SPD 10KVA ECO

In this example, "ECO" would probably be a short form for a cost-effective or environmentally friendly SPD. A 10KVA SPD is generally a unit rated at 10 kilovolt-amperes; it can protect against over-voltages in an electrical circuit with this level of power. The model would generally balance cost with the scope of necessary protection features. It provides basic protection from overvoltages, such as voltage spikes and surges, from lightning strikes, power cuts, or electrical malfunctions. These devices are generally constructed with high energy efficiency and low environmental impact; therefore, they can be used for general applications with performance not being a top priority.

SPD 10KVA HEAVY

HEAVY is a suffix indicating that this is one of the heavy-duty or demanding types of surge protection devices.Like the ECO version, it can be constructed to withstand up to 10 kilovolt-amperes of power, but it is usually designed with a greater ability to protect. This may include higher ratings for surge current, better thermal management, and more robust components in order to stay within severe surges and transient voltages. The HEAVY version is best for environments of high electrical stress or when there are critical systems which would require even more reliable surge protection.

SPD 20KVA 

This SPD is designed to protect systems which operate under a maximum power of 20 kilovolt-amperes.It has more surge protection capacity than the 10KVA models.A 20KVA type of SPD is applied in applications whereby electrical systems work under greater loads, or when improved protection levels are required. These appliances typically offer advanced protection features such as higher ratings for surge currents and better mechanisms for dissipating energy from voltage spikes. They can be applied in industrial, commercial, or large residential purposes where elevated surge protection is necessary to protect valuable and sensitive equipment. In summary, the three SPDs do provide protection against surges but with different capacities and levels of protection. The ECO model is most economical and general use, while the HEAVY model would be for more demanding environments and then there is 20KVA for high-capacity protection of large systems.