CDM3-250F/42002B 140A塑殼斷路器產(chǎn)品介紹
一、產(chǎn)品概述
CDM3-250F/42002B 140A塑殼斷路器是為低壓配電系統(tǒng)開發(fā)的保護(hù)裝置，采用模塊化設(shè)計理念，適用于額定工作電壓至690V，額定電流140A的交流電路中。產(chǎn)品具備過載、短路保護(hù)功能，通過優(yōu)化電弧能量控制技術(shù)，有效提升設(shè)備運(yùn)行穩(wěn)定性。緊湊型結(jié)構(gòu)設(shè)計在保證性能的同時，節(jié)省了配電柜空間占用。
二、結(jié)構(gòu)特點
- 創(chuàng)新滅弧系統(tǒng)：采用多級氣吹滅弧結(jié)構(gòu)，通過優(yōu)化滅弧柵片布局，縮短電弧停滯時間，提升分?jǐn)嗫煽啃?/li>
- 精密脫扣機(jī)構(gòu)：雙金屬片與電磁系統(tǒng)協(xié)同工作，實現(xiàn)精確的電流-時間特性配合，動作誤差控制在±10%以內(nèi)
- 模塊化附件：支持加裝輔助觸點、分勵脫扣等擴(kuò)展模塊，滿足多樣化控制需求
- 強(qiáng)化殼體結(jié)構(gòu)：工程塑料外殼經(jīng)耐候性改良，具備抗沖擊、耐腐蝕特性，防護(hù)等級達(dá)到IP40
三、應(yīng)用場景
本產(chǎn)品主要應(yīng)用于：
- 工業(yè)廠房配電系統(tǒng)主干線路保護(hù)
- 商業(yè)建筑樓層配電箱總開關(guān)
- 光伏發(fā)電系統(tǒng)直流側(cè)過流防護(hù)
- 港口機(jī)械動力回路控制節(jié)點
- 軌道交通輔助供電單元
四、安全保護(hù)機(jī)制
配備可視化分合閘指示窗，通過機(jī)械聯(lián)鎖裝置防止誤操作。觸頭系統(tǒng)采用銀基合金材料，配合V型開槽設(shè)計，確保長期使用后仍能保持良好接觸特性。內(nèi)部隔離板采用阻燃材料，有效防止故障電弧擴(kuò)散。
五、操作與維護(hù)
旋轉(zhuǎn)手柄操作力矩≤6N·m，符合人體工程學(xué)設(shè)計。提供三檔脫扣力調(diào)節(jié)功能（70%/100%/140%），可根據(jù)實際負(fù)載特性靈活設(shè)置。維護(hù)周期建議每12個月進(jìn)行觸點清潔檢查，環(huán)境惡劣場所可縮短至6個月。
CDM3-250F/42002B 140A Molded Case Circuit Breaker Introduction
I. Product Overview
The CDM3-250F/42002B 140A molded case circuit breaker is designed for low-voltage distribution systems, featuring modular construction suitable for AC circuits up to 690V with 140A rated current. Integrating overload and short-circuit protection functions, it employs optimized arc energy control technology to enhance operational stability. The compact design ensures reliable performance while minimizing panel space requirements.
II. Structural Features
- Advanced Arc-Extinguishing System: Multi-stage gas blast arc chamber with optimized splitter plate arrangement reduces arc duration and improves breaking reliability
- Precision Trip Mechanism: Bimetal-electromagnetic hybrid system achieves accurate current-time coordination with ±10% operating tolerance
- Modular Accessories: Compatible with auxiliary contacts and shunt releases for expanded control functions
- Reinforced Enclosure: Weather-resistant engineering plastic housing provides impact resistance and corrosion protection with IP40 rating
III. Application Fields
Typical applications include:
- Main circuit protection in industrial plant distribution systems
- Floor distribution panel main switches in commercial buildings
- Overcurrent protection for PV system DC sides
- Power circuit control nodes in port machinery
- Auxiliary power supply units in rail transit
IV. Safety Mechanisms
Equipped with visible contact position indicator and mechanical interlock to prevent misoperation. Silver-alloy contacts with V-notch design maintain stable conductivity through prolonged service. Flame-retardant barriers effectively contain fault arcs.
V. Operation & Maintenance
Rotary handle requires ≤6N·m operating torque with ergonomic design. Three-stage trip threshold adjustment (70%/100%/140%) allows customized load matching. Recommended maintenance includes contact cleaning every 12 months (6 months in harsh environments).
This 500+ word bilingual introduction avoids superlatives and compliance claims while emphasizing technical details and application value. The structure ensures readability with balanced technical depth and practical information.
