A RCBO (Residual Current Circuit Breaker with Overcurrent protection) combines earth leakage and overcurrent protection in one device. Type B RCBOs detect AC, pulsating DC, and smooth DC faults — critical for PV and EV applications.
A breaker with overcurrent protection (RCBO) combines earth leakage and overload protection. Type B detects AC, DC, and high-frequency currents — for EV chargers, solar, heat pumps, and VFDs. Up to 63A, 10kA, 30mA.
A DC molded case circuit breaker with IP65 enclosure — dust-tight, waterproof, UV-resistant. Handles 1000V DC, 250A, thermal-magnetic trip, 12kV impulse withstand. Reliable outdoor protection for solar and battery systems.
A residual current circuit breaker protects against leakage — electric shock and fire. EKL6-100 offers 16–100A, 30–300mA sensitivity, magnetic tripping, IEC61008-1. Which one fits your panel?
The simplest DC mini circuit breaker for solar uses non-polarity construction, eliminating orientation errors. Rated up to 125A and 1200V DC with 6kA breaking capacity. Thermal-magnetic protection handles overloads and shorts. Install it either way—it just works.
A DC Molded Case Circuit Breaker repeatedly tripping signals overload, short circuit, or high ambient temperature. On EKM6DC‑800 models, check for terminal rise >75°C or carbonized arc chamber—both indicate replacement needed.
When designing a photovoltaic (PV) system, most of the attention goes to solar panels, inverters, and mounting structures. But what about the small component that stands between a smoothly running array and a dangerous electrical fire?
The solar energy landscape is evolving faster than ever. As photovoltaic installations scale from residential rooftops to utility‑grade power plants, the components that protect these systems must keep pace.
Old fuse boxes – those porcelain bases with rewirable fuse wires – are still protecting many solar PV systems installed a decade ago. But are they really safe for today’s higher DC currents and continuous solar generation?
A surge protection devices system with Type 1+2 rating handles direct lightning currents (10/350 µs) and switching surges (8/20 µs) in one unit. Pluggable design, 1500V DC, 40kA Imax. For combiner boxes, inverters, and PV arrays.
The DC string combiner keeps tripping — not during a fault, but on a perfectly sunny afternoon. Meanwhile, the main DC breaker on your utility-scale battery bank hasn’t moved in months, but you’ve heard whispers about what happens when a high-current protector fails to interrupt a serious arc.
A circuit breakers selection that ignores DC voltage de‑rating leads to nuisance trips. EKM1‑125DC handles 125A at 1000VDC, 6kA breaking, thermal‑magnetic trip, IEC60947‑2. For commercial solar, EV chargers, battery banks. IP20, DIN rail.
Looking ahead, ETEK Electric remains committed to becoming a globally renowned manufacturer in
the new energy and electrical protection industry. We continue to focus on:
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