シュナイダー MT08N1 3P 800A

Schneider MT08N1 3P 800A is a fixed 3-pole intelligent エアサーキットブレーカー (ACB) belonging to the Masterpact MT series. It has a frame current and rated current of 800A, with an N1-class breaking capacity (50kA@400V). Suitable for incoming line/bus tie protection and power distribution in power distribution systems, it is commonly used in primary/secondary power distribution of industrial plants, large buildings and data centers. Below are the complete specifications and core details:

コア技術パラメータ

コア機能 & Protection Features

1. Full Intelligent Protection: Realizes long-time delay (過負荷), 短時間の遅延 (短絡), 瞬間的な (heavy short circuit) and earth fault protection via the Micrologic control unit. Parameters can be precisely set to adapt to cascade coordination in multi-level power distribution systems.
2. 測定 & Monitoring: Displays real-time electrical parameters such as current, voltage and power, with fault memory and alarm output functions. Supports Modbus and other communication protocols, and can be integrated into SCADA systems.
3. ゼロアーク設計: Optimized arc extinguishing chamber with zero arcing distance, improving cabinet safety and space utilization.
4. アイソレーション機能: IEC準拠 60947-2, can be used as an isolating switch (without controller).

アプリケーションシナリオ & 選定のポイント

– 典型的なシナリオ: Primary/secondary power distribution links such as incoming line cabinets of industrial plants, power distribution of large buildings, UPS output of data centers, photovoltaic/energy storage combiner boxes, 等. It is used for power distribution and short-circuit, 過負荷, earth fault protection of lines/equipment.

– キー選択のヒント:

– コントロールユニット: 2.0 for basic protection; 5.0/6.0 with added measurement and communication functions, select according to requirements.

– 取付タイプ: Fixed type is cost-effective; drawout type facilitates maintenance and allows breaker replacement without power outage.

– 遮断容量: N1 (50の) meets general power distribution needs; upgrade to N2/H1/H2 class if short-circuit current is high.

Procurement & 交換の推奨事項

1. Complete Order Specification: Must specify MT08N1 + control unit model + mounting method + 極番号, 例えば, MT08N1 F MIC 2.0 3P.
2. 交換互換性: Can directly replace MT08N2/H1 and other models with the same frame size. Dimensions differ from the NW series; verify cabinet installation space before replacement.
3. 参考価格 (December 2025): Domestic fixed type with MIC 2.0 control unit is approximately RMB 14,500-16,000 per unit; drawout type is priced higher.

Breaking Capacity Comparison Table of Schneider Masterpact MT08 Series (800あ)

Complete Order Code Examples & Stocking Recommendations

1. Complete Order Code Specification (4 Core Elements Required)

Ordering Schneider MT series requires specifying frame size + breaking capacity class + mounting method + control unit + 極番号. Examples are as follows:

– MT08N1 F MIC 2.0 3P: 800A N1 class, 固定式, マイクロロジック 2.0 control unit, 3-ポール

– MT08H1 D MIC 5.0 4P: 800A H1 class, 引き出しタイプ, マイクロロジック 5.0 control unit, 4-ポール

2. Stocking & 選択の推奨事項
3. Select by Short-circuit Current

– First calculate the expected short-circuit current at the distribution point: choose N1 class (highest cost-performance) if ≤50kA; N2 class if 50-70kA; H1/H2 class if >70の.

– For industrial plants close to substations with high short-circuit current, prioritize H1 class.

2. Select by Operation & Maintenance Requirements

– Choose fixed type for general power distribution scenarios, featuring low cost and small space occupation;

– Choose drawout type for scenarios where power outage for maintenance is not allowed (例えば, データセンター, 病院), enabling live replacement of the breaker body.

3. Select by Functional Requirements

4. Stocking Recommendations

– For regular trade stocking, prioritize MT08N1 F MIC 2.0 3P, which adapts to 80% of general power distribution scenarios and ensures fast inventory turnover;

– For heavy industry customers, stock a small quantity of MT08H1 F MIC 5.0 3P to meet high short-circuit current requirements;

– Customize drawout models on demand; large-scale stocking is not recommended (high capital occupation and strong model specificity).

Core Parameter Comparison Table: Schneider MT08 Series vs. Chint NA8G-800 Series

(Both are 800A frame, 3-ポール, 固定式, basic protection type, suitable for general power distribution scenarios)

Selection Decision Recommendations

1. Scenarios for Prioritizing Schneider MT08 Series

– Export projects (例えば, overseas markets such as Algeria), power distribution projects requiring international certifications;

– Scenarios with high requirements for short-circuit breaking capacity and reliability, such as data centers and heavy industrial plants;

– Intelligent power distribution systems requiring energy consumption monitoring and remote control.

2. Scenarios for Prioritizing Chint NA8G-800 Series

– Domestic civil buildings, small and medium-sized factories and other general power distribution scenarios with limited budgets;

– Localized renovation projects requiring fast delivery and after-sales response;

– Power distribution circuits with only basic short-circuit and overload protection needs, no intelligence requirements.

3. Replacement Compatibility Notes

– The two series have slightly different mounting dimensions; verify cabinet installation space before replacement;

– Chint NA8G series can upgrade measurement and control functions by installing intelligent trip units (例えば, NA8G-M), with the cost still lower than that of similarly configured Schneider models.