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GB/T 18802.11，20KA

The Schneider GB/T 18802.11 20KA is a surge protective device (SPD) designed according to the GB/T 18802.11 standard for electrical installations. This device is intended to protect electrical circuits and equipment from voltage spikes caused by lightning strikes or other transient voltage surges.

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Parameters: Model: GB/T 18802.11 20KA Type: Surge Protective Device (SPD) Surge Current Rating: 20KA (maximum surge current capacity) Nominal Voltage (Un): Typically 230V/400V (depending on application) Protection Level (Up): Typically ≤ 1.5kV (the voltage that appears across the SPD when the surge current flows through it) Rated Voltage (Ue): 230V AC (single-phase) / 400V AC (three-phase) Frequency: 50/60 Hz Response Time: Less than 25ns (indicating fast response to surge events) Nominal Discharge Current (In): 5kA (per line to ground or line-to-line) Maximum Discharge Current (Imax): 20kA (for short-term surge events) Protection Modes: L-N (Line to Neutral) L-PE (Line to Protective Earth) N-PE (Neutral to Protective Earth) Mounting Type: DIN rail or panel mounting Operating Temperature Range: -40°C to +85°C Certifications: GB/T 18802.11 (Chinese standard for surge protection) CE Mark (for compliance with European Union safety standards)