Deye SUN-SMART-CT02 (variants -W, -L, -WL) - 'Deye Wireless CT 02'
Official manufacturer EU verified Sept. 2, 2026
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Identity
| brand | Deye |
| category | smart_meters |
| ean | UNKNOWN |
| manufacturer | Deye (Ningbo Deye Inverter Technology Co., Ltd.) |
| market_version | EU (LoRa 863-870 MHz on -L/-WL) |
| model | SUN-SMART-CT02 (variants -W, -L, -WL) - 'Deye Wireless CT 02' |
| mpn | UNKNOWN |
| product_family | Deye Wireless CT 02 / SUN-SMART-CT02 |
| product_status | active |
| region | EU |
| sku | UNKNOWN |
| variant_map | SUN-SMART-CT02 = RS485 only; -W = Wi-Fi + RS485; -L = LoRa + RS485; -WL = LoRa + RS485 + Wi-Fi. Electrically identical - one record per protocol rule 8. |
Electrical
| ct_ratio |
configurable 100:1 to 5000:1 in 100-unit steps (manual, 'CT Ratio set'); meter CT secondary input 50 mA or 5 A
Wireless CT 02 product page (HTML technical specification table) — row 'CT(Rated Secondary Output) | 50mA/5A'; ratio range from manual 'CT Ratio set' 100:1-5000:1
|
| export_limitation_support | YES - datasheet: 'Single CT per inverter system for synchronized zero-export control' |
| max_current_a | determined by the external CT, not by the meter. Meter secondary input rating: 50 mA or 5 A ('CT (Rated Secondary Output) | 50mA/5A'). CT ratio is a settable parameter, 100:1 to 5000:1 in steps of 100 (manual). |
| measurement_type | CT-based (bidirectional metering) |
| modbus_rtu |
YES - RS485, default Modbus address 0x01 (range 0x01-0xFF), default baud 9600 (1200/2400/4800/9600/14400/19200/38400 selectable)
Manual SUN-SMART-CT02 — manual: default Modbus address 0x01, default baud 9600
|
| modbus_tcp | False |
| phase_type | L1/N (single phase), L1/L2/L3/N (three phase) on all variants; L1/L2/N (split phase) additionally on the base SUN-SMART-CT02 per the product page table |
| rs485 | True |
| supported_inverter_brands_models | Deye hybrid inverters. The datasheet describes 'Single CT per inverter system for synchronized zero-export control'. Neither the datasheet nor the manual names an individual Deye inverter model, so no inverter_ct_matrix row can be built from these two documents alone. |
Physical / mechanical
| depth_mm | 64 |
| din_rail_type | 35 mm DIN rail ('Pull out the clip, mount the smart meter onto the DIN rail, then push the clip back') |
| enclosure_material | UNKNOWN |
| height_mm | 94 |
| housing_color | UNKNOWN |
| mounting_type | ['DIN-rail'] |
| note | Manual gives '94mm x 36mm x 64mm x 35mm' (the fourth figure is the DIN-rail depth/clip dimension); product page 'Size | 36x94x64mm' |
| weight_kg | 0.12 |
| width_mm |
36
Wireless CT 02 product page (HTML technical specification table) — row 'Size | 36x94x64mm'
|
Installation
| ct_count | single-phase: 1 CT; split-phase three-wire: 2 CTs (L1, L2); three-phase four-wire: 3 CTs (L1, L2, L3) |
| ct_orientation |
manual: 'The CT arrow should point toward the inverter from the grid'
Manual SUN-SMART-CT02 — manual: 'The CT arrow should point toward the inverter from the grid'
|
| indoor_outdoor | indoor, inside a distribution board (IP20) |
| max_installation_altitude_m | 3000 |
| terminal_wire_gauge | 1.5-6 mm2 |
Environment
| cooling_method | natural convection |
| ip_rating | IP20 |
| max_altitude_m | 3000 |
| operating_temperature_c | -40 to +60 |
| relative_humidity | 0-75% |
Interfaces & connectors
| cloud_api | via Deye Cloud through the paired inverter / Smart TX |
| ethernet | False |
| local_api | UNKNOWN |
| lora | on -L and -WL: 863-870 MHz, external antenna, 0.79 dBi @868 MHz, ~200 m barrier-free |
| modbus_rtu | YES |
| modbus_tcp | False |
| protocol_notes | LoRa variants pair with the Deye Smart Transmitter (SUN-SMART-TX01/TXU1), which supports 2 CTs. |
| rs485 | YES (RJ45 port; RS485-A/B + COM-GND pinout defined in the manual) |
| wifi | on -W and -WL: 2412-2484 MHz, external antenna |
Controls & display
| display_data | Voltage, Current, Active power, Reactive power, Frequency, Power Factor, Energy |
| display_type | LCD |
| local_display | True |
Protection
| ac_voltage_withstand | 4 kV / 1 min |
Certifications
| emc | [] |
| grid_codes | [] |
| other | [] |
| regional | ['CE'] |
| safety | ['IEC/EN 61010-1'] |
Warranty & service
| conditions | product page row 'Warranty | 5 Years' |
| standard_years | 5 |
Documents
Additional documented parameters
Recorded verbatim from the source; no schema field exists for these yet.
| AC voltage withstand | 4KV/1min |
| Accuracy | Voltage +/-0.1V; Current +/-0.01A; Frequency +/-0.01Hz; Power +/-1W |
| Lora Antenna Gain | 0.79dBi@868MHz |
| Operation Voltage | 85~300V a.c.(L-N) |
| Self Consumption Power | <=2W |