F&F 3-phase energy consumption meter LE-03
- F&F 3-phase energy consumption meter LE-03
Energy consumption meter 3-phase LE-03 F&F
Product description
Three-phase.
LE-03 is a static (electronic) calibrated indicator of three-phase AC power consumption in direct circuit.
Operation
A special electronic circuit under the influence of the flowing current and applied voltage in each phase generates pulses in an amount proportional to the consumed electricity in that phase. Energy consumption in a phase is indicated by flashing of the corresponding LED (L1, L2, L3). The sum of the pulses from the three phases signaled by the blinking of the LED (800 imp/kWh) is converted into energy consumed in the entire three-phase system, and its value is indicated by the mechanical drum counter.
The last red digit on the drum counter indicates a row of 1/10 KWh (100 Wh).
Note:
The meter has a pulse output SO+ - SO-. This allows you to connect another pulse reading (SO) device to the pulses generated by the meter.
It is not required to connect an additional device for proper operation of the meter.
The meter has the ability to seal the covers of the input and output terminals to prevent making a bypass of the meter.
Technical data:
| Type | three-phase |
| Communication protocol | none |
| Compatibility | IEC61036 |
| Reference voltage | 3×400 V+N |
| Base current | 10 A |
| Maximum current | 100 A |
| Minimum measured current | 0,04 A |
| Accuracy of measurement according to IEC61036 | class 1 |
| Self-consumption of the meter | 10 VA; 2 W |
| Counter display range | 0÷99999.9 kWh |
| Meter constant | (1.25 Wh/imp) 800 imp/kWh |
| Readout signaling | LED red |
| Pulse output SO+ SO- | open collector |
| Connection voltage SO+ SO- | max. 30 V DC |
| Connection current SO+ SO- | max. 27 mA |
| Pulse time SO+ SO- | 34÷80 ms |
| Accuracy class | 1 |
| Current consumption signaling | 3×LED red |
| Connection | screw terminals 25 mm² |
| Working temperature | -20÷50°C |
| Dimensions | 7 modules (122 mm) |
| Mounting | on a 35 mm rail |
| Protection degree | IP20 |