APsystems QT2-208
Manufacturer documented NA перевірено 20 вересня 2026 р.
UNKNOWN
Identity
| category | microinverters |
| generation | QT2 |
| manufacturer | APsystems |
| market_version | North America 208 V 3-phase (delta/wye); sibling QT2-480 covers 480 V |
| model | QT2-208 |
| mpn | QT2-208 |
| product_family | QT2 3-Phase Quad Microinverter |
| product_status | active |
| region | — |
Electrical
| ac_coupling_compatibility | — |
| ac_rated_power_w | 1728 |
| grid_profiles | compatible with delta and wye 3-phase, 208V or 480V nominal |
| max_dc_input_power_w | UNKNOWN precise figure (implied by 4x20A inputs and module range) |
| max_dc_voltage_v | 60 |
| max_input_current_a | 20A x 4 inputs |
| max_short_circuit_current_a | 25A per input |
| monitoring_protocol | encrypted ZigBee to gateway |
| mppt_range_v | 30-45 (peak tracking); 26-60 (operating) |
| num_mppt |
2
APsystems QT2 Microinverter official product page (USA) — official product page: '4 DC inputs', 'dual MPPT'; datasheet wiring schematic: '4 modules, 2 MPPTs, module-level DC voltage'
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| supported_module_power_range_w | 315-670+ |
Physical / mechanical
| depth_mm | 46 |
| height_mm | 242 |
| mounting_bolt_size | hardware recommended by the module racking vendor (user manual p.10) |
| mounting_type | ['rooftop'] |
| shipping_weight_kg | — |
| terminal_locations | AC connector pin order left to right: PE N L3 L2 L1 (user manual p.12) |
| torque_specs |
grounding/clamp nut: 2.5 +/- 0.5 N.m (user manual p.12)
APsystems Microinverter QT2 for APAC - User manual — user manual p.12, 'tighten the nut, torque 2.5+/-0.5N.m'
|
| weight_kg |
6
Datasheet | QT2 3-Phase Microinverter (QT2-208) — MECHANICAL DATA, '13 lbs (6kg)'
|
| width_mm |
359
Datasheet | QT2 3-Phase Microinverter (QT2-208) — MECHANICAL DATA, 'Dimensions (W x H x D) 14" x 9.5" x 1.8" (359mm X 242mm X 46mm)'
|
Installation
| clearance_bottom_mm | 15 |
| clearance_top_mm | 15 |
| direct_sunlight_restriction | Install the microinverters (including DC and AC connectors) under the PV modules to avoid direct exposure to rain, UV or other harmful weather events (user manual p.10-11) |
| indoor_outdoor | outdoor (Type 6 / IP67) |
| mounting_orientation | under the PV module, with DC connectors, antenna and LED indicator facing outwards |
| orientation_allowed | ['under-module, DC connectors/antenna/LED facing outward'] |
| ventilation_requirements |
Allow a minimum of 1.5 cm (3/4 in) below and above the casing of the microinverter for air flow (user manual p.10)
APsystems Microinverter QT2 for APAC - User manual — user manual p.10
|
Environment
| cooling_method | natural convection - no fans |
| ip_rating | IP67 |
| nema_rating | Type 6 |
| operating_temperature_c | -40 to +65 (-40 degF to +149 degF) |
| storage_temperature_c | -40 to +85 (-40 degF to +185 degF) |
Interfaces & connectors
| ac_terminal_type | APsystems AC Bus cable, 2.5 mm2 (23 A) or 4 mm2 (30 A); T-CONN connector |
| cloud_api | APsystems EMA (Energy Management Analysis) system |
| ethernet | False |
| protocol_notes | Microinverter-to-gateway link is encrypted ZigBee; an ECU is required for monitoring and for grid-parameter configuration. |
| pv_connector_type |
Staubli MC4 PV-ADBP4-S2 & ADSP4-S2
Datasheet | QT2 3-Phase Microinverter (QT2-208) — MECHANICAL DATA, 'DC Connector Type: Staubli MC4 PV-ADBP4-S2&ADSP4-S2'
|
| rs485 | False |
| wifi | False |
| zigbee | encrypted ZigBee to the APsystems ECU |
Controls & display
| display_type | — |
| leds |
Ten short green blinks at DC power-up = successful startup. Flashing slow green (5 s gap) = producing power and communicating with ECU; flashing slow red (5 s) = not producing power; flashing fast green (2 s) = no ECU communication >60 min but still producing; flashing fast red (2 s) = no ECU communication >60 min and not producing; steady red = DC-side ground-fault protection (user manual p.17)
APsystems Microinverter QT2 for APAC - User manual — user manual p.17
|
| local_display | False |
| mobile_app | APsystems EMA App |
Protection
| anti_islanding | active anti-islanding protection (IEEE 1547) |
| ground_fault_protection | integral ground-fault detector / interrupter (GFDI) |
| integrated_breakers_fuses | integrated safety protection relay |
| over_temperature | — |
Certifications
| emc | ['FCC Part15B'] |
| grid_codes | ['IEEE1547', 'CA Rule 21'] |
| other | ['NEC 2023 690.12 rapid shutdown compliant (APsystems series datasheet certification block)'] |
| regional | [] |
| safety | ['UL1741', 'CSA C22.2 No.107.1-16'] |
Warranty & service
| conditions | Datasheet FEATURES row: '12 Years Standard ; 25 Years Optional' |
| extended_options_years | [25] |
| standard_years |
12
Datasheet | QT2 3-Phase Microinverter (QT2-208) — FEATURES, 'Warranty 12 Years Standard ; 25 Years Optional'
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Документи
Додаткові задокументовані параметри
Записано дослівно з джерела; поля схеми для них поки немає.
| AC Bus Cable | 10AWG |
| Efficiency / Mechanical | Peak Efficiency 96.5%; CEC Efficiency 96%; Night Power Consumption 80mW; DC Connector Staubli MC4 PV-ADBP4-S2 & ADSP4-S2 |
| Input Data (DC), row 'Operating Voltage Range' | 26V-60V |
| Input Data (DC), row 'Recommended PV Module Power (STC) Range' | 315Wp-670Wp+ |
| Isolation Design | High Frequency Transformers, Galvanically Isolated |
| Maximum Output Fault Current (ac) And Duration | L-L:85.4Apk, 13.6ms, 4.967Arms |
| Maximum Units per 30A branch | 5 |
| Night Power Consumption | 80mW |
| Nominal Output Current | 4.8A x 3 |
| Nominal Output Frequency/Range | 60Hz/58.8Hz-61.2Hz |
| Peak Efficiency / CEC Efficiency / Nominal MPPT Efficiency | 96.5% / 96% / 99.5% |
| Peak Power Tracking Voltage / Operating Voltage Range | 30V-45V / 26V-60V |
| usa.apsystems.com/qt2/ | QT2 208V: 1728W output; QT2 480V: 1800W output; 4 DC inputs per unit; Dual MPPT architecture; Native 3-phase (L1, L2, L3); compatible with delta and Y grids; Peak efficiency 96.5%; CA Rule 21 (UL 1741 SB) compliant; Encrypted ZigBee; module-level DC voltage monitoring |