IST 40 4P 40KA - Schneider - Products - Easy Semiconductor Technology (Hong Kong) Limited 易擇半導體科技(香港)有限公司

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IST 40 4P 40KA

The Schneider Electric iST 40 4‑Pole Surge Protective Device is a Type 2 surge protection module designed to protect low‑voltage electrical distribution systems from transient overvoltages caused by lightning strikes, switching events, and other surge phenomena

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Specifications General Product Type: Surge Protective Device (SPD) Model/Series: iST 40 4P Number of Poles: 4 (three phases + neutral) Surge Protection Class: Type 2 (distribution level surge protection) Mounting: DIN‑rail (35 mm) compatible Electrical Ratings Maximum Discharge Current (Imax): 40 kA (8/20 µs) per mode Nominal Discharge Current (In): Specified for effective surge energy handling Rated Operating Voltage (Ue): Designed for low‑voltage AC distribution systems (e.g., 230/400 V AC) Maximum Continuous Operating Voltage (Uc): Suitable for continuous operation at system voltage Protection Technology: Metal‑Oxide Varistor (MOV) based surge suppression elements Protection & Performance Surge Modes Covered: Line‑to‑Neutral (L‑N) Line‑to‑Earth (L‑PE) Neutral‑to‑Earth (N‑PE) Voltage Protection Level: Engineered to clamp transient overvoltages to safe levels for connected loads Response Time: Rapid response to transient surge events Status Indicators: Visual indication of SPD health or end‑of‑life condition Mechanical & Environmental Housing: Compact module suitable for panel and distribution board installation Terminal Connections: Screw or clamp type terminals for secure conductor attachment Operating Environment: Designed for standard indoor electrical distribution applications Installation Location: Typically installed at service entrance or within branch distribution panel