Core Capabilities
Key Features
Standards Alignment
Built around IEC60947-3 requirements for solar DC applications
DC Ratings
Supports 300V 600V 800V 1500V DC with current options 16A-32A
Protection Design
Configured for IP20 service conditions in solar installation environments
Installation Flexibility
DIN rail; vertical or horizontal installation with configuration options including 2P, 4P, 4T, 4B,...
Product Brief
Overview
TDDH4 belongs to the solar dc isolator switch range for solar energy system applications. It is positioned for isolator, control functions in photovoltaic DC circuits.
- Standards Alignment
- DC Ratings
- Protection Design
Selection
Selection / Use Cases
Use this MCCB when:
PV Distribution
Used where photovoltaic DC-side protection and coordination are required.
Remote Visibility
Fits projects that require monitoring feedback for operation and maintenance.
Project Compliance
Suitable when enclosure and compliance constraints must be reviewed early.
- Confirm DC system voltage requirement against the model reference range: 300V 600V 800V 1500V DC.
- Match string or circuit current demand to the available rating set: 16A-32A.
- Select the wiring or pole arrangement according to project topology: 2P, 4P, 4T, 4B, 4S, 2H.
Technical Data
Technical Specs
| Standard | IEC60947-3 |
|---|---|
| Auxiliary Standard | AS60947.3 |
| Utilization Category | DC-PV2, DC-PV1, DC-21B |
| Protection Grade | IP20 |
| Rated Insulation Voltage Ui (V) | 1500V DC |
| Rated Operating Voltage Ue (V) | 300V 600V 800V 1500V DC |
| Rated Current Options | 16A, 25A, 32A |
| Rated Operating Current Ie (A) | 16A-32A |
| Mounting | DIN rail; vertical or horizontal installation |
| Poles Options | 2P, 4P |
| Configuration Options | 2P, 4P, 4T, 4B, 4S, 2H |
| Storage Temperature | -40C to +85C |
| Application Field | Household or commercial photovoltaic systems from 1-20KW, installed between photovoltaic modules and inverters |