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DC Circuit Breaker 4P 1000V | KYDB-63-4P
Kuangya KYDB-63-4P is a dc circuit breaker 4p 1000v, rated 10–63A.
Provides overload & short-circuit protection, breaking capacity 6kA/10kA.
Four-pole 1000VDC breaker, IEC 60947-2 certified, DIN-rail installation.
Overview
The dc circuit breaker 4p 1000v (model KYDB-63-4P) is a four-pole miniature DC breaker designed for high-voltage PV combiner boxes, battery energy storage (ESS), and industrial DC distribution. Rated for 1000VDC and supporting 6A to 63A, it provides overload and short-circuit protection with a 6kA breaking capacity. Ui 690V and Uimp 6kV ensure insulation safety, while its 72mm width (18mm × 4 poles) allows compact DIN-rail installation.
Key Features
- Rated voltage: 1000VDC (4P); frame current: 63A
- Rated current options: 6A / 10A / 16A / 20A / 25A / 32A / 63A
- Breaking capacity: 6kA (Icn/Ics)
- Trip characteristics: C / D, thermal-magnetic
- Insulation & impulse: Ui 690V; Uimp 6kV
- Endurance: Mechanical life 20,000 ops; Electrical life 2,000 ops
- Compliance: IEC 60947-2, GB/T 14048.2; CE & UL
- Integrates with PV combiner boxes, DC fuses, DC SPDs, and DC switch disconnectors
Specifications
| Model | KYDB-63-4P |
|---|---|
| Poles | 4P |
| Rated Current (In) | 6–63A |
| Rated Voltage (Ue) | 1000VDC |
| Rated Insulation Voltage (Ui) | 690V |
| Impulse Withstand Voltage (Uimp) | 6kV |
| Breaking Capacity (Icn/Ics) | 6kA / 6kA |
| Trip Characteristics | C / D (thermal-magnetic) |
| Mechanical Life | 20,000 operations |
| Electrical Life | 2,000 operations |
| Installation | DIN-rail, width 72mm (18mm × 4 poles) |
| Standards | IEC 60947-2, GB/T 14048.2 |
Wiring Diagram & Dimensions
Applications
- High-voltage PV combiner boxes
- Energy storage system (ESS) DC distribution
- Industrial DC control panels
- Telecom and infrastructure DC power systems
FAQ
Q1: What is a dc circuit breaker 4p 1000v?
A1: It is a four-pole miniature DC breaker rated at 1000VDC, designed for overload and short-circuit protection in PV, ESS, and industrial applications.
Q2: What current ratings are available for KYDB-63-4P?
A2: Available ratings include 6A, 10A, 16A, 20A, 25A, 32A, and 63A.
Q3: What is the breaking capacity?
A3: The breaker provides a standard breaking capacity of 6kA (Icn/Ics).
Q4: Can it be used in PV and ESS systems?
A4: Yes, this dc circuit breaker 4p 1000v is widely used in PV combiner boxes and ESS distribution panels.
Q5: Which standards does KYDB-63-4P comply with?
A5: It complies with IEC 60947-2, GB/T 14048.2, CE, and UL certifications.
Get a Quote
Contact Kuangya for datasheets, wiring diagrams, or OEM customization of KYDB-63-4P.
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