直流遮断器 3P 750V 125A｜KYDB-125-3P

概要

について 直流サーキットブレーカー 3P 750V 125A (model KYDB-125-3P) is a three-pole miniature DC breaker designed for large-scale PV arrays, ESS DC buses, and industrial DC distribution panels. Rated at 750VDC with current options of 63A / 80A / 100A / 125A, it delivers overload and short-circuit protection with a 6kA breaking capacity. With Ui 690V and Uimp 6kV, it provides robust insulation and long service life.

主な特徴

• Rated voltage: 750VDC (3P); frame current: 125A
• Current options: 63A / 80A / 100A / 125A
• Breaking capacity: 6kA (Icn/Ics)
• Trip characteristics: C / D, thermal-magnetic
• Insulation & impulse: Ui 690V; Uimp 6kV
• 持久力： Mechanical life 20,000 ops; Electrical life 2,000 ops
• Compliance: IEC 60947-2, GB/T 14048.2; CE & UL
• Works with PVコンバイナーボックス, 直流ヒューズ, DC SPDそして DCスイッチ・ディスコネクター

仕様

Wiring Diagram & Dimensions

アプリケーション

• Large-scale solar PV arrays
• Energy storage system (ESS) DC buses
• Industrial DC distribution panels
• Telecom and infrastructure DC systems

よくあるご質問

Q1: What is a dc circuit breaker 3p 750v 125a?

A1: It is a three-pole miniature DC breaker rated at 750VDC and up to 125A, designed for overload and short-circuit protection.

Q2: What current ratings are available?

A2: KYDB-125-3P supports 63A, 80A, 100A, and 125A.

Q3: What is the breaking capacity?

A3: The breaker provides 6kA breaking capacity (Icn/Ics).

Q4: Can it be used in PV and ESS systems?

A4: Yes, this 直流サーキットブレーカー 3P 750V 125A is commonly applied in PVコンバイナーボックス and ESS DC systems.

Q5: Which standards does KYDB-125-3P comply with?

A5：IEC 60947-2、GB/T 14048.2、CE、UL認証に準拠しています。

お見積もり

Contact Kuangya for datasheets, wiring diagrams, or OEM customization of KYDB-125-3P.

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