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The LC-305 is a 5-channel AC Load Current Measurement Module. LC-305 is fully RoHS-compliant and has qualification for 4 kV ESD protection and 2000 VDC intra-module isolation is also provided. When required, communication with the LC-305 is programmable based on the Modbus RTU protocol, and an added benefit is that different addresses can be set via hardware configuration. The module can measure the load current of each lamp to verify if the lamp is normal or failed; check if the bulb begins to fade and needs to be replaced; and see if there is carbon-buildup depositing on the relay contacts which may makes the relay become sticky.
| EMS Protection | |
|---|---|
| EFT (IEC 61000-4-4) | ±4 kV for power and communication |
| ESD (IEC 61000-4-2) | ±4 kV contact for each terminal |
| LED Indicators | |
|---|---|
| Status | 1 LED as Power Indicator |
| AC Current Input | |
|---|---|
| Channels | 5 |
| Wiring | Single ended |
| Accuracy | 3% of FSR |
| Frequency | 50/60 Hz |
| Current | 0 ~ 5 A |
| Max. Load Current | 10 A/Module COM point Max. Single Load Current 5 A at 25°C |
| Data Update Rate | 1 Second |
| COM Ports | |
|---|---|
| Ports | 1 x RS-485 |
| Baud Rate | 1200 ~ 115200 bps |
| Data Format | (N, 8, 1), (N, 8, 2), (E, 8, 1), (O, 8, 1) |
| Protocol | Modbus RTU or DCON |
| Power | |
|---|---|
| Reverse Polarity Protection | Yes |
| Input Range | 10 ~ 30 VDC |
| Consumption | 0.7 W Max. |
| Mechanical | |
|---|---|
| Dimensions (mm) | 70 x 83 x 29 (W x L x H) |
| Installation | Screw Mounting/DIN Rail mount |
| Environment | |
|---|---|
| Operating Temperature | -25 ~ +75°C |
| Storage Temperature | -30 ~ +80°C |
| Humidity | 10 ~ 95% RH, Non-condensing |
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