New Energy
Three-Phase Cabinet-Type Solar Hybrid Off-Grid Inverter 15kW/20kW/25kW (Series up to 35kW)
Three-Phase Cabinet-Type Solar Hybrid Off-Grid Inverter (15/20/25kW, Series up to 35kW)
Product Overview
This series of high-power three-phase cabinet-type solar hybrid inverters adopts a line-frequency isolated architecture with three-phase four-wire (3P4W) input and output, rated voltage selectable from 380/400/415V — widely used in factories, shops, hotels and off-grid PV plants. Integrating rectifier, inverter, bypass switching and battery management, it automatically schedules three energy flows (mains / PV / battery), offers online-adjustable phase voltage of 220/230/240V (L-N), and provides RS232/RS485 communication with dry-contact remote alarms for easy monitoring integration.
Key Features
- Line-frequency isolation, robust & durable: 380V three-phase four-wire main circuit, power factor 0.8, crest factor 3:1 — handles impact loads;
- High output quality: THD <2% linear / <5% nonlinear load; transient response ±1% (>70ms); tight regulation (frequency 50/60Hz±0.1%);
- Clear overload strategy: with mains: 105% for 10 min, 125% for 1 min then auto bypass; battery mode: 105% for 60 s, protection shutdown beyond 125% time limit;
- Online-adjustable phase voltage: 220/230/240V (L-N) selectable — fits different national standards;
- Bypass design: built-in single-phase 4-wire bypass (input range -15%~+25%) — maintenance without power loss;
- Battery management: maintenance-free sealed lead-acid batteries (model per order), configurable DC low-voltage protection, dry-contact alarms;
- Full monitoring: RS232/RS485 (modem optional), SNMP card optional — easy remote monitoring integration;
- Environmental adaptability: continuous operation <40℃, humidity <95% non-condensing, noise <60dB (1 m), IP20 protection, 4500m altitude.
Main Specifications (15/20/25kW models)
| Item | 15KW | 20KW | 25KW | |
|---|---|---|---|---|
| Power factor | 0.8 | |||
| Input | Phase | 3 phase 4 wire and ground | ||
| Voltage Range | 380V (3P4W), three-phase voltage ±20% | |||
| Frequency Range | 50Hz/60Hz auto-sensing | |||
| Output | Bypass | 1 phase 4 wire and ground | ||
| Phase form | 1 phase 4 wire and ground | |||
| Crest factor | 3:1 | |||
| Rated voltage | 380/400/415V options, -5%~+5% rated (5% linear load) | |||
| Phase voltage setting | 220 / 230 / 240V (L-N), online adjustable | |||
| Quality | Transient / Frequency / THD / Short-circuit | ±1% (>70ms); 50/60Hz±0.1%; <2% linear / <5% nonlinear; load current for 60 seconds | ||
| Battery | Type | Maintenance-free sealed lead-acid | ||
| DC low-voltage protection | Configurable (see datasheet per voltage system) | |||
| Efficiency | Whole unit | ≥85% | ||
| Inverter | ≥95% | |||
| Monitoring | Dry contacts (battery low / discharging / bypass / fault output); RS232/RS485 (modem optional); SNMP optional | |||
| Environment | Running temperature | <40℃ continuous | ||
| Relative humidity / Noise | <95% non-condensing; <60dB at 1 m | |||
| Protection / Altitude | IP20; 4500 m above sea level | |||
| Size & Weight (to be verified) | Product size(mm) | 300×570×730 | 560×570×800 | 560×570×800 |
| Product weight(kg) | 95 | 110 | 120 | |
Typical Applications
| Sector | Typical Use |
|---|---|
| Factories / Workshops | Mixed three-phase power & lighting loads — PV priority saves bills, mains/battery auto backup |
| Hotels / Shops / Offices | High-power uninterrupted supply; bypass keeps power during maintenance |
| Off-Grid PV Plants | PV array + battery bank forming a three-phase off-grid plant for pumps, cold rooms and other motor loads |
| Highland / Remote Areas | Rated for 4500m altitude and harsh grid conditions |
Certifications & Service
- Certificates: TUV, ETL, ISO, CE, RoHS (per ordered model);
- OEM/ODM supported; MOQ 1 set, samples available; T/T, L/C accepted.
Why Choose XD?
With years of manufacturing and export experience in new energy and power equipment, XD serves major off-grid PV markets across Africa, Southeast Asia, the Middle East and South America. PV modules, batteries, inverters and distribution cabinets are available as a package, with system configuration design and full export documentation support. Send us your load list — our engineers will propose the optimal solution.
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Contact Us
Contact: Tianjin Delda Trading Co., Ltd
WhatsApp: +86 13662056855
Tel:
E-mail: solomon20210701@tjxddq.com
Add: Unit‑101, Workshop 3, Bozhong Automobile Industrial Park, No.5 Xianghui Road, Intersection of Xianghui Road and Gaoying Road, Beizhakou Town, Jinnan District, Tianjin, China