NEMO-NETZSCH Nemo 96HD/HD+/HDLe

The IME Nemo 96HD, 96HD+, and 96HDLe are high-performance, flush-mounting multifunction power meters (96x96mm) designed for electrical parameter measurement and power quality analysis in low and medium voltage systems.

Technical Specifications

General Characteristics

Form Factor: Panel mount 96x96 mm (Cutout: 92x92 mm).
Display Type: Backlit LCD with adjustable contrast.
Accuracy Class: Class 0.5S for Active Energy (IEC 62053-22), Class 1 for Reactive Energy (IEC 62053-23).
Connection Types: Single-phase, 3-phase 3-wire, or 3-phase 4-wire balanced/unbalanced networks.
Frequency Range: 45 Hz to 65 Hz.

Voltage Inputs

Nemo 96HD / 96HDLe: 80 V to 500 Vac phase-to-phase (50 V to 290 Vac phase-to-neutral).
Nemo 96HD+: 80 V to 690 Vac phase-to-phase (50 V to 400 Vac phase-to-neutral).
Voltage Transformer (VT) Ratio: Programmable from 1 to 1500 (depending on specific model variant).

Current Inputs

Nominal Current (In): 1 A or 5 A (from external current transformers).
Maximum Current (Imax): 1.2 x In continuous.
Current Transformer (CT) Ratio: Programmable from 1 to 9999.
Rogowski Option: Available as dedicated kits for flexible current sensors.

Measured Parameters

Basic Parameters: Voltage (Phase-Phase, Phase-Neutral), Current, Frequency.
Power Parameters: Active, Reactive, and Apparent Power (per phase and total).
Power Factor: Displacement Power Factor (\(\cos \phi\)) and Total Power Factor (PF).
Energy Counters: Bidirectional (4 quadrants) Active Energy (kWh) and Reactive Energy (kVARh).
Demand Values: Max/Min demand for current, voltage, and power parameters.

Power Quality Analysis

Nemo 96HD: Total Harmonic Distortion (THD) for Voltage and Current up to the 22nd harmonic.
Nemo 96HD+: Individual Harmonic Analysis for Voltage and Current up to the 50th harmonic.
Nemo 96HDLe: Basic Total Harmonic Distortion (THD V/I) monitoring.

Auxiliary Power Supply

Standard AC/DC Option: 80 V to 265 Vac / 100 V to 300 Vdc.
Low Voltage Option: 11 V to 60 Vdc.

Expandability & Communication

Nemo 96HD / 96HD+: Modular slots accept up to 4 plug-in modules.
Nemo 96HDLe: Features built-in RS485 Modbus RTU and 1 Pulse output (accepts only 1 extra module).
Available Modules: RS485 Modbus, Ethernet TCP/IP, Profibus, BACnet, LonWorks, M-Bus, 2 Relay Outputs, 2 Pulse Outputs, 2 Analog Outputs (4-20mA), and On-board Memory.