Allnet ALL369X A250

Allnet ALL369X A250

The Allnet ALL369X A250 is a high‑performance, digital energy meter designed for industrial and commercial applications that require accurate measurement of electrical parameters up to 200 A. Built on the latest power‑metering technology, it delivers reliable data collection, advanced diagnostics, and seamless integration with modern building management systems.

Key Features

• Maximum Current Rating: 200 A – suitable for heavy‑load circuits.
• Voltage Range: 0–480 V AC, ensuring compatibility with a wide variety of power supplies.
• Accuracy Class: ±1.0 % (Class 1) – providing precise readings for critical monitoring tasks.
• Measurement Parameters: Voltage, current, active power, reactive power, apparent power, power factor, frequency, and energy consumption (kWh).
• Display: 7‑digit LCD with backlight; programmable display modes for quick data access.
• Communication Interfaces: RS‑485 Modbus RTU, Ethernet (optional), and USB – enabling flexible network integration.
• Data Logging: Internal memory stores up to 1 000 000 samples; configurable sampling intervals from 1 s to 60 min.
• Alarm Functions: Over‑current, over‑voltage, under‑voltage, frequency deviation, and power factor thresholds with audible/visual alerts.
• Environmental Rating: Operating temperature –10 °C to +50 °C; IP20 enclosure for indoor use.
• Power Supply: 24 V DC input (±5 %) or 48 V DC via optional power module.

Design and Build Quality

The meter features a robust metal housing that protects internal components from dust, vibration, and accidental impact. The front panel is equipped with a rotary encoder for easy navigation through menus and settings. All buttons are recessed to prevent inadvertent activation during operation.

Installation and Wiring

The Allnet ALL369X A250 employs a pair of high‑current inductive clamps (induction terminals) that clamp around the conductors without cutting or splicing. This non‑intrusive method ensures minimal disruption to existing wiring and eliminates the risk of loose connections.

1. Select appropriate clamp size: For 200 A circuits, use the A250 clamp set.
2. Secure clamps around conductors: Ensure a snug fit; the clamps should not touch each other or any metallic surfaces.
3. Connect clamp leads to meter terminals: Use supplied insulated cables with proper gauge (typically 4 AWG).
4. Verify polarity: Follow the meter’s wiring diagram to maintain correct phase orientation.
5. Mount the meter: Install in a dry, ventilated location within the control panel or distribution board.

Software and Configuration

The meter can be configured via its built‑in menu system or through external software using Modbus RTU. Key configuration options include:

• Sampling Rate: Set to match the monitoring frequency required.
• Alarm Thresholds: Define custom limits for each parameter.
• Unit Conversion: Choose between SI units or local standards.
• Data Export: Retrieve logged data via USB or Modbus and import into SCADA, ERP, or energy‑management platforms.

Applications

The versatility of the Allnet ALL369X A250 makes it ideal for:

• Industrial process control where accurate power measurement is critical.
• Commercial buildings requiring detailed energy consumption analytics.
• Renewable energy installations (solar, wind) to monitor feed‑in and load characteristics.
• Utility metering upgrades where non‑intrusive installation is preferred.

Compliance and Standards

The meter complies with international safety and performance standards, including IEC 61000-4-2 (electrostatic discharge), IEC 61000-4-3 (radiated immunity), and IEC 61000-4-5 (surge immunity). It also meets the requirements of the European Union’s Low Voltage Directive (LVD) and the International Electrotechnical Commission (IEC) standards for energy meters.

Technical Specifications Summary

Conclusion

The Allnet ALL369X A250 stands out as a reliable, accurate, and versatile energy meter for demanding electrical environments. Its non‑intrusive clamp installation, comprehensive measurement capabilities, and robust communication options make it an excellent choice for professionals seeking precise power monitoring without compromising safety or convenience.