CDM3-630N/4300A 500A塑殼斷路器產品介紹
中文版：
CDM3-630N/4300A 500A塑殼斷路器是一款專為配電系統設計的電力保護裝置，適用于交流50Hz/60Hz、額定工作電壓至690V的電力網絡中。該產品采用緊湊型模塊化設計，額定電流覆蓋500A范圍，可為工業(yè)、商業(yè)及公共設施領域提供可靠的電路保護解決方案。
產品采用高強度工程塑料外殼，內部配置雙斷點觸頭結構，有效提升分斷能力。通過優(yōu)化電磁脫扣機構和熱脫扣裝置的配合精度，確保設備在過載或短路情況下快速響應。分斷能力達到4300A，能有效切斷故障電流，保障用電系統的安全性。產品支持固定式和插入式兩種安裝方式，具備三極和四極規(guī)格可選，適配不同配電場景需求。
在功能設計方面，該斷路器配備清晰可見的分合閘指示窗口和多級觸頭位置標識，便于日常運維人員快速判斷設備狀態(tài)。插拔式接線端子采用防松脫結構設計，確保長期使用中的接觸可靠性。同時，產品預留外部附件擴展接口，可根據實際需要選配報警觸點、分勵脫扣器等輔助功能模塊。
本系列產品適用于電力配電系統的主干線路保護、電動機保護及設備末端保護，主要應用場景包括工業(yè)廠房配電柜、商業(yè)綜合體供電系統、新能源發(fā)電站等。通過精確的電流整定和穩(wěn)定的機械性能，幫助用戶實現配電系統的選擇性保護，降低設備維護成本，提升供電連續(xù)性。
英文版：
CDM3-630N/4300A 500A Molded Case Circuit Breaker Introduction
The CDM3-630N/4300A 500A Molded Case Circuit Breaker is a professional circuit protection device designed for power distribution systems, suitable for AC 50Hz/60Hz networks with rated operational voltage up to 690V. Featuring a compact modular design with 500A rated current capacity, it delivers reliable circuit protection for industrial, commercial and public facility applications.
Constructed with high-strength engineering plastic housing and dual-break contact system, the product demonstrates enhanced breaking capacity. The precisely calibrated electromagnetic trip mechanism and thermal trip unit ensure rapid response to overload or short-circuit conditions. With 4300A breaking capacity, it effectively interrupts fault currents to maintain electrical system safety. Available in both fixed and plug-in versions, the product offers three-pole and four-pole configurations to accommodate diverse installation requirements.
Functional design highlights include visible switching status indicators and multi-stage contact position markings for operational clarity. The clamp-type terminals incorporate anti-loosening structure to ensure long-term connection reliability. Expandable accessory interfaces allow flexible integration of auxiliary modules such as alarm contacts and shunt trip units according to specific application needs.
This series is ideal for main circuit protection in power distribution systems, motor protection and terminal equipment protection. Typical applications include industrial plant switchboards, commercial complex power supply systems and renewable energy power stations. Through accurate current setting and stable mechanical performance, it helps achieve selective protection coordination in electrical networks, effectively reducing maintenance costs while improving power supply continuity.
（中英文總字數：約600字）
