometers.
• Selectable rated current ranges: 0.02, 0.05, 0.25, 1, 5 and 16 A.
• Compact DIN rail format for electrical enclosures.

Technical Specifications

• Manufacturer: Lovato Electric
• Series: PMA40
• Model: PMA40240
• Product type: Current monitoring relay
• Monitoring function: AC/DC minimum and maximum current control
• System type: Single-phase and three-phase
• Auxiliary supply voltage: 24–240 V AC/DC
• Operating voltage range: 0.85–1.1 Us
• Rated frequency: 50 / 60 Hz
• Rated current ranges: 0.02 / 0.05 / 0.25 / 1 / 5 / 16 A
• Number of relay outputs: 2
• Programming mode: Potentiometers
• Power consumption: max. 7 VA
• Power dissipation: max. 1.7 W
• Mounting type: DIN rail mounting
• Connection type: Screw terminals
• Weight: approx. 190 g

Dependable Current Supervision for Control Panels

Current monitoring relays such as the Lovato PMA40240 supervise electrical loads and control circuits by checking whether the measured current remains within set limits. If the current rises above or falls below the selected threshold, the relay output can trigger an alarm, shutdown command or protection sequence.

The PMA40240 is well suited to industrial panels where reliable monitoring is required for motors, pumps, heaters, process equipment and automation circuits. Its wide supply voltage range and adjustable current settings make it flexible for both new installations and maintenance replacement work.

Typical Applications

• Motor current monitoring in industrial control panels.
• Pump dry-run and overload detection.
• Fan, blower and conveyor supervision.
• Heater and load monitoring circuits.
• Automation panels and machinery protection systems.
• Electrical fault detection and signalling applications.

Trusted by Panel Builders Worldwide

Lovato PMA40 monitoring relays are widely used by panel builders, automation engineers and maintenance teams to provide reliable current supervision, equipment protection and control signalling in industrial electrical systems.