コンタクタ,サーキットブレーカー,ソーラーインバーター,電気メーター,太陽電池
シュナイダー A9L16482: Acti9 iPRD1 12.5r 3P+N Surge Protective Device
A9L16482 is a Type 1+2 組み合わせた surge protective device (SPD) シュナイダーエレクトリックの Acti9 シリーズから, specially designed for 3P+N three‑phase four‑wire systems. It provides comprehensive lightning and surge protection with remote signaling function, suitable for power input points of residential and small commercial buildings.
- コアパラメータの概要
| アイテム | 仕様 |
| モデル | A9L16482 (Acti9 iPRD1 12.5r) |
| 保護タイプ | タイプ 1+2 複合SPD (protects against direct and indirect lightning strikes) |
| ポール構成 | 3P+N (3 フェーズ + 中性) |
| 定格電圧 (UC) | 350Vと (phase‑to‑phase), 255Vと (neutral‑to‑earth) |
| 最大放電電流 (アイマックス) | 50の (8/20μs波形) |
| 電圧保護レベル (上) | 1.5kV (phase‑to‑phase), 1kV (neutral‑to‑earth) |
| テクノロジー | MOV (金属酸化物バリスタ) + GDT (ガス排出管) hybrid technology |
| 寸法 | 4 modules wide (72mm), height 89mm, depth 69mm |
| 重さ | 0.649 kg |
| 配線容量 | Solid wire 10–35mm², stranded wire 10–25mm² |
| 接地システム | Compatible with TN‑S and TT systems |
| リモート機能 | With remote signaling contacts, connectable to monitoring systems |
- 技術的特徴
- 一体型 1+2 保護
No need for an extra Type 1 SPD; one unit provides full lightning protection
Suitable for installation in the main distribution board at the building incomer as the first level of surge protection
- Hybrid Protection Technology
GDT: Handles high‑energy direct lightning strikes, with high insulation resistance and low leakage current
MOV: Fast response to induced lightning and switching overvoltages for fine protection
Combined to achieve a wide range of surge current absorption capacity
- 遠隔監視機能
Built‑in status monitoring circuit, outputs operating status via remote signaling contacts
Connectable to PLC or building automation systems for real‑time SPD status monitoring
Automatically sends alarm signals in case of failure for timely maintenance and replacement
- 安全設計
Overcurrent protection to prevent overheating in case of SPD failure
Mechanical status indicator window for clear normal/fault indication
Complies with IEC 61643‑11 and EN 61643‑11
- アプリケーション & インストールに関する推奨事項
推奨アプリケーション
Main distribution boards of residential and small commercial buildings (as first‑level protection)
Power distribution systems near the power input
Intelligent building systems requiring remote monitoring of surge protection status
Three‑phase four‑wire distribution networks with TN‑S and TT earthing systems
インストールに関する注意事項
- Install after a 3P+N circuit breaker, close to the power input
- Connecting cables should be as short and straight as possible (≤50cm recommended) to reduce inductive effects
- Use copper conductor ≥16mm² for earthing; earthing resistance shall comply with local regulations
- Remote signaling contacts can be connected to DC 24V or AC 230V monitoring circuits
- Cooperate with downstream SPDs (タイプ 2/3) to form a multi‑level protection system
- 選択 & Replacement Information
選択基準
System voltage: 350V AC suitable for 400V systems (phase‑to‑phase voltage)
Expected surge current: 50kA suitable for most building power incomers
接地システム: confirm TN‑S or TT
Monitoring requirement: whether remote status monitoring is needed
代替モデル
| モデル | 主な違い | 応用 |
| A9L16481 | Without remote signaling | Basic protection without monitoring |
| A9L16483 | Higher rated current | Higher‑power distribution systems |
| A9L16484 | Different protection level | Applications with special accuracy requirements |
- メンテナンス & 保証
保証期間: 18 月
Regularly check the status indicator (緑色 = 通常, 赤 = 故障)
Inspection and recording are recommended after the SPD operates (even if not damaged)
Replace immediately in case of failure to avoid loss of protection
