SM2X14400 Lovato undervoltage trip release 400vac 50/60hz

Why Choose the Lovato SM2X14400 Undervoltage Trip Release?

The Lovato SM2X14400 is a dependable undervoltage trip release designed for use with Lovato SM2R and SM3R motor protection circuit breakers. Operating from a 400 V AC 50/60 Hz control supply, it automatically trips the associated circuit breaker if the supply voltage falls below the permitted operating threshold, helping to protect personnel, machinery and industrial processes.

As part of the Lovato SM2X accessory range, the SM2X14400 enhances the safety and functionality of motor protection installations by preventing unexpected motor restart following a power interruption. Its compact design enables quick installation without increasing panel space requirements.

Featuring robust screw terminal connections, a 690 V rated insulation voltage and 4 kV impulse withstand voltage, the SM2X14400 delivers reliable long-term performance in demanding industrial environments including automation systems, motor control centres and OEM machinery.

Key Advantages

• Designed for Lovato SM2R and SM3R motor protection circuit breakers.
• 400 V AC 50/60 Hz undervoltage trip release.
• Automatically disconnects the circuit during undervoltage conditions.
• Helps prevent unintended motor restart after supply restoration.
• Compact accessory for straightforward installation.
• Reliable performance in industrial motor control applications.

Key Features

• Lovato SM2X undervoltage trip release series.
• 400 V AC rated operating voltage.
• 50/60 Hz operating frequency.
• Compatible with SM2R and SM3R motor protection circuit breakers.
• 690 V rated insulation voltage (Ui).
• 4 kV rated impulse withstand voltage (Uimp).
• Screw terminal connections.
• Long mechanical service life.

Technical Specifications

• Manufacturer: Lovato Electric
• Series: SM2X
• Model: SM2X14400
• Product type: Undervoltage trip release
• Accessory for: SM2R and SM3R motor protection circuit breakers
• Rated supply voltage: 400 V AC
• Frequency: 50 / 60 Hz
• In-rush consumption: 8.5 VA
• Holding consumption: 3 VA
• Release voltage: 35 to 70% Us
• Operating voltage: 85 to 110% Us
• Rated insulation voltage (Ui): 690 V
• Rated impulse withstand voltage (Uimp): 4 kV
• Connection type: Screw terminals
• Protection rating: IP20
• Mechanical life: 100,000 operations
• Operating temperature: -20°C to +70°C
• Storage temperature: -50°C to +80°C
• Maximum installation altitude: 3000 m
• Weight: Approx. 100 g

Reliable Undervoltage Protection for Industrial Motor Control

Undervoltage trip releases disconnect motor protection devices whenever the control voltage falls below the specified operating level. This improves operational safety by ensuring machinery cannot automatically restart following a power interruption until normal operating conditions have been restored.

The Lovato SM2X14400 has been developed for industrial control panels, automation equipment and motor control centres where dependable undervoltage protection is essential for equipment safety and compliance.

Typical Applications

• Industrial motor control panels.
• Motor control centres.
• OEM machinery.
• Factory automation systems.
• Pump, fan and conveyor control.
• Applications requiring undervoltage protection and controlled shutdown.

Trusted by Industrial Control Professionals

Lovato SM series accessories are widely trusted by machine builders, panel manufacturers and automation engineers to deliver dependable motor protection, improved operational safety and reliable long-term performance.