Feature 01
4.3" touch display with smart power distribution across PV, grid, and battery sources.
Product Detail
BJ-ULTRA-4-11K
Inverters
Techfine BJ ULTRA 4–11 kW On/Off-Grid Hybrid Inverter (24V/48V)
On/off-grid MPPT hybrid inverter family for residential and light commercial sites, covering 4–11 kW with 24V or 48V battery options. Supports up to 6 units in parallel, 500V PV input, and can operate without a battery (model-dependent) for cost-sensitive projects.
Key features
Feature 02
Supports lithium battery auto-start and optional WiFi monitoring; built-in BMS functions (per spec sheet).
Feature 03
Parallel up to 6 units for capacity expansion; can run without a battery to lower system cost (where applicable).
Specifications
- Models
- BJ4024SMH · BJ6248SMH · BJ8548SMH · BJ11048SMH
- Power range
- 4.0 / 6.2 / 8.5 / 11.0 kW
- Battery voltage
- 24V (BJ4024) · 48V (others)
- PV input
- MPPT · max Voc 500V · MPPT range 60–500V (varies by model)
- Parallel
- Up to 6 units
- Efficiency
- Up to 98% (DC/AC, max)
- Monitoring
- Optional WiFi; expansion slot for BMS/WiFi cards
Applications
- 1Homes and villas
- 2Small shops
- 3Distributor hybrid kits
- 4Off-grid upgrades
Export support
- 1Fits cost-sensitive hybrid kits where on/off-grid operation is required.
- 2Works with 48V wall LFP batteries and common hybrid inverter ecosystems.
- 3Quote-ready RFQs: include PV size, battery voltage, and whether parallel expansion is needed.
Buyer FAQ
Techfine vs Deye for 10 kW home projects?
Compare certification, local service, and battery compatibility. We can quote either brand if both meet your market rules.
Is there a three-phase option?
BJ ULTRA is single-phase focused. For 3-phase homes use Deye SUN 3–12K or similar—describe your site.
What should I include in an RFQ for faster sizing?
Destination market, PV array size, battery voltage (24V/48V), load type (motor/household), and whether you need on/off-grid with generator support. If you plan parallel expansion, include target total kW.
Hybrid inverter inquiry
Request a quote for Techfine BJ ULTRA inverters
Tell us target kW, battery voltage (24V/48V), PV size, and destination market. We’ll reply with pricing, lead time, and compatible battery options.