Huawei UPS5000-H is a modular UPS platform built by paralleling standardized power modules inside the power cabinet to form different system capacities. In this architecture, the ''single power module'' is the basic building block that contributes a fixed rated apparent power to the total UPS capacity. For the UPS5000-H series, each power module is rated at 100 kVA, and the system capacity is achieved by installing multiple 100 kVA modules and configuring redundancy (such as N+1). This modular approach improves availability and O&M efficiency because a failed module can be isolated and replaced without shutting down the entire UPS, while the remaining modules continue carrying the load within their capacity limits. Using 100 kVA as the module rating also simplifies planning: technicians can quickly estimate remaining headroom by counting active modules and comparing total available kVA/kW against the real-time load, ensuring the UPS stays within recommended loading and redundancy margins during maintenance or fault conditions.