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The Socomec DIRIS DigiBOX A40 (USDBPA40RS) is an enclosed single-point measurement unit that is easy to install and ensures the user has access to all the measurements required for successfully carrying out energy efficiency projects and ensuring the electrical distribution is monitored.
Electrical characteristics
| Auxiliary power supply | |
| Alternative voltage | 110/400 VAC or 120/300 VDC - Cat III |
| Frequency | 50/60 Hz |
| Power consumption | 5 VA AC / 1.5 VA DC (48250500) 8 VA AC / 2.5 VA DC (48250501 & 48250502) |
| Connection | Removable spring-cage terminal block, 2 x 2 positions, AWG 10 … 24 / 2.5 … 0.5 mm² solid cable or AWG 15 … 30 / 1.5 … 0.25 mm² stranded cable with ferrule |
Measurement characteristics
| Power and energy measurement | |
| Accuracy Active energy and active power | Class 0.2 for the DIRIS A-40 only Class 0.5 with TE, TF or iTR sensors Class 1 with TR sensors |
| Accuracy of reactive energy | Class 1 with TE, iTR or TF sensors |
| Power factor measurement | |
| Accuracy | Class 0.5 with TE, TF or iTR sensors Class 1 with TR sensors |
| Voltage measurement | |
| Characteristics of the network measured | 50-300VAC (Ph/N) - 87-520VAC (Ph/Ph) - CAT III |
| Frequency range | 45 to 65Hz |
| Frequency accuracy | Class 0.02 |
| Network type | Single-phase / Two-phase / Two-phase with neutral / Three-phase / Three-phase with neutral |
| Measurement by voltage transformer | Primary: 400 000 VAC Secondary: 60, 100, 110, 173, 190 VAC |
| Input consumption | ≤ 0.1 VA |
| Accuracy of voltage measurement | Class 0.2 |
| Connection | Removable spring-cage terminal block, 4 positions, AWG 10 … 24 / 0.5 … 2.5 mm² solid cable or AWG 15 … 30 / 0.25 … 1.5 mm² stranded cable with ferrule |
| Current measurement | |
| Number of current inputs | 3 |
| Associated current sensors | Solid TE, split-core TR/iTR, flexible TF current sensors |
| Accuracy | Class 0.2 DIRIS A-40 alone Class 0.5 with TE, TF or iTR sensors Class 1 with TR sensors |
| Connection | Specific Socomec cable with RJ12 connectors |
Input characteristics
| Number | 3 |
| Type / Power supply | Optocoupler with internal (12 VDC ± 10%) or external (12-24 VDC ± 20%) polarisation |
| Input function | Logical status, protective device monitoring, pulse metering of multifluid meters. |
| Connection | Removable screw terminal block, 5 positions, AWG 15 … 35 / 0.14 to 1.5 mm² stranded or solid cable |
Output characteristics
| Number | 2 |
| Type | Optocoupler 30 Vd.c. max 20mA max - SELV |
| Output function | Command, energy pulse output, load shedding, alarm |
| Connection | Removable screw terminal block, 4 positions, AWG 15 … 35 / 0.14 to 1.5 mm² stranded or solid cable |
Communication characteristics
| Ethernet RJ45 10/100 Mbs | Gateway function Modbus TCP BACnet IP SNMP v1, v2, v3 |
| RS485 2-3 wires | Modbus RTU communication function Profibus DPV1 communication interface |
| USB | Upgrade and configuration via type B micro USB connector |
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