| Dimension: customized | custom processing: Yes | Measuring range: 0-9999 |
| Model NO.: LH-3AV73 | accuracy class: 0.5 | Installation: embedded |
| Usage: high precision measurement of three phase AC ampere | Auxiliary power supply: DC 80V-270V, DC48V, DC24V, AC220V |
| Perfomance Characteristics |
| High precision measurement measurement of three phase AC current |
| Provide the digital tube display, local data query |
| Programmable voltage ratio |
| Support for RS-485 communication, Modubus-RTU protocol |
| Support for switching input, output, analog quantity transmitting output |
| Auxiliary power supply: AC/DC 80V~270V, AC220V, AC380V, AC100V, DC48V, DC 24V |
| A variety of shapes, to meet the different requirements of the cabinet body electric circuit |
| Technical Index |
| Accuracy of measurement | Electric current 0.5 |
| Singal input | Connection mode of three phase four wire, three phase three line |
| Rated current of AC 1A, AC 5A |
| Over load 1.2 times ( Continued ), 2 times / second ( instantaneous ) |
| Power consumption < 0.4VA/phase |
| Impedance < 20mΩ |
| The frequency of 45~65Hz |
| Auxiliary power supply | AC/DC 80V~270V, AC220V, AC380V, AC100V |
| Power consumption < 4VA |
| Function module | Communication interface 1 way RS-485 communication, Modbus-RTU protocol |
| Baud rate: 1200~9600bps, the default 2400bps |
| Switch input support 4 stem node input |
| The switch output support 3 relay output, capacity: AC 250V/5A, DC 30V/5A |
| Transmission output support 3 analog output: 0/4~20mA or 0~5/10V |
| Environment | Working temperature: -10° C ~+55° C |
| Storage temperature: -25° C ~+70° C |
| Relative humidity is less than 93%, no corrosive gas |
| Elevation≤ 2500m |
| Safety | Insulation resistance > 100MΩ |
| AC withstand voltage AC 2KV |
| Electromagnetic compatibility | ESD level 4 |
| Electrical fast transient burst level 4 |
| Selcction of Specification |
| Digital Three phase AC Current Meter(9999 display programmable) |
| Model NO. | Display | Frame size(mm) | Hole size(mm) | Remark |
| LH-3AA1Y | LCD | 160*80 | 152*76 | * |
| LH-3AA2Y | LCD | 120*120 | 111*111 | * |
| LH-3AA3Y | LCD | 96*96 | 92*92 | * |
| LH-3AA4Y | LCD | 120*60 | 114*56 | * |
| LH-3AA5Y | LCD | 96*48 | 92*45 | * |
| LH-3AA6Y | LCD | 72*72 | 68*68 | * |
| LH-3AA7Y | LCD | 80*80 | 76*76 | * |
| Extended Modules: |
| AC/DC power supply(switching power supply)$4 |
| Modbus-RTU RS485 comm: $5 |
| AO: $7 more for each stem node |
| DI: $4 more for each stem node |
| DO: $4 more for each stem node |
| " *" means unconventional products of our corporation |
| Order notes: Please write clearly the requested types, input signal and the functional modules, etc when purchasing. |
| Others: Factory default settings (Use default setting if no instruction). |
