Deutsch: Arrester, trennen / Español: Arrestador, desconectar / Português: Arrester, desconectar / Français: Arrêter, déconnecter / Italiano: Arresto, disconnettere /

Arrester, disconnect pertains to a means for disconnecting an arrester after failure in order to prevent a permanent fault on the circuit. It also gives indication of a failed arrester.


In the industrial context, a disconnect arrester refers to a safety device used to protect electrical systems and equipment from damage caused by overvoltage conditions or faults. It serves as a critical component in electrical distribution systems, providing a means to isolate circuits and disconnect power in case of emergencies or abnormal conditions. Arrester, disconnect devices are designed to interrupt electrical current flow swiftly and effectively, preventing potential hazards such as fires, equipment damage, or electrical shock. They typically consist of switches, circuit breakers, or fuses integrated with surge arresters or protective relays to detect and respond to abnormal voltage spikes or short circuits. The design and installation of arrester, disconnect devices are governed by industry standards and regulatory requirements to ensure their reliability and effectiveness in safeguarding industrial electrical systems.

Application Areas

Treatment and Risks

  • Regular inspection, testing, and maintenance of arrester, disconnect devices to verify proper operation and reliability
  • Prompt replacement or repair of faulty or damaged components to maintain system integrity and safety
  • Training and education for personnel on proper usage, handling, and maintenance procedures for arrester, disconnect devices
  • Implementation of safety protocols and procedures to mitigate risks associated with electrical faults, overloads, or surges
  • Risks include equipment malfunction, inadequate protection, and potential safety hazards if arrester, disconnect devices fail to operate correctly.


  • Installation of arrester, disconnect switches in electrical panels to isolate circuits during maintenance or repair activities
  • Integration of surge arresters with disconnect switches in power distribution systems to protect sensitive equipment from lightning strikes or voltage surges
  • Implementation of motor circuit disconnects in industrial machinery to provide a means of isolating power during maintenance or emergency situations
  • Incorporation of automatic disconnect relays in substation protection systems to isolate faulted circuits and prevent cascading failures

Similar Concepts and Synonyms

  • Protective disconnect
  • Surge protector
  • Overvoltage arrester
  • Circuit breaker
  • Safety switch


In the industrial context, an arrester, disconnect is a safety device used to protect electrical systems and equipment from damage caused by overvoltage conditions or faults. It plays a critical role in interrupting electrical current flow and isolating circuits to prevent hazards such as fires, equipment damage, or electrical shock. Treatment involves regular inspection, maintenance, and training to ensure proper operation and reliability. Examples include their use in electrical distribution systems, power generation infrastructure, and industrial machinery. Synonyms for arrester, disconnect include protective disconnect, surge protector, and circuit breaker. Overall, arrester, disconnect devices are essential for maintaining safety and reliability in industrial electrical systems.


See also:
"disconnect" is in the UNSPSC Code "26131813"
Switchyard disconnect switches

Other Database Pages Exist for this Phrase:
Arrester (Arrester is characterized as a protective device. ..)

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