塑殼漏電保護斷路器CDM3L-125C/4300B 125A 1/3/5延1 U AC230V
產品概述
CDM3L-125C/4300B塑殼漏電保護斷路器是一款采用熱磁式脫扣技術的電氣保護裝置，適用于交流230V低壓配電系統。該產品具有緊湊的塑料外殼結構，提供4極保護（含可開閉中性線），額定電流125A，漏電動作電流可調范圍為100/300/500mA，并具備0.1/0.2/0.3秒三段延時功能。其分斷能力達到35kA，采用板前接線和手動操作設計，標配分勵脫扣器與輔助觸頭組合附件，適用于工業及建筑配電領域的漏電、過載和短路保護需求。11418
核心功能特點
該斷路器通過實時監測相線與中性線電流矢量和實現剩余電流保護，當檢測到異常漏電時能快速切斷電路。熱磁雙元件脫扣機構確保過載保護精度，短路瞬時脫扣特性可有效限制故障電流。產品采用模塊化設計，支持多種附件擴展，包括報警觸頭、分勵脫扣器等。外殼采用高強度工程塑料，具有阻燃耐弧特性，內部滅弧室結構能有效抑制電弧擴散。操作手柄具有明確分合閘指示，并具備機械聯鎖防止誤操作。51224
技術參數詳情
主要參數包括：殼架電流125A，額定工作電壓AC230V，極數4P（3相+中性線），接線方式為板前螺釘固定。漏電保護特性包含100mA/0.1s、300mA/0.2s、500mA/0.3s三檔可調組合，機械壽命10000次，電氣壽命6000次。外形尺寸約142×35.4mm（寬×高），安裝方式為垂直固定于35mm標準導軌。產品采用銅合金觸頭材料，接觸電阻低，溫升性能穩定，適用于-5℃至+40℃環境溫度范圍。91519
典型應用場景
適用于三相四線制配電系統的總保護或分支保護，常見于商業建筑配電柜、工業生產線控制箱、數據中心UPS輸入回路等場合。能有效防范因線路絕緣老化、設備漏電引發的觸電風險，同時對電動機群啟動時的沖擊電流具有耐受能力。特別適合潮濕環境、臨時用電場所及大功率電氣設備的漏電防護，可與上級斷路器實現選擇性保護配合。31621
Product Overview
The CDM3L-125C/4300B molded case leakage protection circuit breaker features a thermomagnetic trip mechanism in compact plastic housing, designed for 230V AC low-voltage distribution systems. This 4-pole device (including switchable neutral) offers adjustable residual current protection at 100/300/500mA with three-stage time delays (0.1/0.2/0.3s). With 125A rated current and 35kA breaking capacity, it adopts front-terminal screw connection and manual operation, pre-equipped with shunt trip + auxiliary contact combination for comprehensive earth fault, overload and short-circuit protection in industrial/commercial applications.111
Key Features
Real-time vector monitoring of phase-neutral current ensures precise residual current detection, while bimetal thermal element and magnetic trip provide dual protection against overloads and short circuits. The modular design allows flexible expansion with accessories like alarm contacts. Arc-resistant housing with optimized arc chute structure enhances safety, and the visible trip indicator with mechanical interlock prevents misuse. Silver-alloy contacts maintain low resistance, and the compact form factor enables space-saving panel installation.512
Technical Specifications
Standard parameters include: 125A frame current, AC230V operational voltage, 4P (3-phase+N) configuration. Adjustable earth leakage protection offers 100mA/0.1s, 300mA/0.2s or 500mA/0.3s combinations. Mechanical endurance exceeds 10,000 operations with 6,000 electrical cycles. Dimensions approximate 142×35.4mm (W×H), mountable on 35mm DIN rail. Copper-alloy contacts ensure stable temperature rise performance within -5℃ to +40℃ ambient range.918
Typical Applications
Ideal for main/branch circuit protection in 3-phase 4-wire systems, including commercial building distribution boards, industrial control panels and data center power inputs. Effectively prevents electric shock hazards from insulation degradation while withstanding motor group starting surges. Particularly suitable for humid environments, temporary power supply sites and high-power equipment protection, capable of selective coordination with upstream breakers.321
塑殼漏電保護斷路器CDM3L-125C/4300B 125A 1/3/5延1 U AC230V
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