DZ15-40/3902 25A 塑壳断路器 产品介绍
（中英双语）
一、产品概述
DZ15-40/3902 25A塑壳断路器是一款专为低压配电系统设计的电路保护装置，适用于交流50Hz、额定电压至400V的电路中。该产品采用模块化结构设计，具备可靠的过载与短路保护功能，可有效防止电气线路因电流异常引发的设备损坏或安全隐患。25A额定电流规格适用于中小型负载场景，兼顾安全性与经济性。
二、核心特点
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精准保护
通过优化热磁脱扣机构，实现过载延时保护与短路瞬时保护的协调配合，确保在电流异常时快速切断故障电路，减少设备损伤风险。
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耐用结构
外壳采用高强度工程塑料，具备良好的阻燃性与抗冲击性能，内部触头系统选用银合金材料，导电稳定且耐电弧烧蚀，延长产品使用寿命。
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便捷操作
手柄分合闸清晰明确，支持手动操作与故障指示功能，复位简单，维护方便。
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灵活安装
支持标准导轨安装，兼容多种配电箱布局需求，节省空间并提升部署效率。
三、应用领域
广泛适用于工业控制柜、商业建筑配电系统、公共设施照明回路等场景，为电动机、配电线路及用电设备提供可靠的电路保护。
四、技术参数
- 额定电流：25A
- 额定工作电压：AC 400V
- 极数：3P
- 分断能力：6kA
- 机械寿命：≥10,000次
- 使用环境温度：-5℃～+40℃
五、安全与环保
产品设计遵循电气安全规范，在异常电流下迅速动作，降低火灾风险。材料选用符合环保要求，无有害物质释放。
DZ15-40/3902 25A Molded Case Circuit Breaker Product Introduction
1. Product Overview
The DZ15-40/3902 25A molded case circuit breaker is designed for low-voltage power distribution systems, suitable for circuits with AC 50Hz and rated voltage up to 400V. Featuring a modular structure, it provides reliable overload and short-circuit protection, effectively preventing equipment damage or safety hazards caused by abnormal currents. The 25A rated current model is ideal for medium to small load scenarios, balancing safety and cost efficiency.
2. Key Features
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Precision Protection
An optimized thermal-magnetic trip mechanism coordinates delayed overload protection with instantaneous short-circuit protection, ensuring rapid interruption of faulty circuits to minimize equipment damage.
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Durable Construction
The high-strength engineering plastic housing offers flame resistance and impact resistance. Silver alloy contacts ensure stable conductivity and resistance to arc erosion, enhancing product lifespan.
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User-Friendly Operation
A clear handle indicates ON/OFF status and fault conditions, enabling easy reset and maintenance.
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Flexible Installation
Compatible with standard rail mounting, it adapts to diverse distribution cabinet layouts, saving space and improving deployment efficiency.
3. Applications
Widely used in industrial control cabinets, commercial building power systems, and public facility lighting circuits, providing reliable protection for motors, distribution lines, and electrical equipment.
4. Technical Parameters
- Rated Current: 25A
- Rated Voltage: AC 400V
- Poles: 3P
- Breaking Capacity: 6kA
- Mechanical Life: ≥10,000 cycles
- Operating Temperature: -5℃～+40℃
5. Safety & Environmental Compliance
The design adheres to electrical safety principles, activating swiftly under abnormal currents to mitigate fire risks. Materials comply with eco-friendly requirements, free from hazardous substances.
（中英文总计约450字）
