Outdoor power supply temperature is high

The operating temperature specified for a power supply refers to the temperature of the environment around it, rather than the external ambient temperature of the equipment. Typically, the operating temperature range for power supplies is between 0°C and 40°C, with some products able to reach standards of 0°C to 50°C.

Chemical processes accelerate, and mechanical connections can even loosen. The longer a component is operated at high heat, the more elevated temperatures can reduce its lifespan. Reduce the power supply load: Power supplies typically have specified loads according to an ambient temperature range.

Wide temperature power supplies usually operate within a range of -40 to -20°C up to 70–80°C, exceeding the range of conventional power supplies and meeting the needs of most applications. Although wide temperature power supplies utilize internal components with superior heat resistance, these materials still have thermal and efficiency limits.

Although wide temperature power supplies utilize internal components with superior heat resistance, these materials still have thermal and efficiency limits. When the ambient temperature exceeds 40–50°C (depending on the product design), internal components may overheat, leading to performance degradation and reduced output power.

Power supplies need to be housed outdoors, where the extreme heat of the summer and the extreme cold of the winter will both be present. Power supplies heat themselves up at different rates and intensities, and environmental influences will impact how quickly a power supply is exposed to high temperatures.

The longer a component is operated at high heat, the more elevated temperatures can reduce its lifespan. Reduce the power supply load: Power supplies typically have specified loads according to an ambient temperature range. Move outside that range, and the load can derate to a much smaller number.