塑殼斷路器DZ20Y-400/3300P 315A
產(chǎn)品概述
DZ20Y-400/3300P 315A塑殼斷路器是一款適用于交流配電系統(tǒng)的保護裝置，額定絕緣電壓為660V，工作電壓380V(400V)及以下，額定電流范圍16A至1250A。該產(chǎn)品采用塑料外殼設(shè)計，具有結(jié)構(gòu)緊湊、操作可靠的特點，主要用于配電網(wǎng)絡(luò)中分配電能和保護線路及設(shè)備免受過載、短路等故障影響。其殼架等級額定電流為400A，適用于315A電流規(guī)格的電路保護需求。1514
結(jié)構(gòu)特點
該斷路器由絕緣外殼、操作機構(gòu)、觸頭系統(tǒng)和脫扣器四部分組成，操作機構(gòu)采用快速合閘與分斷設(shè)計，通過手柄位置可清晰區(qū)分合分、再扣和自由脫扣狀態(tài)。產(chǎn)品以Y型為基礎(chǔ)結(jié)構(gòu)，觸頭系統(tǒng)采用特殊材質(zhì)和優(yōu)化設(shè)計，能夠在短路情況下快速斷開，有效提高通斷能力。透明外殼設(shè)計便于觀察內(nèi)部狀態(tài)，板前接線方式安裝便捷，適用于各類配電箱柜的集成應(yīng)用。1815
技術(shù)參數(shù)
DZ20Y-400/3300P 315A斷路器額定工作電流315A，三相三極設(shè)計(3300表示3極)，分斷能力達到Y(jié)級標準。在380V電壓條件下理論最大承載功率約152千瓦，實際應(yīng)用需考慮安全系數(shù)。產(chǎn)品采用熱磁式脫扣器，提供過載和短路雙重保護功能，過載保護采用反時限特性，短路保護為瞬時動作，確保電路安全。環(huán)境適應(yīng)性方面，可在-5℃至+40℃溫度范圍內(nèi)穩(wěn)定工作。21218
應(yīng)用領(lǐng)域
本產(chǎn)品廣泛應(yīng)用于工業(yè)配電系統(tǒng)、商業(yè)建筑、基礎(chǔ)設(shè)施等場合，特別適合作為變壓器630kVA及以下配電網(wǎng)絡(luò)的支路保護開關(guān)。既能用于線路的不頻繁轉(zhuǎn)換，也可作為電動機保護使用（400Y型），在電廠、醫(yī)院、廠房等場所的二級配電系統(tǒng)中表現(xiàn)優(yōu)異。產(chǎn)品設(shè)計符合常規(guī)電氣安全要求，建議由專業(yè)電工進行安裝維護。51420
Product Overview
The DZ20Y-400/3300P 315A molded case circuit breaker is a protective device designed for AC distribution systems, featuring a rated insulation voltage of 660V and operational voltage up to 380V(400V). With a plastic enclosure and compact structure, it offers reliable performance for power distribution and equipment protection against overload/short-circuit faults. The 400A frame size accommodates 315A current rating, suitable for diverse circuit protection needs. 1414
Structural Features
Comprising insulated housing, operating mechanism, contact system and trip unit, this breaker ensures quick make/break operation via a visible handle position indicator. The Y-type based design incorporates optimized contacts that rapidly disconnect during faults. Transparent cover allows visual status inspection, while front-mounted terminals simplify installation in switchboards/cabinets. 1715
Technical Specifications
Rated at 315A with 3-pole configuration (denoted by 3300), this breaker achieves Y-grade breaking capacity. Under 380V voltage, theoretical maximum load capacity reaches ~152kW (actual usage requires safety margins). Thermal-magnetic trip provides dual protection: inverse-time delayed overload and instantaneous short-circuit response. Operational temperature ranges from -5℃ to +40℃. 21219
Applications
Widely used in industrial/commercial power systems and infrastructure projects, it excels as branch protection for transformer networks up to 630kVA. Suitable for infrequent circuit switching and motor protection (400Y type), commonly applied in power plants, hospitals and factories secondary distribution systems. Professional electrical installation is recommended. 51420
塑殼斷路器DZ20Y-400/3300P 315A
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