The Zain Stackable Solution represents a cutting-edge approach to modular telecom infrastructure, featuring a high-performance DC power cabinet (750W750D1000Hmm) stacked securely atop a dedicated battery storage cabinet (750W750D1300Hmm). This dual-tier architecture offers a total system height of 2300mm, providing a space-efficient footprint for high-density site deployments.
Engineered for longevity, the DC cabinet is constructed from 1.2mm galvanized sheet, while the battery base utilizes 1.5mm hot galvanized sheet for superior structural support. The stacking interface is meticulously engineered with waterproof rubber strips and secured by heavy-duty nuts and bolts to ensure a weather-tight seal. Inside, the cabinet is lined with fireproof silver insulation cotton to maintain thermal stability and protect sensitive components.
Designed for demanding off-grid and telecom site expansions, this highly adaptable dual-tier architecture physically separates the power equipment from the energy storage. It features a robust DC power cabinet stacked securely atop a dedicated high-capacity battery base cabinet.






| Total Stacked Dimensions | W750mm × D750mm × H2300mm (Combined height) |
| DC Equipment Cabinet | W750mm × D750mm × H1000mm. Built with 1.2mm thick galvanized sheet. Features LED access lights and bottom ground copper bar. |
| Battery Cabinet Base | W750mm × D750mm × H1300mm (Includes 150mm base). Built with 1.5mm hot galvanized sheet. Accommodates 4 pairs of battery racks. |
| Battery Integration | Designed for 4U 150Ah batteries (H179 × W486 × D550mm, ~60kg) installed inside standard racks with 1U spacing. |
| Thermal Management | Battery cabinet features a dedicated DC 48V Heat Exchanger (150 W/K). Dimensions: 450 × 560 × 250 mm. |
2. Precision Cable Entry System
Features strategically placed cable entry holes (4*¢50) at the front left and right sides of the cabinet bottom to streamline external wiring.
3. Waterproof Stacking Mechanism
The top DC cabinet is securely stacked onto the battery base using robust nuts and bolts. The interface is meticulously treated with thick waterproof rubber strips and specialized waterproof nuts to guarantee all-weather resilience.



4. Internal Routing and Insulation
Internal cable routing is facilitated by multiple 50mm diameter holes alongside the 19'' installation profiles. Furthermore, the inner walls are fully lined with fireproof, silver-colored insulation cotton to strictly control internal temperatures.


5.Cabinet inner wall insulation cotton is fireproof material with silver color

| Category | Detailed Parameters |
|---|---|
| Input Specifications | Phase: Three-phase compatible with single-phase. |
| Voltage & Freq: Rectifier input: 85VAC - 300VAC (Rated 220VAC for 1P & 380VAC for 3P). Freq: 45Hz – 65Hz (Rated value: 50Hz/60Hz) | |
| Input Capacity & Protection: 1×63A/3P MCB. AC input SPD: Preferred Type 1, Max discharge current 30-60KA. | |
| Output & Distribution | Operating Voltage: 42VDC - 58VDC. |
| Maximum Capacity: 24 kW (Supports up to six 4kW rectifiers). | |
| Branch Details: Battery: 4×125A MCB. LLVD: 4×125A, 4×80A. BLVD: 4×80A, 4×63A, 4×40A. | |
| DC Output Protection: SPD 20-40 KA differential and common modes. | |
| Rectifier Module | Efficiency: > 96% (230VAC, 20-80% load rate). |
| Rated Power: 2000 - 4000W per module. Fan cooled with soft-start feature. | |
| Smart Features: Includes load sharing functionality and an impeded voltage relay. | |
| Controller & Environment | Interface: LCD Display, RS232, RS485, CAN, FE, LAN ports. |
| Signals: Internal alarms (AI, DI), 8 dry contact alarm outputs. Stores up to 1000 historical records. | |
| Environment: Operating temp: -40˚C to +45˚C (with heat exchanger). Humidity: 5% - 95% (non-condensing). |
Below is the detailed 8U design featuring the conventional MCB layout. The FSU is designed as a separate 1U module which can be seamlessly installed into the battery cabinet. To facilitate efficient wire management, the back positive output is equipped with custom Expansion Copper Bars, while the negative MCBs feature unique Key-shaped Terminals.

Special Expansion Copper Bar
MCB with Key-shaped Terminal


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