Phoenix SCK-M-I-4S-20A-PV string monitoring module 2903242,SCK measurement module, used to monitor photovoltaic systems, 4 x current measurement (up to 20 A),1 x digital input, interface to SCK communication module
| Product Type | Current transmitter |
| Product Series | SOLARCHECK |
| insulation characteristics | |
| pollution level | 2 |
| protection circuit | surge protection; 33V suppressor diode |
| Power | |
| Supply Voltage Range | via SOLARCHECK communication module |
| current self-loss | 43 mA (typical) |
| 50 mA (max) | |
| signal: digital | |
| Input Description | Digital Input |
| valid input source | Floating switch contact |
| Cable Length | ≤ 30 m |
| measurement | |
| Input Number | 4 |
| Input current range | 0 A DC ... 20 A DC (UL: 0 A DC...25 A DC) |
| Reverse current detection | -1 A DC ... 0 mA |
| LSB: Current | 20 mA |
| Overload | 5 x IN |
| temperature coefficient, typical | 0.02 %/K (TK20) |
| Maximum transmission error | ± 1% (from end of set range) |
| Connection Mode | screw connection |
| Rigid conductor cross section | 0.2 mm² ... 2.5 mm² |
| Flexible Wire Cross Section | 0.2 mm² ... 2.5 mm² |
| Attachable Guide Cross Section AWG | 24 ... 12 |
| Tightening torque | 0.5 Nm ... 0.6 Nm |
| data: SCK-C-MODBUS data interface | |
| Transmission Length | ≤ 300 m (0.14 mm²) |
| ≤ 500 m (1.5 mm²) | |
| Supported Protocols | patent |
| Product Size | |
| width | 22.5mm |
| height | 102mm |
| depth | 128.5mm |
| Round wire | |
| diameter | 9.5mm |
| environmental conditions | |
| protection level | IP20 |
| ambient temperature (operation) | -20°C ... 70°C |
| ambient temperature (storage/transport) | -40°C ... 85°C |
| elevation | ≤ 2000 m |
| Allowable humidity (operating) | ≤ 95% (non-condensing) |
Phoenix SCK-M-I-4S-20A-PV string monitoring module 2903242
