Description
Growatt WIT 50K-XHU is a high-capacity, three-phase hybrid inverter built for commercial and industrial (C&I) solar-plus-storage projects — factories, warehouses, small commercial buildings, and multi-tenant sites that need serious power alongside intelligent energy management. Delivering 50kW of rated AC output and accepting up to 100kW of PV input, the WIT 50K-XHU is engineered for high-yield, high-reliability performance at scale.
With 4 independent MPPT trackers and 8 string inputs across a wide 620–1100VDC voltage window, this inverter supports a DC/AC ratio of up to 2.0 and string currents up to 20A per input — ideal for pairing with today’s high-power PV modules across varied roof or ground-mount layouts. Peak conversion efficiency reaches up to 98%, keeping conversion losses low even at full commercial load.
The WIT 50K-XHU integrates with Growatt’s high-voltage battery ecosystem (including AXE and APX series) through 3 independent battery input channels, each rated up to 55A of charge/discharge current — giving installers flexibility to size and stage battery capacity as a project’s storage needs grow. Built-in UPS and black start functionality allow the system to restore power without relying on the grid, while support for multiple systems running in parallel in off-grid mode enables microgrid-style deployments for critical facilities.
Designed for demanding electrical environments, the inverter delivers 100% three-phase unbalanced output, 110% continuous AC overload capacity, and a 150% off-grid overload rating for 10 seconds — enough headroom to start heavy motors and handle uneven commercial load profiles. It’s also built for weak-grid tolerance (SCR<1.2), making it a strong fit for sites with less stable utility infrastructure. Intelligent air cooling maintains full-rated output with no derating up to 50°C ambient temperature, and the IP66-rated enclosure supports outdoor installation in harsh conditions. Safety features include Type II surge protection on both DC and AC sides and active AFCI arc-fault detection, while WiFi, Ethernet, and RS485 connectivity keep the system visible through Growatt’s monitoring platform.
Key Features
- 50kW three-phase AC output — built for commercial and industrial-scale solar-plus-storage
- Up to 100kW max PV input power — DC/AC ratio up to 2.0 for aggressive array oversizing
- 4 MPPT trackers / 8 string inputs — 620–1100VDC range, up to 20A per string
- Up to 98% max efficiency — minimal conversion losses at full commercial load
- 3 independent HV battery inputs — up to 55A charge/discharge current per channel
- Compatible with Growatt AXE / APX high-voltage battery systems
- UPS & black start capability — restores power without grid dependency
- Multi-system parallel off-grid operation — supports microgrid-style deployments
- 100% three-phase unbalanced output — stable power under uneven load distribution
- 110% continuous AC overload / 150% off-grid overload (10s) — handles motor start-up and peak demand
- Weak-grid adaptability (SCR<1.2) — reliable performance on unstable utility grids
- Intelligent air cooling — no power derating up to 50°C ambient
- IP66 protection rating — suitable for demanding outdoor/industrial environments
- Type II SPD (DC & AC) + Active AFCI — advanced surge and arc-fault protection
- WiFi / Ethernet / RS485 monitoring — Growatt Monitoring Platform integration
Technical Data Table
