PMA30240 - CURR.REL.1OUT.24-240VAC/DC MIN-MAX CURR.

Why Choose the Lovato PMA30240 Current Monitoring Relay?

The Lovato PMA30240 is an advanced current monitoring relay designed for monitoring minimum or maximum AC/DC current in both single-phase and three-phase electrical systems. As part of the Lovato PMA30 monitoring relay series, it provides dependable protection and process supervision for industrial machinery, motors, pumps and automation systems where accurate current monitoring is essential.

The relay features a wide 24-240 V AC/DC auxiliary supply, making it suitable for a broad range of industrial control panels without requiring dedicated supply voltages. Adjustable current thresholds, programmable delays and automatic or manual reset options allow the PMA30240 to be tailored to many monitoring applications.

Supporting 5 A or 16 A rated current inputs with direct connection or operation via a current transformer, the PMA30240 provides flexible installation while its compact DIN rail housing allows easy integration into new or existing control systems.

Key Advantages

• Minimum or maximum AC/DC current monitoring.
• Suitable for single-phase and three-phase systems.
• 24-240 V AC/DC auxiliary supply for maximum installation flexibility.
• Direct connection or current transformer input.
• Automatic or manual reset operation.
• Compact DIN rail mounting for industrial control panels.

Key Features

• Lovato PMA30 monitoring relay series.
• Minimum or maximum current monitoring.
• 24-240 V AC/DC auxiliary supply voltage.
• 5 A or 16 A rated current input.
• Direct connection or current transformer operation.
• Adjustable current set-point from 5-100%.
• Adjustable trip delay from 0.1-30 seconds.
• Adjustable reset hysteresis from 1-50%.
• Automatic or manual reset selection.
• 1 SPDT relay output.
• DIN rail mounting.

Technical Specifications

• Manufacturer: Lovato Electric
• Series: PMA30 Monitoring Relays
• Model: PMA30240
• Product type: Current monitoring relay
• Monitoring function: Minimum or maximum AC/DC current
• Suitable systems: Single-phase and three-phase
• Auxiliary supply voltage: 24-240 V AC/DC
• Rated frequency: 50/60 Hz
• Rated current: 5 A or 16 A
• Connection: Direct or via current transformer
• Current set-point: 5-100% of rated current
• Trip delay: 0.1-30 s
• Reset hysteresis: 1-50%
• Inhibition time: 1-60 s
• Reset mode: Automatic or manual
• Relay outputs: 1 changeover (SPDT)
• Programming: Front potentiometers
• Mounting type: 35 mm DIN rail
• Protection rating: IP40 front, IP20 terminals
• Dimensions (H × W × D): 104.7 × 35.8 × 64.9 mm
• Weight: approx. 144 g

Reliable Current Monitoring for Industrial Control Systems

The Lovato PMA30240 continuously supervises circuit current and activates its relay output whenever the measured value falls below or rises above the programmed threshold. This enables rapid detection of overloads, underloads, broken belts, dry-running pumps, stalled motors and other abnormal operating conditions before equipment damage occurs.

Its wide operating voltage range, configurable operating modes and adjustable timing functions make it an ideal solution for machine builders, panel builders and maintenance engineers seeking reliable current supervision in industrial automation systems.

Typical Applications

• Motor overload and underload monitoring.
• Pump dry-run detection.
• Conveyor and machine supervision.
• Industrial automation systems.
• Control panel protection.
• Process monitoring applications.

Trusted by Automation Engineers Worldwide

Lovato monitoring relays are trusted by machine builders, panel builders and industrial maintenance engineers to provide dependable electrical monitoring, improve equipment protection and increase system reliability.