Choosing the Right Electric Vehicle Charger
The UK market is filled with suppliers offering EV chargers, with new brands emerging all the time. A quick search reveals at least 14 different providers, many offering multiple models. Choosing the right charger starts with ensuring it has CE marking, guaranteeing it meets legal safety and quality standards.
Why CE Marking Matters
Zaptec Pro chargers undergo rigorous testing and certification by the accredited TÜV SÜD in Germany. For installers, this certification confirms that the charger meets all standards required for CE marking, ensuring confidence in both safety and reliability.
Safety Requirements for EV Charger Installation
Installing an EV charger comes with specific safety requirements. A key requirement is that every AC charging connection must include earth fault protection with a trip threshold not exceeding 30mA. This prevents electric shock in the event of a fault.
You can choose from the following protection types:
- Type B
- Type A, combined with equipment that disconnects at DC currents above its guaranteed function level.
- Type F, combined with similar equipment as Type A.
The Role of Earth Fault Protection
Earth fault protection is essential for safeguarding users from electric shocks caused by electrical faults. When a vehicle is charging, its bodywork is grounded. If an earth fault occurs, the protection system automatically disconnects the car from the power supply, preventing the bodywork from becoming live and dangerous.
Built-in Protection in Zaptec Chargers
Zaptec chargers, come with built-in earth fault protection. This eliminates the need for external protection in the fuse box, requiring only:
- An automatic circuit breaker.
- Double-insulated cables between the fuse box and the charger.
This setup simplifies installation, reducing both costs and equipment requirements.
Why Type B Protection is Superior
Zaptec chargers utilise Type B protection, the most advanced system for preventing unnecessary charging interruptions due to harmless DC currents. Unlike Type A protection, which stops charging at DC currents above 6mA (even if they pose no real risk), Type B protection allows for charging in a wider range of conditions without compromising safety.
Automatic Safety Checks with Zaptec
Zaptec chargers make safety effortless by automatically testing earth fault protection before every charge. This eliminates the need for manual testing in the charging station, unlike systems that rely on external fuse box testing. While regular testing of earth fault protection is recommended twice a year, Zaptec’s automation ensures continuous protection.
Reliable and Safe Charging
With built-in protection and automatic safety checks, Zaptec chargers offer a safe and reliable EV charging solution. Whether for home use or larger installations, Zaptec ensures optimal safety without added complexity or extra costs.