PSE250-600-70 - ABB - Products - Easy Semiconductor Technology (Hong Kong) Limited 易擇半導體科技(香港)有限公司

PSE250-600-70

The ABB PSE250-600-70 is a Type 1 + Type 2 Combined Surge Protective Device (SPD) from ABB's advanced PSE series. It functions as a primary high-capacity surge arrester designed for installation at the service entrance (main low-voltage distribution board) of three-phase AC power systems.

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Technical Parameters Parameter Specification / Value Application Standard IEC/EN 61643-11 Protection Type / Class Type 1 + Type 2 Combined (Class I + II) Rated System Voltage (Un) 400 V AC, 3P+N (50/60 Hz) Max. Continuous Operating Voltage (Uc) 255 V AC (Line-Neutral) / 320 V AC (Line-Line) Impulse Discharge Current (Iimp) 10/350 µs 60 kA (per pole, L/N) Nominal Discharge Current (In) 8/20 µs 70 kA (per pole) Maximum Discharge Current (Imax) 8/20 µs 100 kA (per pole) Voltage Protection Level (Up) @ In ≤ 1.8 kV (Line-Neutral) Response Time < 100 ns Short-Circuit Withstand Rating (SCCR) According to IEC 61643-11 Back-up Fuse Recommendation Required. Typically 125 A gL/gG (Must be verified with local regulations and ABB's installation manual). Connection Cross-Section Line & Neutral: 16 - 70 mm² (copper) Earth/PE: 25 - 70 mm² (copper) Housing Material Thermoplastic (UL94 V-0) Protection Degree (IP) IP20 (for indoor installation in a proper enclosure) Operating Temperature Range -40 °C to +80 °C Status Indication Visual window with color flag (Green = OK, Red = Fault/End-of-Life) Mounting DIN-rail mountable (35 mm) Dimensions (H x W x D) Approx. 288 mm x 90 mm x 75 mm (Confirm with official datasheet) Key Model Decode PSE: Series 250: Uc & Platform Code (255/320V) 600: Iimp = 60 kA 70: In = 70 kA