The NIK 2308 is a multifunctional three-phase smart energy meter, designed for both direct and transformer connections. It supports wide voltage input ranges and features dual communication interfaces, including GPRS/LTE and RS-485, with an option for Ethernet or PLC. Built to ensure high reliability and flexibility, the device includes a Last GASP feature for sending critical alerts during power failures. With its DLMS protocol support, high accuracy class (0.5s), and robust tamper protection, NIK 2308 is ideally suited for AMI systems, smart grid infrastructure, and high-load industrial applications. Optional features like dual battery operation, external power input, and DIN rail mounting further enhance its adaptability.
Specifications
Accuracy class (active energy): EN 50470-1 B / EN 50470-3 / 0.5s (transformer connection)
Accuracy class (reactive energy): IEC 62053-23 Class 2
Nominal voltage:
3×230/400 V
3×240/416 V
3×57.7/100 V (for transformer connection)
Wide range: 3×57.7/100 V to 3×240/416 V
Operation voltage range: -20% to +15%
Nominal frequency: 50 Hz
Nominal current: 5 A
Maximum current: 10 A / 80 A / 120 A
Meter constant: 8000 imp/(kWh) and 8000 imp/(kVArh)
Starting current (active energy): 12.5 mA (direct), 10 mA (5 mA) transformer
Starting current (reactive energy): 15.6 mA (direct), 15.0 mA (9.3 mA) transformer
Power consumption:
Voltage circuit (no PLC): 10 VA (2 W)
Voltage circuit (with PLC): 20 VA (5 W)
Current circuit: 0.05 VA
Protection level: IP54
Operating temperature: -40°C to +70°C
LCD display: 6 + 3 digits
Weight: ≤ 2.3 kg
Service life: 24 years
Features
Measurement with accuracy class 0.5s for transformer connection
Two communication interfaces (GPRS/LTE, RS-485)
Last GASP feature for power loss alerts via 4G/LTE
Active and reactive energy metering
Tamper sensors for terminal cover and case
Voltage quality control and harmonic monitoring
Optical port for local communication
Encrypted data transfer
Modern DLMS protocol support
Battery-powered mode (optional dual batteries)
Optional DIN rail mounting
Wide operating voltage range for flexible deployment
Transparent or opaque casing options
Compatible with NIK AMI and other modular accessories
Applications
Commercial and industrial energy billing
AMI infrastructure and smart grid systems
Transformer-based energy metering
Multi-tariff utility billing systems
Critical infrastructure monitoring with backup alerting
About the Manufacturer
NIK is one of the largest energy technology enterprises in Eastern Europe, established in 1997. The company specializes in the design and production of advanced metering systems, industrial controllers, and integrated AMI solutions. With an in-house engineering and R&D department, NIK delivers innovative energy management tools for utilities, businesses, and infrastructure projects.
