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Hoymiles MIT-4000-8T Microinverter 4 KW 1 Phases 4 MPPT
The Hoymiles MIT-4000-8T is an 8-in-1 three-phase microinverter providing 4.0 kVA output with 4 MPPTs, low DC voltage (max 140 V) and IP67 protection for safe, compact rooftop deployments. It supports Sub-1G monitoring to the Hoymiles S-Miles Cloud, passive cooling and high conversion efficiency (peak 97.4 %) for reliable commercial PV installations.
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Performance data
DC
| Power | 0,7 KW |
| Power max. | 2,6 KW |
| Current | 20,0 A |
| Current Max. | 80,0 A |
| Voltage | 32,0 V |
| Voltage Max. | 140,0 V |
| MPPT | 4 |
| String Inputs | 4 |
AC
| Power | 4,0 KW |
| Power max. | 4,0 KW |
| Current | 5,8 A |
| Current Max. | 17,4 A |
Dimensions
| length | 395 mm |
| width | 308 mm |
| Height | 60 mm |
| weight | 9 kg |
Manufacturer warranty
| Product warranty | n/a |
Certificates
English
| Data Sheet |  |
| Other | |
Hoymiles MIT-4000-8T – 4.0 kVA (three-phase) 8-in-1 microinverter
The Hoymiles MIT-4000-8T is an 8-in-1 commercial microinverter delivering 4,000 VA rated output (three-phase), engineered to connect eight high-power PV modules to a single unit. It features 4 independent MPPTs, a low maximum DC input of 140 V, an MPPT operating window of 12–136 V, a peak conversion efficiency of 97.4 % (EU weighted ≈ 96.1 %) and a rugged IP67 outdoor housing in a compact package (395 × 308 × 60 mm, ≈9 kg). The unit supports Sub-1G wireless monitoring (Hoymiles S-Miles Cloud), passive (fanless) cooling and flexible Flex-T5 cabling for fast rooftop installation.
✅ Benefits for installers
• High aggregated power (4 kVA) – one device serves eight modules, reducing inverter count and BOS costs.
• 8-in-1 with 4 MPPTs – multiple MPPTs maximise energy harvest for arrays with mixed orientations or partial shading.
• Low DC voltage for increased safety – max. 140 V lowers arc-fault and electric-shock risks on the roof.
• Outdoor-ready & compact – IP67 protection and small footprint allow close-to-module mounting and simple logistics.
• High efficiency & low losses – 97.4 % peak efficiency and 99.8 % MPPT efficiency improve overall system yield.
• Silent, maintenance-free operation – passive cooling eliminates fans, reducing O&M and noise.
• Easy monitoring & remote diagnostics – Sub-1G wireless to Hoymiles gateway + S-Miles Cloud provides module-level visibility.
• Grid friendly – three-phase output, low THD (<3 %) and adjustable power factor for grid code compliance.
• 8-in-1 with 4 MPPTs – multiple MPPTs maximise energy harvest for arrays with mixed orientations or partial shading.
• Low DC voltage for increased safety – max. 140 V lowers arc-fault and electric-shock risks on the roof.
• Outdoor-ready & compact – IP67 protection and small footprint allow close-to-module mounting and simple logistics.
• High efficiency & low losses – 97.4 % peak efficiency and 99.8 % MPPT efficiency improve overall system yield.
• Silent, maintenance-free operation – passive cooling eliminates fans, reducing O&M and noise.
• Easy monitoring & remote diagnostics – Sub-1G wireless to Hoymiles gateway + S-Miles Cloud provides module-level visibility.
• Grid friendly – three-phase output, low THD (<3 %) and adjustable power factor for grid code compliance.
Technical data — Hoymiles MIT-4000-8T (key values)
- Rated AC output: 4,000 VA (three-phase).
- Rated AC current: 3 × 5.79 A.
- AC nominal voltage / connection: 230/400 V, 3L+N+PE; 50/60 Hz.
- Recommended module power: 400–650+ W (compatible with large-format modules).
- Max. DC input voltage: 140 V; MPPT window: 12–136 V (typical MPPT ~58–136 V).
- Max input / Isc per input: 4 × 20 A / 4 × 25 A.
- Number of MPPTs: 4 (8 module inputs via Flex-T5).
- Efficiency: Peak 97.40 % | EU weighted 96.10 %; MPPT efficiency 99.80 %.
- Mechanical / environment: 395 × 308 × 60 mm | ≈ 9 kg | Ambient −40 → +65 °C | IP67.
- Cooling / topology / comms: Passive convection, transformerless, Sub-1G wireless; monitoring via S-Miles Cloud.
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Grid performance: THD < 3 %, adjustable power factor; complies with relevant IEC/EN/UL standards.
Project offer
The MIT-4000-8T is especially well suited for commercial rooftops where high per-unit PV capacity, module-level monitoring and a robust weatherproof design help lower installation and operating costs. The device can be sourced via SolarTraders from certified distributors with buyer protection and transparent pricing — register to request a project quote and roof-layout recommendation.
Hoymiles
Hoymiles is a global MLPE (Module Level Power Electronics) solution provider, specializing in module-level inverters (microinverters) and storage systems.
With a vision of a clean, sustainable future, Hoymiles strives to lead the smart energy industry through their rugged technology and reliable products.
With a vision of a clean, sustainable future, Hoymiles strives to lead the smart energy industry through their rugged technology and reliable products.
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