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1.What is the appropriate protection for EV chargers?
Electric mobility presents a new paradigm for electricity specialists. As the number of electric vehicles on the road increases, there will be a greater need for charging points, with residual current protection being vital to ensure that facilities and people alike are kept safe. The use of this type of device in public spaces and by non-specialized personnel requires adequate residual current protection.
2.Fault currents of up to 6mA DC can be present while charging electric vehicles. Given this possibility, a conventional Type AC or A RCCB would not be able to operate correctly, as it could lead to unwanted trips or, in the worst case, stop protecting altogether.
Electrical Features |
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| Mode | Electromagnetic | |
| Type (wave form of the earth leakage sensed) | B | |
| Rated current In | 25,40,63A | |
| Poles | 2P, 4P | |
| Rated voltage Ue | 2P 240V~, 4P 415V~ | |
| lnsulation voltage Ui | 500V | |
| Rated frequency | 50/60Hz | |
| Rated residual operation current(I△n) | 30mA | |
| Rated residual operating current(I△dc) | 6mA | |
| Rated residual making and breaking capacity (IAm) | 500A(In≤40A), 10In (In＞40A) | |
| Short-circuit current Inc=l△c | 10,000A | |
| SCPD fuse |  |
|
| Break time under l△n | ≤0.1s | |
| Rated impulse withstands voltage (1.5/50) Uimp | 4000V | |
| Dielectric test voltage at ind.Freq. for 1min | 2.5kV | |
| Electrical life | 2,000 Cycles | |
| Mechanical life | 4,000 Cycles | |
Installation |
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| Contact position indicator | Yes | |
| Protection degree | IP20 | |
| Ambient temperature (with daily average≤35℃) | -5℃~+40℃ | |
| Storage temperature | -25℃~+70℃ | |
| Terminal connection type | Cable/Pin-type busbar/U-type busbar | |
| Terminal size top/bottom for cable | 35mm2 18-3AWG | |
| Terminal size top/bottom for busbar | 35mm2 18-3AWG | |
| Tightening torque | 2.5Nm 22In-lbs | |
| Mounting | On DIN rail EN60715(35mm) by means of a fast clip device | |
| Connection | Power supply in both directions | |
Tripping Current Range |
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| Lagging Angle | I△n＞0.01A | I△n≤0.01A |
| 0° | 0.35I△n≤I△≤1.4I△n | 0.35I△n≤I△≤2I△n |
| 90° | 0.25I△n≤I△≤1.4I△n | 0.25I△n≤I△≤2I△n |
| 135° | 0.11I△n≤I△≤1.4I△n | 0.11I△n≤I△≤2I△n |
| Poles | Rated Current (A) | Sensitivity |
| 30mA | ||
| 1P+N | 25A | EKL6-100B-1N2530D6 |
| 40A | EKL6-100B-1N4030D6 | |
| 63A | EKL6-100B-1N6330D6 | |
| 3P+N | 25A | EKL6-100B-3N2530D6 |
| 40A | EKL6-100B-3N4030D6 | |
| 63A | EKL6-100B-3N6330D6 |
