Weidmuller ESX10-T Electronic Circuit Breaker

The Weidmuller ESX10-T Series circuit protectors have remote reset capabilities that operate through the use of an electronic signal. These circuit protection devices are compact and combine electronic trip characteristics and active current limitation to allow selective disconnection of loads that are connected to 24VDC power supplies (which are widely used in industry today). Selective load protection prevents complete shutdown of the system by quickly disconnecting the faulty path when an overload or short circuit occurs. In other words, selective load protection prevents complete shutdown of the system or output in the event of an overload with the result that one faulty load in the system would otherwise lead to complete disconnection of all loads. This eliminates the need to open an enclosure, dispatch repair personnel and risk their exposure to electrical components.

According to Jay Armstrong of Specialty Control Systems,

“These innovative circuit breakers will find a great deal of use in applications where volatile gasses are present or where these gasses have the proclivity produce explosive hazards.”

Armstrong went on to say that the traditional circuit breakers create an electrical arc that could be disastrous if certain conditions exist.

Typical applications for the Weidmuller ESX10-T include: automation systems (e.g. machine tool, packaging machines) and process control systems (petro/chemical, pharmaceutical, food and beverage, etc.) where selective disconnection is vital and an integral safety technology exists, such as a safety PLC or similar system.

Through selective disconnection feature, the Weidmuller ESX10-T responds much faster to overload or short-circuit conditions than the switch-mode power supply. This is achieved by active current limitation. The Weidmuller ESX10-T limits the highest possible current to 1.3 to 1.8 times the selected rated current of the circuit breaker. Thus, it is possible to switch on capacitive loads of up to 20,000 μ F, but they are disconnected only in the event of an overload or short circuit. For optimal alignment with the characteristics of the application the current rating of the Weidmuller ESX10-T can be selected in fixed values from 0.5 A to 12 A. Failure and status indication are provided by The Weidmuller ESX10-T Offers a multicolored LED light to indicate failure and working status of the circuit breaker in tandem with an integral, short-circuit-proof status output or relay signal contact. Another useful feature is the ability to access remote operation by use of remote reset signal or remote ON/OFF control signal. If the remote function is not the preferred method the manual ON/OFF button allows for separate actuation and reset of individual load circuits.

This resourceful circuit breaker features:

• Selective load protection, electronic trip characteristics
• Active current limitation for safe connection of capacitive loads up to 20,000 μ F and on overload/short-circuit
• Current ratings 0.5A through 12A
• Reliable overload disconnection with 1.1 X In plus, even with long load lines or small cable cross sections.
• Manual ON/OFF button
• Control input IN+ for remote ON/OFF signal (option)
• Electronic reset input (option)
• Clear status and failure indication though LED, status output SF or Si contact F
• Integral fail-safe element adjusted to current rating
• Width per unit only 12.5 mm
• Rail mounting
• Ease of wiring though busbar LINE+ and 0V as well as signal bars and bridges

For more information on the product or applications for use contact one of our qualified Weidmuller product specialists at Specialty Control Systems. Not only does Specialty Control Systems have the largest inventory of Weidmuller parts in the nation, but they have the largest knowledgebase of Weidmuller part applications and can help you save time and money when deciding on the right parts.