Smart Solar DC Isolator Switch Solution – Cost-Saving with Style

When building a solar PV system, most customers carefully plan their components from the very beginning: panels, inverters, cables, breakers, protections—the list goes on. But sometimes, real-life projects bring unexpected decisions.

One of our customers had already completed the installation of his entire PV system when he suddenly realized that dedicated solar DC isolator switches would be a valuable addition to improve safety and flexibility. After careful calculation, he concluded that he needed 15 units of 8-pole DC isolator switches, each protected with an IP66 waterproof enclosure.

Sounds straightforward, right?
Well, not quite.

Here's the catch: 

The cost of a single one-to-one waterproof enclosure turned out to be more expensive than the isolator switch itself. That's a bit like buying a car and finding out the protective cover costs more than the engine! Understandably, the customer wasn't thrilled about doubling his investment just to house the switches.

That's where our team stepped in with a smarter solution.

Instead of insisting on 15 individual enclosures, we designed an upgraded enclosure solution:

• Each upgraded waterproof box could accommodate 4 isolator switches at once.
• With just the price of 2 standard enclosure, the customer received a larger, robust IP66-rated solution.
• Instead of buying 15 expensive boxes, he only needed a handful of these upgraded designs.