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
1. コアパラメータと技術的特徴
基本仕様
極: 3P (three poles), 三相 4 線配電システムに最適, capable of切断 three-phase power simultaneously.
定格電流: 20あ (under AC-3 duty category, can protect approximately 11kW loads at 400V).
トリッピングカーブ: タイプC (instantaneous tripping at 5-10 定格電流の倍), suitable for conventional loads such as lighting and sockets, and can withstand short-term inrush currents (例えば, fluorescent lamp startup).
遮断容量: 6の (400Vと), meeting the short-circuit protection requirements of most low-voltage power distribution scenarios.
電気的性能
定格動作電圧: 400Vと, supporting 50/60Hz frequency.
Current Limiting Class: クラス 3, which can quickly limit the rise of short-circuit current and reduce the risk of equipment damage.
機械的寿命: 200,000 オペレーション; 電気的寿命: 100,000 オペレーション, ensuring long-term stability and reliability.
環境適応力
動作温度: -35℃～+70℃, 過酷な産業環境に適しています.
Moisture and Heat Resistance: クラス 2 (55℃, 95% relative humidity), suitable for use in humid areas.
2. 認証と規格
国内認証: CCC認証に合格しました, compliant with GB10963.1 “Overcurrent Protection Circuit Breakers for Household and Similar Premises” 標準.
International Certification: CE certified, IECに準拠 60898-1 “Overcurrent Protection Circuit Breakers for Household and Similar Premises” 標準, applicable to global markets.
アイソレーション機能: The handle displays a green indicator when disconnected, meeting the isolation requirements of IEC 60947-2 to ensure maintenance safety.
3. アプリケーションシナリオ
産業オートメーション: Used for short-circuit and overload protection in three-phase motor control circuits, cooperating with contactors to realize motor start-stop control.
Commercial Building Power Distribution: Protection for three-phase lighting systems, air conditioning units, and elevator power supplies in places such as shopping malls and office buildings.
Energy Infrastructure: Protection for output terminals of distributed energy equipment such as photovoltaic inverters and small generators.
Residential Three-Phase Incoming Line: Comprehensive protection of three-phase power for main distribution boxes in high-end residences or small factories.
4. 設置と配線
設置方法: 35mm標準DINレール取り付けをサポート, with a width of only 54mm (3 極), 配電ボックスのスペースを節約する.
配線仕様
主回路: Supports 1-25mm² single-strand hard wires or 1-16mm² flexible wires (with terminals), tightening torque is 2.5N·m.
端子の種類: Tunnel-type terminal design, anti-misoperation and firm wiring, suitable for quick construction.
5. Model Selection and Alternative Solutions
Same Series Alternatives
IC65N-3P/D20A: タイプDカーブ (instantaneous tripping at 10-14 回), suitable for impulsive loads such as motors.
IC65H-3P/C20A: Breaking capacity increased to 10kA, suitable for industrial scenarios with high short-circuit currents.
国際ブランドの代替品
ABB S263-C20: Compatible parameters, similar installation dimensions, breaking capacity 6kA.
Siemens 5SJ6 320-C20: タイプCカーブ, breaking capacity 6kA, with overload alarm function.
6. Price and Purchase Suggestions
Market Reference Price: 約 25-30 yuan for single-pole, 70-90 yuan for 3P model (domestic channels in 2025).
チャネルを購入する
Official Authorized Distributors: Such as Schneider WhatsApp: 0086-13811255435
予防
– For leakage protection, it is necessary to match the Vigi IC65N module (例えば, A9D65232) to achieve 30mA leakage action protection.
– Derating is required in high-temperature environments (>40℃). It is recommended to consult the technical manual or Schneider engineers.
7. メンテナンスとトラブルシューティング
定期点検
– Clean the oxide layer on the contact surface every 6 months to ensure good contact.
– Check the flexibility of the handle operation to avoid tripping failure caused by mechanical jamming.
トラブルシューティング
頻繁なトリップ: May be caused by overload, 短絡, or loose wiring; need to check the load and线路 one by one.
接触アブレーション: If blackening or adhesion of contacts is found, the circuit breaker must be replaced in time to avoid fire risks.
Based on the above information, IC65N-3P/C20A has become one of the mainstream choices in the low-voltage power distribution field due to its high reliability, flexible expandability, and wide applicability. In practical applications, a comprehensive evaluation based on load characteristics, 環境条件, and installation space is required to ensure the safe and stable operation of the system.
