Técnica de carga

Using the charging technology for electric vehicles safely

Charging cable (IC-CPD)

Safe plug-in solution

Level 1 AC charging involves charging the electric vehicle from a normal outlet at home but requires a special charging cable. This charging cable must have an integrated monitoring system capable of triggering a 6 mA ground fault. These are known as charge current interrupting devices or CCID5. Bender offers ground-fault monitoring sensors for level 1 charging cable manufacturers (level 1 GFCI). These CCID sensors can be used in EVSE cords in accordance with UL 2231 which has several Bender listed devices.

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AC charging

Safe charging of electrical vehicles

Level 2 EVSE can be found at home, in hotels, or at the workplace. The required infrastructure for those charge ports is relatively simple and usually requires only a 120v or 240v connection. Bender's RCMB level 2 ground fault sensing devices monitor circuits effectively for fault currents that can pose hazards to personnel and equipment. These level 2 mA sensing leakage devices are listed to UL2231 and fulfill all the stringent safety requirements.

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DC fast charging

Electrical safety while charging electric vehicles

DC charging allows vehicles to be charged quickly at significantly higher powers. A DC charging station, also called a quick charging station, is usually set up as an unearthed power supply system, which must be monitored by an IMD as specified by the standards.

The concept of quick charging is ideal for short-term recharging during a break at a motorway service station, for example. With increasing battery capacity, the topic is also becoming interesting in the home sector. This is because some vehicles only offer an AC charger with 3.7 or 7.4 kW for larger batteries, which may not leave the battery fully charged overnight. This means that the need for DC wallboxes is also increasing for private spaces.

In DC charging, a distinction is made between two common charging standards. In addition to the CCS standard (Combined Charging System) used in Europe, the Japanese charging standard CHAdeMO (after "CHArge de MOve") is also used for most vehicles from Asian manufacturers.

Both standards differ in the requirements for monitoring the DC charging process. This concerns both the required disconnection times and the limit values for disconnection in the event of a fault, as well as monitoring for symmetrical or asymmetrical faults. Until now, two different devices were necessary for this purpose.

The new insulation monitoring device ISOMETER® isoCHA425HV in combination with the coupling device AGH420-1 supports both charging standards equally. With this combination unit, Bender has now responded to the demands of the market.

It allows switching online between CCS and CHAdeMO via a galvanically isolated Modbus RTU interface. The individual parameters for the respective standard are already stored and can be selected automatically. The device is designed for nominal voltages of up to 1,000 V and thus already takes into account the increasing battery voltages.

To prevent the insulation monitoring device in the vehicle and the one in the charging station from influencing each other, the device in the vehicle is usually deactivated during the charging process. The insulation monitoring device in the charging station then monitors the complete charging circuit.

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Downloads

NameCategorySizeLanguageTimestampD-/B-Number
Electrical Safety for EV/EVSE Market Segment Brochures 3.4 MB EN2024/01/1515.01.2024
Charging Electric Vehicles - Protection Against Electric Shock by DC Fault Current Sensor Units Technical Article 931.2 KB EN2019/05/1313.05.2019

Products

Ground-Fault Monitoring, Ungrounded

ISOMETER® IR155-3203 / IR155-3204
ISOMETER® IR155 03/04 Series

Ground-fault monitoring device for ungrounded DC drive systems in electric vehicles

ISOMETER® isoEV425 mit AGH420
ISOMETER® isoEV425 with AGH420

- This device series is in the discontinuation phase. -

ISOMETER® isoCHA425HV mit AGH420-1
ISOMETER® isoCHA425HV with AGH420-1/AGH421-1

Insulation monitoring device with coupling device for unearthed DC systems (IT systems) DC 0 V to 1000 V Suitable for DC charging stations according to CCS or CHAdeMO

ISOMETER® isoCHA425

Insulation monitoring device for unearthed DC systems (IT systems) DC 0 V to 400 V. Suitable for DC charging stations according to CCS or CHAdeMO

Ground-Fault Monitoring for Grounded Systems

RCMB121
benvac® RCMB121

AC/DC sensitive residual current monitoring for AC charge stations

RCMB104
RCMB104

AC/DC sensitive residual current monitoring module for electric vehicle charging systems

RDC121
benvac® RDC121

DC sensitive residual current monitoring for AC charge stations

LINETRAXX® RCMB42…EC
LINETRAXX® RCMB42…

AC/DC sensitive ground-fault monitoring module for fault current monitoring of AC charging stations for electric vehicles

RDC104-4
RDC104-4

DC sensitive residual current monitoring module for electric vehicle charging systems

Charge Controller

CC613 Laderegler
CC613 Charge Controller

The next generation of smart charge controllers

Ground-Fault Monitoring, Ungrounded

ISOMETER® IR155-3203 / IR155-3204
ISOMETER® IR155 03/04 Series

Ground-fault monitoring device for ungrounded DC drive systems in electric vehicles

Details
ISOMETER® isoEV425 mit AGH420
ISOMETER® isoEV425 with AGH420

- This device series is in the discontinuation phase. -

Details
ISOMETER® isoCHA425HV mit AGH420-1
ISOMETER® isoCHA425HV with AGH420-1/AGH421-1

Insulation monitoring device with coupling device for unearthed DC systems (IT systems) DC 0 V to 1000 V Suitable for DC charging stations according to CCS or CHAdeMO

Details
ISOMETER® isoCHA425

Insulation monitoring device for unearthed DC systems (IT systems) DC 0 V to 400 V. Suitable for DC charging stations according to CCS or CHAdeMO

Details

Ground-Fault Monitoring for Grounded Systems

RCMB121
benvac® RCMB121

AC/DC sensitive residual current monitoring for AC charge stations

Details
RCMB104
RCMB104

AC/DC sensitive residual current monitoring module for electric vehicle charging systems

Details
RDC121
benvac® RDC121

DC sensitive residual current monitoring for AC charge stations

Details
LINETRAXX® RCMB42…EC
LINETRAXX® RCMB42…

AC/DC sensitive ground-fault monitoring module for fault current monitoring of AC charging stations for electric vehicles

Details
RDC104-4
RDC104-4

DC sensitive residual current monitoring module for electric vehicle charging systems

Details

Charge Controller

CC613 Laderegler
CC613 Charge Controller

The next generation of smart charge controllers

Details

Standards

IEC 62752

In-Cable Control and Protection Device for mode 2 charging of electric road vehicles (IC-CPD)

IEC 61851-xx
DIN EN 62752

Ladeleitungsintegrierte Steuer- und Schutzeinrichtung für die Ladebetriebsart 2 von Elektro-Straßenfahrzeugen (IC-CPD)

SAE J1772
UL 2231-1
UL 2231-2
DIN IEC/TS 61439-7

Niederspannungs-Schaltgerätekombinationen - Teil 7: Schaltgerätekombinationen für bestimmte Anwendungen wie Marinas, Campingplätze, Marktplätze, Ladestationen für Elektrofahrzeuge 

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