DC Load Breaker Switch Disconnector 160A 250A 630A 1500V
This DC load breaker switch disconnector ensures the safe disconnection and connection of DC circuits under load. It is rated up to 1500VDC with a maximum current of 630A and is suitable for photovoltaic systems.





Technical Specifications
Product Overview
High-Performance DC Load Disconnector
The DNH19 series is a robust DC load breaker switch disconnector engineered for demanding high-voltage applications, including photovoltaic systems and battery storage. Designed for safe disconnection and connection of DC circuits under load, this unit supports systems up to 1500VDC. It features premium construction with flame-retardant V0-grade materials and T2-grade copper contacts for enhanced performance and longevity.


Electrical Ratings
Key Performance Metrics
Technical Specifications
| Parameter | Value |
|---|---|
| Insulation Voltage | 1500V |
| Installation Category | IV |
| Usage Category | DC-21B |
| Dielectric Strength | 3820V |
| Short-Time Tolerance (Icw/1s) | 6kA - 10kA |
Construction & Features
Key Design Features
- Flame retardant V0 grade material housing
- T2 grade copper material for optimal conductivity
- Contact embossing design for increased surface area
- Observation window for visual status verification
- Lockable handle for enhanced safety
- Material Standards
- Flame Retardant V0T2 CopperIntegrated Handle

Installation & Environment
Operational Environment
- Altitude: ≤ 2000m
- Pollution Level: 3
- No significant shaking or shock vibration
- Free from explosive hazards
- Free from corrosive gases or dust



