Siemens Unveils New Thermal Monitoring Solution for Electrical Distribution Systems

Peachtree Corners, Ga. | December 7, 2020

  • Prevents downtime and enables predictive maintenance 
  • Ideal for commercial and industrial markets

Siemens recently released its SEM3T™ modular thermal monitoring solution that can identify a compromised joint or loose connection within low voltage electrical distribution systems. The solution helps avoid potential downtime resulting from arc flash / power outage incidents. Local and optional cloud-based thermal monitoring, real-time continuous data, immediate alarm alert notifications, historical logging/trending, and reporting of electrical equipment also help ensure predictive maintenance and electrical asset integrity.


Small isolated sensors installed in switchgear, switchboards, panel boards, and ATS systems used in industrial and commercial applications continuously monitor the thermal condition of critical joints in energized electrical equipment such as bus joints, lug landings, bus ducts, transformers, and circuit breakers. The SEM3T sensors measure actual temperature of the connection points.


By comparison, traditional infrared thermography (IR) scans cannot easily detect obscured connections. As such scans are typically scheduled on a regular basis, it lessens the likelihood of detecting a problem at the immediate outset and increases time and money spent to remedy it. IR scans also require manual inspection, whereas SEM3T system sensors do not require physical inspection or calibration. This enables permanent, non-invasive, 24/7 detection of hot spots at an early stage of development.


To learn more about the Siemens SEM3T system, please visit


SEM3T is a trademark of Siemens and/or its affiliates in some countries.



About Siemens


Siemens Smart Infrastructure (SI) is shaping the market for intelligent, adaptive infrastructure for today and the future. It addresses the pressing challenges of urbanization and climate change by connecting energy systems, buildings and industries. SI provides customers with a comprehensive end-to-end portfolio from a single source – with products, systems, solutions and services from the point of power generation all the way to consumption. With an increasingly digitalized ecosystem, it helps customers thrive and communities progress while contributing toward protecting the planet. SI creates environments that care. With around 72,000 employees worldwide, Siemens Smart Infrastructure has its global headquarters in Zug, Switzerland, and its U.S. corporate headquarters in Buffalo Grove, Illinois, USA.


Siemens Corporation is a U.S. subsidiary of Siemens AG, a global technology powerhouse that has stood for engineering excellence, innovation, quality, reliability and internationality for more than 170 years. Active around the world, the company focuses on intelligent infrastructure for buildings and distributed energy systems and on automation and digitalization in the process and manufacturing industries. Siemens brings together the digital and physical worlds to benefit customers and society. Through Mobility, a leading supplier of intelligent mobility solutions for rail and road transport, Siemens is helping to shape the world market for passenger and freight services. Via its majority stake in the publicly listed company Siemens Healthineers, Siemens is also a world-leading supplier of medical technology and digital health services. In addition, Siemens holds a minority stake in Siemens Energy, a global leader in the transmission and generation of electrical power that has been listed on the stock exchange since September 28, 2020. In fiscal 2020, Siemens Group USA generated revenue of $17 billion and employs approximately 40,000 people serving customers in all 50 states and Puerto Rico.


Siemens Contact for Journalists               

Allison Britt