EV Charging Cable Size Calculator (AREI / RGIE)

Installation Parameters AREI / RGIE

Calculation Mode

Circuit Type

Voltage (V)

Charger Power (kW)

Cable & Line Specifications

Insulation & Type (AREI)

Installation Method (Plaatsingswijze)

Distance (L)

Upstream MCB (In)

Circuit Breaker Curve

Power Factor (cos φ)

Max Voltage Drop (%)

Source Short-Circuit Ik (A)

Recommended Sizing (AREI / RGIE)

- mm²

Compliant with Belgian AREI & IEC 60364-7-722

Limiting Factor: -

Design Load (IB)

- A

100% continuous EV load

Cable Capacity (Iz)

- A

Thermal capacity limit

Voltage Drop (ΔV)

- V

- % (Max allowed 3.0%)

Belgian AREI / RGIE EV Compliance Check: Dedicated power circuit with minimum 2.5 mm² cross-section. Upstream protection must be coordinated (I_B ≤ I_n ≤ I_Z). Residual current protection requires a 30mA Type A RCD (with 6mA DC detection / RDC-DD) or Type B 30mA RCD per charge point.

Voltage Drop Analysis

Short-Circuit & MCB Trip Check

User Manual & Guide

User Manual & Engineering Guide

Step-by-step guide to calculating EV charging cable sizes compliant with AREI / RGIE and IEC 60364-7-722.

Belgian AREI Boek 1

1. Select Presets or Set Power / Current

Click a Quick Preset (e.g. 11 kW 3-Phase or 7.4 kW 1-Phase) or choose Power (kW) vs. Current (A) mode to enter custom EVSE parameters.

2. Circuit Type & Cable Specification

Select your electrical grid type (3-Phase 400V, 1-Phase 230V, or Belgian 3x230V Delta) and cable insulation (XVB standard, halogen-free XGB, or direct-burial EXVB).

3. Installation Method & Cable Run Distance

Choose the AREI installation method (in insulated wall, masonry conduit, surface clipped, cable tray, or underground trench) and enter total route length in meters.

4. Upstream Protection & Sizing Verification

Configure upstream breaker curve (Curve C recommended for EV) and rating. Review continuous load current (IB), cable capacity (Iz), voltage drop (ΔV ≤ 3%), and short-circuit trip coordination (Ik).

5. Export Official PDF Engineering Report

Click "Download Sizing PDF Report" at the bottom of the results to generate a compliant calculation sheet for AREI inspection dossiers.

EV Cable Size Calculator