Product Overview
The QYB6Z-63 DC mini circuit breaker features rated voltages of 300V (1P), 600V (2P), 900V (3P), and 1200V (4P). It utilizes specialized arc-extinguishing and current-limiting systems to rapidly interrupt fault currents in DC power distribution systems, thereby protecting critical components and ensuring the reliable operation of solar photovoltaic power generation systems.
Its rated voltage varies by pole configuration:
- 1P: DC 300V
- 2P: DC 600V
- 3P: DC 900V
- 4P: DC 1200V
The product complies with the following international and national standards:
- IEC 60947-1, IEC 60947-2
- GB/T 14048.1, GB/T 14048.2
Model Selection Guide
| Code Segment | Definition | Options & Specifications |
|---|---|---|
| QYB6Z | Product Code | DC molded case circuit breaker |
| 63 | Frame Grade Rated Current (Inm) | 63A (fixed for this series) |
| 2P | Pole Number | 1P, 2P, 3P, 4P |
| 63A | Rated Current (In) | 1A, 2A, 3A, 5A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A |
| OF | Accessories | OF: Auxiliary switchSD: Alarm switchOF+SD: Auxiliary + AlarmMX: Shunt trip |
Technical Specifications Table
| Item | Unit | QYB6Z-63 |
|---|---|---|
| Frame Grade Rated Current (Inm) | A | 63 |
| Rated Current (In) | A | 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A |
| Pole Number | – | 1P, 2P, 3P, 4P |
| Rated Working Voltage (Ue) DC | V | 1P: 300V; 2P: 600V; 3P: 900V; 4P: 1200V |
| Rated Impulse Withstand Voltage (Uimp) | kV | 4 |
| Rated Short-Circuit Making Capacity (Icn) | kA | 6 |
| Rated Operational Short-Circuit Breaking Capacity (Ics) | kA | 6 |
| Service Life (Cycles) | ||
| Mechanical Life | Cycles | 20000 |
| Electrical Life | Cycles | 1500 |
| Mounting Form | – | 35mm standard DIN rail |
| Overall Dimensions (mm) | (W × L × H) | |
| 1P | 18 × 52 × 106 | |
| 2P | 36 × 52 × 106 | |
| 3P | 54 × 52 × 106 | |
| 4P | 72 × 52 × 106 |
Wiring Diagram
1P Outline Wiring Diagram
2P Outline Wiring Diagram
3P Outline Wiring Diagram
4P Outline Wiring Diagram
Note: Users can select the positive and negative polarity of the wiring terminals according to actual needs, which is not restricted by the product structure.
Ordering Instructions
Orders must be placed in accordance with the model selection guide, with complete configuration information.
Order Format
Product Name + Model & Specification + Quantity
Specification Description Elements
- Breaker name (DC molded case circuit breaker)
- Model (e.g., QYB6Z-63)
- Pole number (e.g., 2P)
- Rated current (e.g., 63A)
- Quantity (e.g., 100 units)
Order Example
DC molded case circuit breaker; QYB6Z-63/2P/63A; Quantity: 100 units.