Lovato SM2X14400 undervoltage trip release operating at 400 V AC 50/60 Hz for Lovato SM2R and SM3R motor protection circuit breakers.
£42.01
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.
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.
| 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 |
| HS Code | 85362010 |
The SM2X14400 is an undervoltage trip release that disconnects compatible motor protection circuit breakers whenever the control voltage falls below the permitted operating range.
It is designed for use with Lovato SM2R and SM3R motor protection circuit breakers.
The unit operates from a 400 V AC 50/60 Hz control supply.
It helps prevent unexpected motor restart after a power interruption by ensuring the motor protection circuit breaker trips whenever the control voltage falls below safe operating limits.
Yes. The SM2X14400 is designed for industrial control panels, machine building and automation applications using compatible Lovato motor protection circuit breakers.
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.
● Service Agreements
Credit Accounts
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
● frequently asked questions
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
● latest blog
LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...