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MKSII 5KW Off-Grid Inverter

The MKSII 5kW off-grid inverter provides 5000W rated power, pure sine wave output and a 48V battery system for residential and small business applications. Its MPPT supports up to 4500W PV array power, 120-430Vdc operating range and 80A solar charging. It also supports 80A AC charging, parallel operation up to 9 units, DSP control, PFC and optional Wi-Fi.

Quick Summary: The MKSII 5kW off-grid inverter delivers 5000W rated power with pure sine wave output for residential and small business systems. It supports a 48V battery, up to 4500W PV array power, 80A MPPT and 80A AC charging. Parallel operation supports up to 9 units, with RS232, USB, dry contact and optional Wi-Fi.

Key Features

  • ✓5000W rated power with pure sine wave output at 220/230/240Vac
  • ✓48Vdc battery system with 54Vdc floating charge voltage
  • ✓MPPT solar charging with up to 4500W PV array power
  • ✓120-430Vdc MPPT range and 450Vdc maximum PV open-circuit voltage
  • ✓80A maximum solar charge current and 80A AC charge current
  • ✓Parallel operation support for up to 9 inverter units
  • ✓DSP digital control with input PFC and output power factor 1.0
  • ✓RS232, USB, dry contact and optional Wi-Fi remote monitoring

Common FAQs

How should this inverter be sized for a home or small business?

Compare the required continuous and surge loads with 5000W rated power and surge power of twice rated power for 5 seconds. Check motor starts, power factor, overload behavior and the planned battery and PV system. Final sizing depends on the complete load profile and configured operating mode.

What battery configuration does the inverter require?

The inverter uses a 48Vdc battery system, with 54Vdc floating charge and 66Vdc over-charge protection. Confirm the selected battery chemistry, charge settings, continuous current, protection devices, cabling and communication requirements before connection. This product is an inverter and does not include a battery or battery cycle rating.

How should the PV array be specified?

The MPPT operating range is 120-430Vdc, maximum PV open-circuit voltage is 450Vdc and maximum PV array power is 4500W. Solar charging current is limited to 80A. Confirm module voltage at site temperature, string design, protection and local installation requirements before commissioning.

Can multiple MKSII 5kW inverters operate together?

Yes. The specification supports parallel operation with up to 9 units. Confirm the required output configuration, battery bank, PV arrangement, protection, cabling, communication and commissioning procedure for the planned quantity. Parallel compatibility must be checked for the selected units and complete system before ordering.

What transfer time and backup behavior should be expected?

The published transfer time is 10ms in UPS-like mode and 20ms in household mode. AC output is 220/230/240Vac ±5%, with 230Vac as the default. Confirm the selected mode, connected load, utility conditions and equipment tolerance before using the inverter for sensitive or continuity-dependent applications.

Which monitoring and connection interfaces are available?

The inverter provides RS232, USB and dry contact interfaces, with optional Wi-Fi for remote monitoring. Confirm the required option, cable arrangement, monitoring device and software compatibility for the project. The specification does not establish a particular monitoring platform, so those details should be checked with our team before ordering.

What protections and installation details should be reviewed?

The unit provides comprehensive protection, battery equalization, cold start and an anti-dust kit. It measures 125 × 310 × 480mm. Review ventilation, clearances, wiring, protective devices, battery settings, PV isolation and installation conditions before commissioning. Confirm site requirements with our team because an IP rating is not specified.

Which documents are available, and what is needed for a quotation?

CE and RoHS documents are available. Every order includes a 3-year limited warranty. For a quotation, provide application, load profile, battery details, PV array design, utility conditions, parallel quantity, monitoring option, quantity and destination. Confirm target-market documentation, labeling and final configuration with our team.

Why Source From LINEX

Factory-Direct Wholesale OEM / ODM & private label support for importers and distributors.
3-Year Warranty Covered on every product we ship.
Certified Quality CE · RoHS on file for every model.
100% Tested Before Shipment Every unit capacity- and safety-tested before it ships.
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