AEG interface relay for photovoltaic 24 Vdc 230 Vac NA003
AEG NA003
9008662017184
AEG interface relay for photovoltaic systems according to CEI 0-21 with the following characteristics:
- Supply voltage: 110-230Vac or 24Vdc
- Measurement voltage: 230/400 Vac
- Insulation voltage: 4kV
- Power dissipation: 4W
- Output contacts: 250Vac 5A
- Input range: 24Vdc/5mA
- Degree of protection: IP40
€538.11
Items Available: 15
: 3
The NA003 Interface Relay complies with CEI 0-21 standard for the connection of LV generation plants, and is mandatory for plants with power greater than 11.08 kW.
The Interface Relay for photovoltaic applications performs permanent control of the grid voltage and frequency, intervening in case of grid malfunction. Relay NA003 is Modular and is suitable for connection on three-phase, three-phase + N 400V and also single-phase 230V systems, with both 230Vac and 24Vdc auxiliary supply voltage.
The trip function is realized by a potential-free contact that is normally connected to a contactor or a minimum voltage coil. The relay also performs the status check of the interface device (contactor or switch) and operates the second output contact for the back-up opening.
Programming the interface relay for photovoltaic applications is easy via the display on the front of the device. The relays still exit with factory programming according to IEC 0-21 thresholds.
Functions of the interface relay for photovoltaic applications:
- Frequency control in phase L1
- Three-phase (with no neutral) or single-phase voltage check
- Moving average voltage check over the 10 minutes
- Nonvolatile memory for fault storage
- Password protection
- Selectable for transient mode operation (default operation) and final mode selectable through display parameters
General features:
- Simplified commissioning by predefined configurations per local standards and directives, with largely configurable parameters
- Wide ranges of rated voltages and frequencies, configurable rated voltage
- Additional Open Setup allowing virtually unlimited free parameterization on site
- Safety against single errors
- Cyclic self-testing
- Surveillance of connected coupling switches
- Remote opening
- Separate network detection (RoCoF, PShift, external conductor voltage)
- Ability to update software on site
- Possibility of adding a communication interface
- Test function with opening time detection
- Single-phase and three-phase network surveillance for low- and medium-voltage networks
- Error memory with hourly marking (50 items)
- Password protection and plugging capability
- Random opening thresholds and insertion times for non-adjustable power generators (e.g., block-type thermal power plants)
Power supply circuit:
- Terminals: A1 (L or +) - A2 (N or -)
- DC supply voltage: 24 V - AC: 110 - 230 V
- Supply voltage tolerance: DC: ± 10% - AC: ± 30%
- Nominal consumption max. 1.25 W / 4 VA @ 230 V AC
- Rated frequency: 50 / 60 Hz
- Nominal frequency tolerance: 48 - 63 Hz
- Standby return time: 6 seconds + set switch-on delay
- De-energizing voltage: 7 V
- Overvoltage category: III
- Rated impulse voltage: 6 kV
Output circuit:
- Terminals: 11-12-14 - 21-22-24 - 31-32-34
- Quantity and type of contacts: 3 switching contacts
- Contact material: AgNi
- Capacity: 5 A/250 V AC
- Overvoltage category: III
- Rated impulse voltage: 4 kV
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Data sheet
- Type: Protection relay
