Information
Definition
Overcurrent protection protects conductors and equipment against excessive current caused by overloads or short circuits. It is normally assessed during product selection, circuit design, installation verification and maintenance of EV charging equipment.
Why it matters
Correct overcurrent protection is fundamental to UK EV charger circuit safety, cable sizing and compliance with installation requirements. For UK users, it supports safer specification decisions and reduces the risk of misunderstanding how a charger should be protected or installed.
References
Standards and regulations
BS 7671
BS 7671 is the UK national standard for electrical installations, covering the design, erection, inspection, testing and verification of low-voltage electrical systems. Section 722 contains specific requirements for supplies to electric vehicles.