Digital guide
You are here:
AEG CGP31-R
Product Name: AEG Protec CGP31-R Residual Current Circuit Breaker (RCCB)
Product Category: Earth Leakage Protection Device
Model Series: AEG Protec CGP31 Series
Pole Configuration: 3-Pole + N (3P+N)
Rated Residual Operating Current (IΔn): 30mA (standard variant; other options: 100mA, 300mA, 500mA)
Detailed content
Product Description:
The AEG CGP31-R is a 3-pole plus neutral residual current circuit breaker (RCCB) designed to provide protection against electric shock and fire caused by earth leakage currents. It detects residual (earth fault) currents and disconnects the circuit within milliseconds when the leakage exceeds the rated residual operating current.
Technical Specifications:
- Pole Configuration: 3P + N (4-pole)
- Rated Current (In): 16A / 25A / 40A / 63A / 80A / 100A (variant-dependent)
- Rated Residual Operating Current (IΔn): 30mA (personnel protection) / 100mA / 300mA / 500mA (fire protection)
- Rated Voltage (Ue): 230/400V AC (3-phase 4-wire)
- Rated Short-Circuit Breaking Capacity (Icn): 6 kA (conditional)
- Rated Making and Breaking Capacity (Im): 500A
- Tripping Time at IΔn: ≤ 300ms (at 1× IΔn), ≤ 40ms (at 5× IΔn)
- Type: Type A (detects AC and pulsating DC residual currents) — some variants Type AC
- Standards Compliance: IEC 61008-1, EN 61008-1, IEC 61009-1
- Pollution Degree: 2
- Overvoltage Category: III
- Installation: DIN 35mm rail (EN 60715 TH35)
Material Composition:
- Housing: Polyamide 6.6 (PA66) — UL94 V-0, halogen-free
- Contact System: Silver-alloy (AgNi) for main contacts; silver-alloy for residual current sensing contacts
- Trip Mechanism: Electromechanical — toroidal transformer + polarized relay (no external power required)
Functional Features:
- Electromechanical operation — trips reliably even with supply voltage loss
- Test button (T) — verifies RCD functionality monthly
- Reset button (R) — manual reset after trip (indicates fault)
- ** aux terminal (S)** — for remote signaling (NO/NC changeover contact, 10A/250V)
- Visible trip indicator — mechanical flag shows tripped state
Structural Features:
- Width: 72mm (4-pole module)
- Height: 85mm
- Depth: 71mm
- Terminal capacity: 1–25mm² (solid/stranded)
Advantages:
- Electromechanical design — no dependence on auxiliary power for tripping
- Type A detection — suitable for circuits with inverter-driven loads (VFDs, LED drivers)
- High sensitivity (30mA) for personnel shock protection
- Built-in test and reset functions
Applicable Industry:
- Residential main switchboard protection
- Commercial building distribution boards
- Hospital and medical facility circuits
- Construction site temporary power
- EV charging station protection
