What does the standard require?
The ITC-BT-52 regulates charging installations for electric vehicles
ITC-BT-52 requires that “all charging circuits be protected against transient and temporary (permanent) overvoltages.” This protection can be integrated into the charging circuit, next to the charging station or inside it, but it must always be present to ensure the safety of people and equipment.
It defines different installation schemes depending on how the charging point is supplied and how it is integrated into the existing installation.
Scheme 2
Scheme 1 and 3
The solution
Complete protection in a single panel
Standards compliance
Meets the tripping times defined in accordance with UNE-EN IEC 63052, ensuring effective protection against permanent overvoltages and continuity of service
Safety
Type 2 protection against transient overvoltages in accordance with IEC 61643-11 and Class A residual current protection complying with EN 61008-1, EN 61009-1, EN 60947-2 or EN 62423
European quality
Top-grade materials and components of European origin, with responsible and sustainable domestic manufacturing.
Transient (Type 2) and permanent (POP) surge protector
Class A residual current device
Top and bottom pre-punched knockouts to facilitate cable entry
Key lock
Automatic or manual reset
IGA
Pre-wired
Compliant with UNE-EN IEC 63052 and the tripping time curve
Meeting tripping times is key
The UNE-EN IEC 63052 standard (formerly 50550) specifies the maximum operating times in response to permanent overvoltages.
Complying with them prevents damage to the electric vehicle charger, extending its service life, reduces the risk of overheating in the installation and ensures continuity of service, avoiding nuisance tripping due to brief voltage variations.
COMPLIANCE = PROTECTION
EV boxes range
Discover the solutions
Complete solution with a combined Type 2 transient and permanent (POP) surge protector, Class A residual current device and main circuit breaker (IGA) with automatic reconnection. Suitable for Scheme 2, where the dwelling and the charging point share the same meter.
Complete solution with a combined Type 2 transient and permanent (POP) surge protector, Class A residual current device and main circuit breaker (IGA) with built-in manual reset. Ideal for individual charging points in communal car parks in Scheme 1 or 3.
EV solutions catalogue
Discover Cirprotec’s range of surge protection products for electric vehicle charging points. Solutions for safe, compliant and efficient installations.
Do you have questions or need help with your installation?
Our technical team will advise you to find the best solution.