Low Frequency UPS 20KVA Double Conversion Online UPS Online Uninterruptible Power Supply, Transformer base
The DP33 Series by RSUN delivers reliable three-phase double-conversion UPS performance from 10kVA to 200kVA. Engineered with full DSP control, it ensures high-precision voltage regulation and seamless output during grid fluctuations, surges, or harmonics.
Its intelligent communication interfaces (RS232, SNMP, GPRS) support remote access and integration into centralized energy systems. Designed for scalability and continuous operation, DP33 is ideal for sensitive industrial, telecom, and data center loads.
FEATURES:
• High-performance DSP processor
• Parallel N+X redundancy with battery sharing
• Dual AC input and smart battery control
• Remote monitoring support
• Easy front-panel operation
• Flexible battery and system configuration
SPECIFICATIONS:
| Model |
6KVA |
10KVA |
15KVA |
20KVA |
30KVA |
40KVA |
60KVA |
80KVA |
100KVA |
120KVA |
160KVA |
200KVA |
| INPUT |
| Voltage |
(208/308/400/480Vac) ± 20% / 5 wires (3 lines + neutral + ground) |
| Frequency |
50/60Hz ± 10% Auto sensing |
| Power factor |
0.8 |
| Filter |
EMI, RFI |
| Dual input |
optional |
| OUTPUT |
| Voltage |
(208/308/400/480Vac) ± 20% / 5 wires (3 lines + neutral + ground) |
| Frequency |
50/60Hz ± 1% Auto sensing |
| Power factor |
0.8 |
| Crest factor |
3:1 |
| Voltage T.H.D. |
<2% with linear load |
| Efficiency |
AC/AC>92% |
| Transfer time |
0 ms |
| Wave form |
sine wave |
| Technology |
true on-line double conversion controlled by microcontroller |
| Overload recovery |
automatically transfer to UPS mode |
| Isolation transformer |
inverter mode (bypass mode is optional) |
| Parallel connection |
parallel connection function is ready (extra PCB is not reuired) |
| BATTERY |
| Battery type |
VRLA (valve regulated lead acid), not included |
| DC voltage |
384 Vdc |
| Charging time |
4 hours up to 90% |
| Battery detection |
self-detect, transfer to battery mode adjustable |
| PROTECTION |
| Lightning and transient protection |
hot swappable lightning and transient surge suppressor (in:10Kamp, Up:1.5 Kv, I max: 20 Kamp.) |
| Harware protection |
input breaker, output breaker, battery breaker, bypass breaker; DC fuse, fan, redundant power supply; temperature sensor, EPO (Emergency Power Off), audible alarms etc. |
| Software protection |
discharging batteries, battery charger working mode, inverter working mode, emergency power off, manual shutdown, bypass SCR failure, bypass sequence failure, bypass over the limit, critical overload, batteries exhaustion, low or high output voltage, DC fuse open, 5V power supply failure, 13.5 power supply failure, inverter overvoltage, 200% overload on each line, transfer failure, inverter voltage out of range, over voltage betweenneutral and ground, UPS on bypass mode, bypass frequency out of range. |
| Bypass |
solid state |
| Communication |
RS232 intelligent slot, modem, SNMP(RJ45) (SNMP adaptive software is supplied by the producer) |
Advanced communication function:
Integrated Remote Management
Equipped with RS232 and optional SNMP/GPRS interfaces, the UPS allows full monitoring via PC or network. Compatible with major OS platforms and protocols (TCP/IP, SNMP, HTTP), it enables centralized control, even across distributed sites. Real-time data access, fault alerts, and remote maintenance simplify power system management at scale.
APPLICATIONS:
• Facilities housing mission-critical computing and storage systems
• Automation lines, PLCs, and process control units in factories
• Corporate IT systems requiring long-duration backup and stable power
• Electronic instrumentation and systems requiring pure sine wave supply
• Environments where power stability directly impacts operational continuity
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