Eaton – Eaton acquires Exertherm


Marks further expansion into continuous thermal monitoring, improving safety and reliability of critical electrical equipment in key markets like data centers


DUBLIN – Intelligent power management company Eaton (NYSE:ETN) today announced it has completed the acquisition of Exertherm, a privately owned, U.K.-based provider of thermal monitoring solutions for electrical equipment.

“Exertherm is a company known for innovative technology and trusted solutions for data centers and other applications,” said Mike Yelton, president, Americas Region, Electrical Sector. “We look forward to the opportunity to integrate thermal monitoring solutions more broadly into our Brightlayer software suites. This will enable our customers to optimize their operations and enhance business performance by realizing the possibilities embedded in their data.”


Learn how Eaton’s Brightlayer offering makes it easier to leverage the intelligent, actionable insights that come from customer data:  

Exertherm has pioneered continuous temperature monitoring solutions for more than a decade. Their innovative, market-leading solutions are integrated into low-voltage and medium-voltage switchgear, busway, and motor control centers and are deployed globally, protecting customers’ most vital electrical infrastructure.



EMR Analysis

More information on Eaton: See full profile on EMR Executive Services

More information on Craig Arnold (Chairman and Chief Executive Officer, Eaton): See full profile on EMR Executive Services

More information on Olivier Leonetti (Senior Leadership Team – Executive Vice President and Chief Financial Officer, Eaton): See full profile on EMR Executive Services

More information on Mike Yelton (Senior Leadership Team – President, Electrical Sector, Americas Region, Eaton): See the full profile on EMR Executive Services

More information on Brightlayer by Eaton: + Intelligent power management uncovers the most relevant data and backs real-time decision-making. Building upon the foundation of our Brightlayer platform, insights make a difference, digital solutions take industry challenges head-on and collaboration advances technology. Through innovative thinking and processes, with Brightlayer we apply the right balance of tools and services to solve power management challenges and ensure a safer, smarter, more efficient digital future.

No matter how you want to drive digital enablement, Brightlayer lets you access data, insights and digital solutions to best meet your business needs. It all starts with your assets and the data they can provide you. We’re focused on helping you capitalize on the data and insights from those assets to drive operational value.





More information on Exertherm: + Headquartered in the United Kingdom, Exertherm is a dynamic and pioneering company that has rapidly expanded its reach to encompass every corner of the globe. With a strong commitment to innovation, we specialize in developing cutting-edge Continuous Thermal Monitoring (CTM) technology that has redefined the electrical maintenance landscape.

What began as a small family business has grown to become a true pioneer of thermal sensor technology, transforming markets and industries with our innovative solutions.

Today, Exertherm boasts a presence in every region of the world. Our international network of partners, distributors, and collaborators ensures that our groundbreaking products reach and enrich organizations on a global scale.

Driven by an ambition to deliver best in class thermal monitoring technology, our vision is for a world where operational downtime, the risk to personnel, and revenue loss through electrical failure are minimized.

Exertherm, privately owned, U.K.-based provider of thermal monitoring solutions for electrical equipment has pioneered continuous temperature monitoring solutions for more than a decade. Their innovative, market-leading solutions are integrated into low-voltage and medium-voltage switchgear, busway, and motor control centers and are deployed globally, protecting customers’ most vital electrical infrastructure.

  • 5000+ Projects
  • 30+ Countries
  • 300+ End Users
  • 50+ Partners

More information on Alan Moug (Chief Executive Officer, Exertherm): See full profile on EMR Executive Services





EMR Additional Notes:

  • Extra Low-Voltage (ELV):
    • Voltage of 50V or less (AC RMS), or 120V or less (ripple-free DC).
  • Low-Voltage (LV):
    • The International Electrotechnical Commission (IEC) defines supply system low voltage as voltage in the range 50–1000 V AC or 120–1500 V DC.
  • Medium-Voltage (MV):
    • Medium-voltage circuit breakers rated between 1 and 35/72 kV.
  • High-Voltage (HV):
    • The International Electrotechnical Commission define high voltage as above 1000 V for alternating current, and at least 1500 V for direct current.
  • Super High-Voltage: 
    • Is >300kV.
  • Ultra High-Voltage: 
    • Is >1.000kV.


