
East EA890 (10kVA-120kVA 3-Phase Industrial Low-Frequency Online UPS)
The East EA890 series is a 10kVA to 120kVA 3-phase in/out heavy-duty low-frequency online double-conversion UPS, engineered with a built-in output galvanic isol

High-reliability online double-conversion high-frequency Uninterruptible Power Supply (UPS) delivering zero-millisecond pure sine wave power to critical IT loads.
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High-reliability online double-conversion high-frequency Uninterruptible Power Supply (UPS) delivering zero-millisecond pure sine wave power to critical IT loads.
The East EA900RT series combines advanced DSP digital control architecture with high-frequency IGBT conversion to deliver 1kVA to 10kVA capacity with a high output power factor (0.9/1.0). Engineered for physical versatility, the 2U/3U convertible chassis adapts seamlessly to standard 19-inch IT enclosures or vertical floor mounts with a rotatable multi-functional LCD interface. The true online double-conversion topology completely isolates critical loads from grid surges, sag, frequency drift, and harmonic distortion, achieving up to 95% full-load efficiency and 98% in ECO mode. Internal intelligent fan speed control optimizes directed airflow across magnetic components, mitigating thermal throttling while extending MTBF. Accommodating both internal valve-regulated battery packs and modular external battery banks (EBM), the unit delivers ruggedized continuous power for edge computing, transmission hubs, and automated plant backbones.
The East EA900RT is an enterprise-grade 1kVA-10kVA double-conversion online high-frequency UPS featuring a convertible 2U/3U rackmount and tower form factor, engineered to deliver pure sine wave output and zero-transfer-time AC power backup across an ultra-wide input voltage envelope for mission-critical telecom and industrial IT networks.
| Key specifications | Value |
|---|---|
| Rated Output Power | 1kVA ~ 10kVA (Output Power Factor 0.9 / 1.0) |
| UPS Topology Type | Online Double-Conversion |
| Physical Form Factor | 19-Inch Rackmount |
| AC Input Voltage | 110V AC ~ 300V AC (Ultra-Wide Single-Phase Grid Tolerance) |
| Power Conversion Efficiency | ≥ 95% |
| Battery Connection Mode | Internal High-Rate Batteries or External Battery Enclosures |
| Communication Interfaces | USB + RS232 + Intelligent Communication Slot (SNMP Optional) |
| Operating Temperature Range | 0°C to +40°C |
HEFENGQI

The East EA890 series is a 10kVA to 120kVA 3-phase in/out heavy-duty low-frequency online double-conversion UPS, engineered with a built-in output galvanic isol

High-reliability online double-conversion high-frequency Uninterruptible Power Supply (UPS) delivering zero-millisecond pure sine wave power to critical IT loads.

High-reliability online double-conversion high-frequency Uninterruptible Power Supply (UPS) delivering zero-millisecond pure sine wave power to critical IT loads.

High-reliability online double-conversion high-frequency Uninterruptible Power Supply (UPS) delivering zero-millisecond pure sine wave power to critical IT loads.