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セント・ドーチェスター・センター（マサチューセッツ州02124
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月曜日～金曜日：午前7時～午後7時
週末午前10時～午後5時
KY-40/G1500 直流サージ保護装置（タイプ2、1500V）
- について 直流1500V SPD KY-40/G1500 provides advanced Type 2 surge protection for modern PV systems.
- Designed for utility-scale solar plants, central inverters, and large PV combiner boxes operating at 1500VDC.
- IEC 61643-31 certified, DIN-rail design, shared wiring and dimension diagrams with KY T2 series.
概要
について 直流1500V SPD KY-40/G1500 is a Type 2 surge protective device optimized for
high-voltage photovoltaic installations. With support for 1500VDC arrays, it ensures reliable surge
suppression for PVコンバイナーボックス, inverter DC inputs, and DC feeders in
utility-scale solar farms. This model is the preferred choice for large projects where efficiency and safety at
higher system voltages are critical. Compliant with
IEC 61643-31CE、UKCA、RoHS。
主な特徴
- 直流1500V SPD Type 2 protection for large PV arrays, central inverters, and high-voltage combiner boxes.
- Enhanced discharge capacity to meet the needs of utility-scale and ground-mounted PV plants.
- Modular replaceable cartridges with visible indicator for maintenance.
- Remote alarm contacts (NO/NC) available, enabling monitoring in large PV installations.
- Part of the KY T2 surge protection series, designed for seamless integration with fuses and disconnectors.
仕様
| タイプ | タイプ2（T2） |
|---|---|
| システム電圧 (Uシーピーブイ) | DC1500V |
| 公称放電電流 (In) | 20 kA |
| 最大放電電流 (Iマックス) | 40 kA |
| 電圧保護レベル (U)p) | ≤ 5.0 kV |
| 応答時間 (ta) | < 25 ns |
| PV短絡耐量（Iスカップ) | 20 kA |
| 保護モード／トポロジー | Uタイプ |
| アラーム接点（オプション） | 220V、0.5A、無/無C |
| 推奨上流ヒューズ | LS7-50k (データシートによる) |
| 配線／端子 | 6-35 mm² ネジ端子 |
| 取り付け | 35 mm DINレール |
| エンクロージャー / 可燃性 | プラスチックハウジング、UL94-V0 |
| Operating Conditions | -40℃ ~ +70℃; ≤95% rh |
| 外形寸法（W×H×D） | 36 × 83 × 67 mm |
| 規格とコンプライアンス | IEC 61643-31:2018、GB/T 18802.31、CE、UKCA、RoHS |
配線と寸法
アプリケーション
- Utility-scale solar plants and ground-mounted PV farms designed with 1500V arrays.
- Central and string inverters operating at 1500VDC inputs.
- Large-scale PV combiner boxes requiring stable Type 2 surge protection.
よくあるご質問
Q1. What makes the 直流1500V SPD KY-40/G1500 suitable for large PV plants?
It supports 1500V systems and offers high surge capacity, making it ideal for utility-scale PV farms and centralized inverters.
Q2. Can KY-40/G1500 be integrated with central inverters?
Yes. It is specifically designed to protect inverter DC inputs and feeders at 1500VDC.
Q3. Does the KY-40/G1500 include alarm contacts?
Yes. Optional NO/NC alarm terminals are available, allowing remote monitoring in large PV projects.
Q4. Which certifications does KY-40/G1500 comply with?
IEC 61643-31, GB/T 18802.31, CE, UKCA, and RoHS certifications are included.
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