  • Switchgears:
    • Broad term that describes a wide variety of switching devices that all fulfill a common need: controlling, protecting, and isolating power systems. This definition can be extended to include devices to regulate and meter a power system, circuit breakers, and similar technology.
    • Switchgear contains fuses, switches, and other power conductors. However, circuit breakers are the most common component found in switchgear.
    • Performs the function of controlling and metering the flow of electrical power in addiction to acting as interrupting and switching devices that protects the equipment from damage arising out of electrical fluctuations.
    • There are three types of switch gears namely LV (Low voltage), MV (Medium voltage) and HV (High voltage) Switchgear.
  • Circuit Breakers:
    • Mechanical electrical switch designed to protect an electrical circuit from damage caused by overcurrent/overload or short circuit. Its basic function is to interrupt current flow after protective relays detect a fault.
    • By definition a circuit breaker is an electrical safety device, a switch that automatically interrupts the current of an overloaded electric circuit, ground faults, or short circuits.
  • Fuses:
    • Single time mechanical circuit interruption in an over-current situation through fusion of a graded electrical conductor. Employed in 30KV to 100KV range.
    • Electrical safety device that operates to provide overcurrent protection of an electrical circuit. Its essential component is a metal wire or strip that melts when too much current flows through it, thereby stopping or interrupting the current.
  • ACB (Air Circuit Breakers): 
    • Uses air as insulating medium.
    • Air circuit breaker is a circuit breaker for the purpose of protecting low voltage circuit, mainly for energizing and cutting off high current
  • VCB (Vacuum Circuit Breakers): 
    • Vacuum is used as the means to protect circuit breakers.
    • Circuit breaker where the arc quenching takes place in a vacuum medium. The operation of switching on and closing of current carrying contacts and interrelated arc interruption takes place in a vacuum chamber in the breaker which is called a vacuum interrupter.
  • AIS (Air Insulated Switchgears):
    • Air is used for insulation in a metal-clad system
    • Secondary power distribution device and medium voltage switchgear that helps redistribute the power of a primary power distributor powered by a high voltage distribution transformer. AIS controls, protects and isolates electrical equipment in power transmission and distribution systems.
  • GIS (Gas Insulated Switchgears): 
    • All working components assembled under SF6 (Sulfur Hexafluoride HV Switchgears) gas-tight casing.
    • Compact metal encapsulated switchgear consisting of high-voltage components such as circuit-breakers and disconnectors, which can be safely operated in confined spaces.
  • OCB (Oil Circuit Breakers): 
    • Vapors a portion of oil to blast a jet of oil through the arc.
    • Circuit breaker which uses insulating oil as an arc quenching medium
  • Hybrid Circuit Breakers:
    • Combines Air-insulated and SF6 Gas-insulated technologies.
  • MCB (Miniature Circuit Breakers): 
    • Employed in domestic households to safeguard against overload. Rated current max. 100 A.
    • Electrical switch that automatically switches off the electrical circuit during an abnormal condition of the network means an overload condition as well as a faulty condition. Nowadays we use an MCB in a low-voltage electrical network instead of a fuse.
    • Circuit breakers have a tripping relay mechanism, while MCB has a tripping release mechanism. Circuit breakers have a high rupturing capacity, but the MCB has a low rupturing capacity. Circuit breakers are used in High Voltage systems, while MCBs are used in Low Voltage systems.
  • RCCB (Residual Current Circuit Breakers): 
    • To safeguard against electrical shock arising out of indirect contact and includes the detection of residual current such as earth leakage.
    • Current sensing device, which can automatically measure and disconnect the circuit whenever a fault occurs in the connected circuit or the current exceeds the rated sensitivity.
  • MCCB (Molded Case Circuit Breakers): 
    • Incorporates insulating material in the form of molded casing within circuit breaker. Rated current up to 2,500 A.
    • MCCB has a higher interrupting capacity, meaning it can handle larger loads than a conventional breaker. Generally, a standard breaker is used for residential and light commercial applications, while an MCCB is suitable for industrial and heavy commercial applications.
  • Disconnectors: 
    • Automatic switching device that offers specific isolating distance on the basis of specific requirements.
