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| Technical Specifications | ||
| Operating temperature | -40°C to +65°C | |
| Transport temperature | -40°C to +70°C | |
| Storage temperature | -40°C to +70°C | |
| Operating humidity | 5%–95% RH (non-condensing) | |
| Storage humidity | 5%–95% RH (non-condensing) | |
| Altitude | 0 m to 4000 m | |
| (When the altitude ranges from 2000 m to 4000 m, the operating temperature decreases by 1°C for each additional 200 m.) | ||
| AC input | Input system | DC input (SSU); 220 V AC single-phase input (rectifier) |
| Input frequency | 45–66 Hz (rated frequency: 50 Hz or 60 Hz) | |
| Power factor (PF) | ≥ 0.99 (rated input and load) | |
| DC output | Output voltage range | –42 V DC to –58 V DC |
| Default output voltage | –53.5 V DC | |
| Maximum output power | 21,000 W (only AC input) | |
| 24,000 W (AC input and PV input) | ||
| Regulated voltage precision | ≤ ±1% (output voltage of within 53.5 V ±0.1 V at 50% load) | |
| Peak-to-peak noise voltage | ≤ 200 mV (rated input voltage and load) | |
| Psophometrically weighted noise | ≤ 2 mV (300–3400 Hz; input power ≤ 264 V AC) | |
| Current sharing imbalance | ≤ ±5% (50%–100% load) | |
| AC input protection | AC input overvoltage protection threshold | ≥ 300 V AC |
| AC input overvoltage recovery threshold | 290–300 V AC | |
| AC input undervoltage protection threshold | ≤ 80 V AC | |
| AC input undervoltage recovery threshold | 80–90 V AC | |
| DC output protection | DC output overvoltage protection threshold | –58.5 V DC to –60.5 V DC |
| If overvoltage occurs due to an internal fault, the rectifier locks out. | ||
| If the external voltage is greater than –63 V DC for more than 500 ms, the rectifier locks out. | ||
| DC surge protection | Differential mode: 10 kA (8/20 μs); common mode: 20 kA (8/20 μs) | |
| Safety | IEC/EN60950-1/GB 4943 and CE certification | |
| Mean time between failures (MTBF) | 200,000 hours (at 25°C) | |
| Power system dimensions (H x W x D) | 263.9 mm x 482 mm x 330 mm | |
| Weight | ≤ 25 kg (excluding modules) | |
| Protection level | IP20 | |
| Installation mode | Installed in a 19-inch rack | |
| Cabling | Routed in and out from the top | |
| Maintenance mode | Maintained from the front | |
| Heat dissipation mode | Natural heat dissipation | |
| Power Distribution Specifications | ||
| Input system | DC input (SSU); 220 V AC single-phase input (rectifier) | |
| Input power distribution | AC input: six UT-6 terminals | |
| DC input: one 1-pole 63 A circuit breaker and one UT-16 terminal | ||
| Output power distribution | BLVD route: three 1-pole 100 A circuit breakers | |
| LLVD route: three 1-pole 100 A circuit breakers | ||
| Battery route | Four 1-pole 125 A circuit breakers | |
| System Configurations | ||
| Application environment | Indoor Class B | |
| Subrack | 3 U power distribution space | |
| 1 U SMU space | ||
| 2 U rectifier and SSU space | ||
| Power distribution unit (PDU) | Input power distribution: DC input circuit breaker and terminal for the SSU; AC input terminals for rectifiers | |
| Output power distribution: battery low voltage disconnection (BLVD) route, load low voltage disconnection (LLVD) route, and battery route | ||
| SSU | One S4850G1 | |
| Rectifier | A maximum of seven R4850N2s, R4850G2s or R4850S1s | |
| SMU | SMU02B | |
| User interface module (UIM) | UIM02C | |
| Surge protective device (SPD) | DC surge protection. Differential mode: 10 kA (8/20 µs); common mode: 20 kA (8/20 µs) | |
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