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A datasheet tells you what a device can do. An SPD specification sheet tells a supplier what you need — and it decides whether the quotes you receive can be compared at all. Enquire with a part number or two lines of description and you will get prices built on different assumptions: different protection levels, […]

GA&DA is pleased to invite customers, distributors, and industry partners to meet us at the 140th Canton Fair 2026 in Guangzhou, China. At the exhibition, we will present our latest electrical protection and power distribution solutions, with a focus on surge protection devices, PV solar protection products, and related low-voltage electrical solutions. Whether you are […]

Solar DC protection is a chain, not a purchase. In one array you can have a reverse current from nine healthy strings into one faulted string, a lightning-induced impulse arriving on the same conductors, and a maintenance team that needs to work on the inverter DC input — three problems that share a cable and […]

Can an AC circuit breaker be used for DC? Usually no. Unless that specific device carries a declared DC rating — or a dual rating — at your system voltage, an AC-only breaker can fail to open, weld its contacts or destroy itself, because DC has no natural current zero to extinguish the arc. That […]

Solar combiner box troubleshooting begins with one rule that overrides everything else: a blown string fuse or a tripped DC breaker is a symptom, not a fault. Something drew more current than the circuit was designed for, or the protective device was the wrong choice for the job. Replacing the fuse or resetting the breaker […]

When two combiner boxes are quoted side by side and the only visible difference is IP65 vs IP66, it is tempting to assume the higher number is simply the safer purchase. On a solar combiner box that assumption is often wrong, and it can cost you in both directions: paying for protection the site does […]