STM7DC-630 New Energy DC Circuit Breaker
STM7DC new-energy DC circuit breaker for DC750V to DC1500V solar, battery-storage and DC distribution systems, covering 100A to 1600A with 2P, 3P and 4P options.
Order Support
- Typical production lead time: 20 working days
- Free samples — send us your express shipping account
- Technical documents checked for the requested model
- Pre-shipment inspection options can be agreed before ordering
- OEM and private-label requirements are reviewed case by case
STM7DC new-energy DC circuit breaker for DC750V to DC1500V solar, battery-storage and DC distribution systems, covering 100A to 1600A with 2P, 3P and 4P options.
Overview
The STM7 series targets new-energy applications: high-voltage AC models for PV distribution and dedicated DC models for solar strings and battery systems.
Key Features
- DC-rated models for solar and storage
- High-voltage AC versions for PV distribution
- High DC breaking capacity, arc-extinguishing design
- IEC 60947-2 and GB 14048.2 documents for the selected model can be reviewed before order
New Energy DC Circuit Breaker STM7DC-630
| Parameter | 630 |
|---|---|
| Frame size In (A) | 400A~630A |
| Number of poles | 2P |
| Rated operational voltage Ue | DC750V,DC1000V,DC1200V,DC1500V |
| Rated insulation voltage Ui | 1600V |
| Rated impulse withstand voltage Uimp | 12kV |
| Icu DC750V | 85kA |
| Icu DC1000V | 50kA |
| Icu DC1200V | 35kA |
| Icu DC1500V | 20kA |
| Arc distance (mm) | 50/0 (with arc chute) |
| Overall dimensions W x L x H (mm) | 110*275*181.5 |
Typical Applications
- Solar PV systems
- Battery energy storage
- DC distribution
Frequently Asked Questions
Which DC voltages and breaking capacities are listed?
The data lists 85kA at DC750V, 50kA at DC1000V, 35kA at DC1200V and 20kA at DC1500V, with Ics equal to Icu.
Can STM7DC be used where current direction can reverse?
The listed configuration is non-polarized and is specified without reverse-feed derating, with 2P, 3P and 4P options for solar and battery systems.
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