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DC Circuit Breaker 2P 500V | KYDB-63-2P
Kuangya KYDB-63-2P dc circuit breaker 2p 500v, rated 10–63A.
Provides reliable overload & short-circuit protection, breaking capacity 6kA/10kA.
IEC 60947-2 compliant, double pole 500VDC design for PV and ESS.
Overview
The dc circuit breaker 2p 500v (model KYDB-63-2P) is a double-pole miniature DC breaker for solar PV combiner boxes, battery energy storage, and industrial DC distribution. With current ratings from 6A to 63A, it delivers reliable overload and short-circuit protection at 500VDC. Ui of 690V and Uimp of 6kV ensure excellent insulation performance in demanding DC environments.
Key Features
- Rated voltage: 500VDC (2P); frame current 63A
- Rated current options: 6A / 10A / 16A / 20A / 25A / 32A / 63A
- Breaking capacity: 6kA (Icn); Operating short-circuit capacity: 6kA (Ics)
- Trip characteristics: C / D, thermal-magnetic protection
- Rated insulation voltage (Ui): 690V; Impulse withstand voltage (Uimp): 6kV
- Mechanical life: 20,000 operations; Electrical life: 2,000 operations
- Complies with IEC 60947-2, GB/T 14048.2, CE and UL
- Integrates with PV combiner boxes, DC fuses, DC SPDs, and DC switch disconnectors
Specifications
| Model | KYDB-63-2P |
|---|---|
| Poles | 2P |
| Rated Current (In) | 6–63A |
| Rated Voltage (Ue) | 500VDC |
| Rated Insulation Voltage (Ui) | 690V |
| Impulse Withstand Voltage (Uimp) | 6kV |
| Breaking Capacity (Icn/Ics) | 6kA / 6kA |
| Trip Characteristics | C / D |
| Mechanical Life | 20,000 operations |
| Electrical Life | 2,000 operations |
| Installation | DIN-rail, width 36mm (18mm × 2 poles) |
| Standards | IEC 60947-2, GB/T 14048.2 |
Wiring Diagram & Dimensions
Applications
- Solar PV combiner boxes
- Energy storage system (ESS) DC buses
- Industrial DC distribution panels
- Telecommunication and data center DC systems
FAQ
Q1: What is a dc circuit breaker 2p 500v?
A1: It is a double-pole miniature DC breaker rated at 500VDC, designed for overload and short-circuit protection in PV and ESS applications.
Q2: What current ratings are available?
A2: KYDB-63-2P supports 6A, 10A, 16A, 20A, 25A, 32A, and 63A.
Q3: What is the breaking capacity?
A3: Standard breaking capacity is 6kA (Icn/Ics).
Q4: Is it suitable for PV combiner boxes?
A4: Yes, this dc circuit breaker 2p 500v is commonly used in PV combiner boxes and ESS systems.
Q5: What standards does KYDB-63-2P 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-63-2P.
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