PV Molded Case Circuit Breaker
This breaker is built specifically for solar power systems. Think of it as a protector for the key parts of your PV setup – the solar panels themselves, the inverters, the combiner boxes. You'll find it in big solar farms, on residential rooftops, and in energy storage systems.
Description
What it is & where it goes
This breaker is built specifically for solar power systems. Think of it as a protector for the key parts of your PV setup – the solar panels themselves, the inverters, the combiner boxes. You'll find it in big solar farms, on residential rooftops, and in energy storage systems.
The main challenge? Solar systems run on DC power and live outside in all kinds of weather. This breaker is designed to handle DC arc faults (a tricky problem with DC) and keep working reliably whether it's scorching hot or freezing cold. It's a crucial safety component for any PV system.
We designed it to meet international solar standards, keeping in mind the real-world conditions of solar: DC current, wild temperature swings, and the need to switch on and off frequently. The goal is simple: stable performance that helps the whole system run safely and efficiently.
What it's made of and how it's built
The Case
It's made from a special, tough plastic that's UV-resistant, weather-resistant, and flame-retardant. This means it can handle years of sun, rain, and temperature changes without cracking, warping, or losing its protective properties.
The Guts (Conductive Parts)
Inside, we use high-quality alloys that conduct electricity really well and resist damage from DC arcing. They have a special surface treatment to keep electrical resistance low, ensuring power flows through efficiently.
Putting Out Arcs
The part inside that snuffs out electrical arcs is specially tuned for DC power. It works fast to put out arcs and stop them from starting again, which is a key safety feature.
Manufacturing
Every single unit is put through extra tests, like extreme temperature cycles and UV exposure, to make sure it's tough enough for the job.
Why it's a good choice
Smart Protection
It's not a standard breaker. It's fine-tuned to protect against DC overloads, short circuits, and arc faults. The response is fast and accurate, which helps prevent damage to expensive equipment like inverters and panels, and reduces fire risk.
Tough in any weather
It just works, whether it's on a freezing mountain or a scorching desert. It's built for the temperature extremes that real-world solar installations face.
Easy to work with
It has a compact design, so it fits nicely inside combiner boxes and inverters. Plus, it can work with accessories for remote monitoring and alarms, which makes system management and maintenance much easier.
Energy Efficient
It doesn't waste power. Its low power consumption helps squeeze a little more efficiency out of your overall solar generation system.
Why it matters for your project
This breaker meets international solar standards and has the certifications to prove it. Whether you're working on a massive utility-scale solar plant or a small rooftop system, it's designed to be compatible with a wide range of panels and inverters.
The real value is in the peace of mind. It boosts safety and system stability, which means less downtime from electrical faults. Less downtime means more power generated over the long term. By being reliable and reducing the need for repairs, it helps lower maintenance costs and supports a more sustainable, efficient renewable energy project. It's a solid, dependable choice for protecting your solar investment.
Core Parameters
|
Parameter |
Value |
|
Rated Voltage |
DC 1000V / 1500V |
|
Rated Current (In) |
63A, 80A, 100A, 125A, 160A, 250A, 400A, 630A, 800A, 1000A, 1250A |
|
Number of Poles |
2P, 3P, 4P |
|
Rated Ultimate Short-Circuit Breaking Capacity (Icu) |
DC 20kA / 30kA / 50kA |
|
Operating Temperature |
-40°C to +85°C |
|
Protection Function |
DC Overload, DC Short Circuit, DC Arc Fault |
|
Mechanical Life |
20,000 operations |
|
Electrical Life |
6,000 operations |
|
Terminal Type |
Cable / Busbar |
|
Mounting Type |
Fixed |
|
Standards Compliance |
IEC 60947-2 (with Annex L for DC PV applications) |
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