Exact Extract — Huawei HCSA-Presales-Data Center Facility (Modular DC) V1.0 Training Material, PDF page 39

“FusionModule800: One Row One DC ⚫ Total IT racks: 0~12 rack Integrated architecture Electrical cable tray (optional) ⚫ Cooling: Rack A/C（12.5kW/pcs) Data cable tray(optional) ⚫ Cold and hot aisle containment: Cold aisle containment Spring to open the door(rear) 250mm+1100mm hot aisle containment. Camera (optional) Spring to open the door(front) ⚫ Maximum IT load: ≤ 40kW（T1), Indicator light ⚫ Power density per rack ≤ 7kW(T1) Glass PDU door 2000 mm Touch screen UPS Aisle Monitoring module Cooling 1100 mm Hot aisle 250 mm Cold aisle Maximum racks configuration: 1 ≤ N ≤ 12 39 ”

Technical Deep Dive

The 40 kW number is the maximum IT load under the specified T1 condition for the higher-capacity FusionModule800 configuration. Smaller BC configurations provide lower ceilings; 25 kW is not the product-family maximum. Maximum IT load must be kept distinct from the UPS apparent-power nameplate and from cooling-unit capacity. The original question document's 25 kW explanation is incorrect and is replaced by the exact Huawei training specification.

FusionModule800 uses standardized configurations for different power and availability needs. Engineers must distinguish UPS apparent-power rating, permitted IT load, cooling output, power-path redundancy and installed optional functions. Validating these parameters together prevents an apparently attractive cabinet combination from failing installation, thermal management or service-continuity requirements.

Verification principle: confirm the exact product revision, operating condition, selected option and relevant Huawei documentation before using this result in a customer proposal. A feature shown for a particular configuration should not automatically be assumed to apply to every module or installation; normal technical, commercial and safety checks still apply.

Technical verification warning: Corrected source explanation: maximum FusionModule800 IT load is 40 kW, not 25 kW.

Source reference: uploaded Huawei training material, PDF page 39.