Growatt MID 30–50KTL3-X2

Commercial PV inverter

Growatt's current English datasheet names 33, 36, 40 and 50 kW X2 inverters. Its earlier regional datasheet and matching manual additionally name MID 30KTL3-X2-1. The manual separates an RS485 monitoring pair from meter and reserved pins; none of the retained documents establishes a firmware-matched Edge register contract or control permission.

Growatt MID 30–50KTL3-X2 commercial PV inverter
  • RS485

Commercial PV inverter

Compatibility

Direct Edge reading requires the exact register contract

The X2 manual shows a monitoring RS485 pair, a separate meter pair and optional USB logging modules. It does not establish the model- and firmware-matched third-party register map, readable point semantics, client coexistence or safe control permissions needed for Edge.

MID 33KTL3-X2, 36KTL3-X2, 40KTL3-X2 or 50KTL3-X2 under the 2026 English datasheet. MID 30KTL3-X2-1 is documented in an older official regional datasheet and manual, so confirm its country availability and installed nameplate. Excludes MID TL3-X, MID TL3-X3, MID TL3-XH, MID TL3-XL2 and other X2 ratings.

Models

Download
ModelsInterfaceRoute into Edge
MID 30KTL3-X2-130 kW, three MPPTs in the older official regional datasheetThe current English datasheet omits this model. Confirm the actual country listing, nameplate, firmware and project approval before selecting it.
MID 33KTL3-X2 and MID 36KTL3-X233 or 36 kW, three MPPTs with two strings per MPPTUse the installed model and current regional grid configuration for its electrical limits.
MID 40KTL3-X2 and MID 50KTL3-X240 or 50 kW, four MPPTs with two strings per MPPTDo not substitute the similar MID X, X3 or XH generations or assume their interface maps apply.

Specifications

Growatt's May 2026 English datasheet is marked preliminary and covers MID 33KTL3-X2, 36KTL3-X2, 40KTL3-X2 and 50KTL3-X2. The first two have three MPPTs and the latter two four, each with two strings per MPPT. It gives 1,100 V maximum DC input and 32 A maximum input per MPPT; check final regional data before design.2

Current English range
33, 36, 40 and 50 kW X2 variants2
Earlier regional model
MID 30KTL3-X2-1, 30 kW, three MPPTs34
PV inputs
Three MPPTs on 33/36 kW; four on 40/50 kW; two strings per MPPT2
Communications
Separate RS485 monitoring and meter pairs; optional USB logger4
Enclosure
IP66; -25 to +60 °C in the May 2026 sheet2
Monitoring accessories
The current sheet names ShineWilan-X2 for one inverter and ShineMaster4G-X or SEM-XA-R for parallel devices2

Interface

Documented measurements and integration boundaries for MID 30–50KTL3-X2.

  • The manual's RS485 A1/B1 pair is presented for inverter monitoring. The separate A3/B3 pair is for an anti-backflow meter; A2/B2 is marked reserved for battery communication. Verify the exact terminal and commissioned wiring before any third-party client is attached.
  • The USB-A logger path and Growatt Shine monitoring service are distinct from a direct Edge RS485 reading. A named monitoring accessory does not establish its local export contract.
  • Inverter generation, string values and alarms are not point-of-connection import or export measurements. No register address, Edge template or write function is approved by this guide.

Assessment

MID 33, 36, 40 and 50KTL3-X2 in current English datasheet, plus older documented 30KTL3-X2-1 with regional qualification. No direct Edge point or write contract is established.

InteroperabilityLimited
A dedicated monitoring RS485 pair is documented, but no exact third-party register contract is retained.4
AccuracyNot yet assessed
Readable points, scaling, units and unavailable-value behaviour require the installed firmware's point map.4
SecurityNot yet assessed
The retained sources do not define third-party authentication, encryption or read-only privilege separation.4
ReliabilityLimited
Electrical and monitoring hardware limits are documented, while third-party client coexistence and stale-data handling need a site test.24
RuggednessSupported with conditions
The current datasheet publishes IP66 and operating-temperature limits; installation must meet those limits.2
ScalabilityLimited
Growatt names single- and multiple-inverter monitoring accessories, but does not guarantee third-party polling capacity.2
LifecycleSupported with conditions
Official X2 documents exist, but the 30 kW document vintage and installed firmware need confirmation.234

Setup

  1. Record the exact X2 nameplate

    Capture the full model code including the 30KTL3-X2-1 suffix if present, country grid setting, serial number and firmware. Do not import assumptions from MID X, X3, XH or XL2.

  2. Map the existing monitoring equipment

    Trace the manual's RS485 monitoring pair, separate anti-backflow meter pair and any USB logger. Identify whether a Shine, ShineMaster or SEM controller already owns a link.

  3. Obtain the missing point map

    Require Growatt's exact model- and firmware-matched third-party protocol, client role, baud and address setup, functions, register convention, data types, scaling, invalid values and coexistence limits before any reading trial.

  4. Keep power control separate

    The manual's export limitation, CT or meter and DRM/ripple inputs are part of the commissioned plant design. Do not attach a control client or propose active/reactive power writes from this guide.

Common questions

Is MID 30KTL3-X2-1 in the current English datasheet?
No. The May 2026 English table starts at 33 kW. Growatt's earlier regional datasheet and 2023 manual include the 30KTL3-X2-1, so verify current regional availability and project approval for that exact model.234
Can the meter RS485 pair be used as an Edge monitoring port?
The manual assigns that pair to the anti-backflow meter. Do not repurpose it. The distinct inverter-monitoring pair still requires a firmware-matched protocol and commissioned access plan before any third-party read.4
Does Shine or SEM monitoring prove direct Edge control?
No. Growatt's accessory and cloud monitoring paths are separate systems. Their presence does not establish an Edge register map or write permission for export, grid or reactive-power settings.24
Can the X3 or XH guide supply an X2 point map?
No. Similar MID model names cover different equipment generations and purposes. Select documents by the exact X2 nameplate and firmware.14

Sources

  1. MID 30-50KTL3-X2 product page (opens in a new tab) Growatt
  2. MID 33-50KTL3-X2 English datasheet, May 2026 update (opens in a new tab) (PDF) Growatt
  3. MID 30-50KTL3-X2 regional datasheet (opens in a new tab) (PDF) Growatt
  4. MID 33-50KTL3-X2 installation and operation manual, GR-UM-247-A-01 (opens in a new tab) (PDF) Growatt

Further reading

Product names and trademarks belong to their owners. Publication does not imply endorsement or a commercial relationship.