OTUS 1 / OTUS 3 — direct-connected smart electricity meters for AMI systems
Country: Poland · Model: OTUS 1 / OTUS 3
OTUS 1 (single-phase) and OTUS 3 (three-phase) are multifunction direct-connected smart electricity meters for smart metering AMI systems. The single-phase one is rated for 230 V and Imax 40 A, the three-phase for 3×230/400 V and Imax 80 A. The meters measure active energy in both directions, so they also suit consumers with their own generation.
- OTUS 1
- 1 phase, 230 V, Iref 5 A, Imax 40 A, 5 000 imp/kWh
- OTUS 3
- 3×230/400 V, Iref 5 A, Imax 80 A, 2 500 imp/kWh
- Accuracy class
- active B (EN 50470-3), reactive 2 (EN 62053-23)
- Measurement
- bidirectional active, 4-quadrant reactive, 4 tariff zones, 15 min profiles (OTUS 3: 1–60 min)
Technical specifications
| OTUS 1 | 1 phase, 230 V, Iref 5 A, Imax 40 A, 5 000 imp/kWh |
|---|---|
| OTUS 3 | 3×230/400 V, Iref 5 A, Imax 80 A, 2 500 imp/kWh |
| Accuracy class | active B (EN 50470-3), reactive 2 (EN 62053-23) |
| Measurement | bidirectional active, 4-quadrant reactive, 4 tariff zones, 15 min profiles (OTUS 3: 1–60 min) |
| Communication | built-in PLC; replaceable 2G/3G/LTE/NB-IoT modules; optical port; RS-485 option; DLMS/COSEM with encryption |
| Relay | built-in disconnect/reconnect contactor |
| Insulation | 4 kV 50 Hz, 6 kV 1.2/50 µs |
| Conditions | −40…+70 °C, IP54, protection class II |
| Standards | PN-EN 50470-1, -3; MID; DLMS certificate |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
Reactive energy is measured in four quadrants, metering runs in 4 tariff zones, and voltage, current, instantaneous and maximum power and neutral conductor current with current balancing are also measured. Data is recorded in a 15-minute load profile (in the OTUS 3 the interval is from 1 to 60 min), a 10-minute voltage and current profile, a daily profile and monthly periods. The built-in contactor disconnects and reconnects the circuit remotely, and the power limiter works with local control or on DSM/DSR signals. Local communication runs through the optical port per PN-EN 62056-21 with DLMS/COSEM, remote communication through the built-in PLC or a replaceable 2G/3G/LTE/NB-IoT module, optionally through RS-485. For the OTUS 1 Iref is 5 A and the constant 5 000 imp/kWh, for the OTUS 3 Iref 5 A and 2 500 imp/kWh at 50 Hz. The accuracy class is B for active energy per EN 50470-3 and 2 for reactive per EN 62053-23, insulation 4 kV (50 Hz) and 6 kV (1.2/50 µs impulse), and the clock error is no worse than 0.5 s/day. Operating temperature is from −40 to +70 °C, protection class II, IP54, compliance with PN-EN 50470-1 and PN-EN 50470-3.
How to choose
The number of phases determines the model. The OTUS 1 is installed for single-phase consumers, the OTUS 3 for three-phase ones. Data exchange is protected by DLMS/COSEM authorization and encryption, and the non-metrological software can be replaced remotely. The replaceable communication module sits under the terminal cover.
Request a price and lead time
OTUS 1 / OTUS 3 — direct-connected smart electricity meters for AMI systems. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
How do OTUS 1 and OTUS 3 differ?
The OTUS 1 is single-phase, 230 V, Imax 40 A. The OTUS 3 is three-phase, 3×230/400 V, Imax 80 A.
Can the meter disconnect the load remotely?
Yes, the built-in contactor disconnects and reconnects the current circuit remotely.
What is the accuracy class of OTUS?
B for active energy per EN 50470-3, 2 for reactive energy per EN 62053-23.
What certificates does OTUS have?
EU type-examination certificates (MID) and DLMS.
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