    • Disconnectors (also known as Isolators) are devices which are generally operated off-load to provide isolation of main plant items for maintenance, or to isolate faulted equipment from other live equipment.
  • Contactors: 
    • Works alike high-current switching systems but at higher voltage rates. Contactors can however not be utilized as disconnecting switches. Contactors are employed in 30KV to 100KV range.
    • Special type of relay used for switching an electrical circuit on or off.
    • Electrical device that is widely used for switching circuits on and off. As such, electrical contactors form a subcategory of electromagnetic switches known as relays. A relay is an electrically operated switching device that uses an electromagnetic coil to open and close a set of contacts.
  • PTCB eFuse Circuit Breaker:
    • Electronic micro fuse for DIN rail protecting electronically nominal currents below 1A to facilitate the clear detection of faults and supports precise fault localization and fast recovery. Response times are shorter compared to conventional fuse protection and the exact current value can be adjusted at any time
  • RCD (Residual Current Devices): 
    • Sensitive safety device that switches off the electricity within 10 to 50 milliseconds if there is an electrical fault. An RCD is is designed to protect against the risks of electrocution and fire caused by earth faults.
    • The difference between a circuit breaker and an RCD switch is the purpose of a circuit breaker is to protect the electrical systems and wiring in a home while the purpose of an RCD switch is to protect people from electrocution.
  • RCBO (Residual Current Breaker with Over-Current): 
    • RCDs can protect against electric shocks, residual currents, and earth faults. On the other hand, RCBOs can do what RCDs can do and protect a circuit from short circuits and overload. RCBOs are essentially a combination of MCB and RCCB.
    • An RCBO protects electrical equipment from two types of faults; residual current and over current. Residual current, or Earth leakage as it can sometimes be referred to, is when there is a break in the circuit that could be caused by faulty electrical wiring or if the wire is accidentally cut.
  • Ring Main Unit (RMU):
    • Medium voltage, gas-insulated, fully sealed cabinet used to measure, connect, and integrate transformer protection functions with a fixed type breaker. Ring Main Units are safe, reliable, low-maintenance, and easy to replace switchgear.
    • A ring main unit (RMU) is a factory assembled, metal enclosed set of switchgear used at the load connection points of a ring-type distribution network.
  • Load Center – Panel Board – Switch Board:
    • A load center is used in residential and light commercial applications to distribute electricity supplied by the utility company throughout the home or building to feed all the branch circuits. Each branch circuit is protected by the circuit breaker housed in the load center.  In the event of a short circuit or an overload on a branch circuit, the circuit breaker will cut the power before any potential property damage or personal injury can occur.
    • A load center provides similar functionality in a power distribution system as a switchboard and a panelboard. As far as UL and the NEC standards are concerned, there is no difference between a panelboard and a load center.
    • However, Panelboards are typically deeper than load centers and can accommodate both bolt-on circuit breakers as well as plug-in breakers, whereas a load center is limited to plug-in breakers.
    • Switchboards are often the typical choice for industrial establishments. These panelboards generally house circuit breakers that can manage and supply electricity for machines with high-voltage demands.
    • Panelboards are only accessible from the front (as mentioned above), but switchboards allow rear access as well.
  • Solid-State Circuit Breakers:
    • Solid-state device, electronic device in which electricity flows through solid semiconductor crystals (silicon, gallium arsenide, germanium) rather than through vacuum tubes.
    • The solid-state breaker concept replaces the traditional moving parts of an electromechanical circuit breaker with semiconductors and advanced software algorithms that control the power and can interrupt extreme currents faster than ever before.


  • Busbar – Busway:
    • A busbar is a rigid piece of copper or aluminum, bolted or housed inside switchgear, panel boards, and busway enclosures used to carry large amounts of current / to distribute ac power to the rows of circuit breakers
    • Quite often, busbars have no insulation—they’re protected by a separate enclosure.
    • Busbars are the backbones for most power applications, providing the critical interfaces between the power module and the outside world.
    • They are also used to connect high voltage equipment at electrical switchyards, and low voltage equipment in battery banks.