When the high-power heating element exists: the explosion-proof positive pressure cabinet has good sealing and can effectively isolate the first risk. Although it is less effective at dissipating heat, the positive pressure cabinet can take away some of the heat by adding explosion-proof air conditioning and using air flow. This makes the positive pressure cabinet a better choice for inverters above 30kW.
When larger capacity explosion-proof cabinets are required and the cost is higher and bulky: Positive pressure cabinets are smaller in size and lower in cost than explosion-proof cabinets. It provides relatively good flameproofing, so in this case, the positive pressure cabinet is more suitable and economical.
When the touch screen needs to be operated: the positive pressure cabinet can be directly installed with the touch screen to ensure the safety of operation and meet the explosion-proof requirements.
Explosion-proof positive pressure cabinets are a more suitable choice when there are high-power heating elements, explosion-proof cabinets with large capacity and high cost, or when the touch screen needs to be operated. The explosion-proof positive pressure cabinet not only has good sealing and explosion-proof effect, but also can use air flow and add explosion-proof air conditioning to improve the heat dissipation effect. In addition, the positive pressure cabinet has a small size and low cost, which can meet a variety of needs and ensure the safe operation of the equipment.