Enhance protection and control with the Lovato SM1X15400R undervoltage trip release accessory for SM1R… devices. Designed to operate at 400VAC 50Hz, it features early‑make 2NO contacts for dependable circuit coordination. Part of the SM1X series, this accessory supports precise undervoltage tripping to safeguard equipment. Built by Lovato, it integrates seamlessly as a dedicated accessory and maintains consistent performance in demanding industrial environments.
Engineered for reliability, the SM1X15400R offers Ui 690 V and Uimp 4 kV, with mechanical life rated to 100000 cycles. It operates from -20 to +60 °C and up to 3000 m altitude, and weighs 130 g. Conforms to IEC/EN 60947-1 and 60947-5-1, plus UL508 and CSA C22.2 n° 14. Terminal tightening torque is 1 Nm for secure connections.
Key Benefits
Early-make 2NO contacts for coordinated operation during undervoltage events.
Operates at 400VAC 50Hz for consistent trip functionality.
Compatible accessory for SM1R… devices within the SM1X range.
High insulation rating Ui 690 V enhances dielectric strength.
4 kV impulse withstand improves resilience against transients.
Wide operating temperature range from -20 to +60 °C.
Long mechanical life of 100000 cycles for dependable service.
What’s Included
SM1X15400R undervoltage trip release module
Installation and safety information (manufacturer datasheet)
Original manufacturer packaging
Applications
Integration with SM1R… devices requiring undervoltage trip functionality
Installations conforming to IEC/EN 60947 control requirements
Environments within -20 to +60 °C and up to 3000 m altitude
Panels using 400VAC 50Hz supply where undervoltage tripping is needed
Technical Specifications
HS Code
85362010
Product type designation
SM1X
Rated insulation voltage Ui (IEC/EN)
690 V
Rated impulse withstand voltage Uimp
4 kV
Terminal tightening torque
1 to 1 Nm
Weight
130 g
Mechanical life
100000 cycles
Operating temperature
-20 to +60 °C
Storage temperature
-50 to +80 °C
Max altitude
3000 m
Frequently Asked Questions
What is the operating voltage of the SM1X15400R?
It operates at 400VAC 50Hz for undervoltage trip release functionality.
Which devices is this accessory compatible with?
It is designed as an accessory for SM1R… devices and belongs to the SM1X series.
What type of contacts does it have?
It features 2NO early-make contacts.
Which standards does the SM1X15400R conform to?
It conforms to IEC/EN 60947-1, IEC/EN 60947-5-1, UL508 and CSA C22.2 n° 14.
What are the operating conditions and endurance ratings?
It operates from -20 to +60 °C and provides a mechanical life of 100000 cycles.
Safety note: Installation should be performed by qualified personnel with power isolated. Follow the manufacturer’s wiring and torque guidance, and operate the unit within the specified ratings and ambient conditions.
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.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
Trusted Manfacturers
● frequently asked questions
Common questions about our products and support
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.
What product ranges do you supply
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Can you help specify the correct part?
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.
Do you have stock for urgent orders?
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.
What are your delivery times and costs?
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.
What about warranties, returns and faulty items?
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.
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...