Multifunction power metering Q52D3H

Description
Compact multifunction analyzer for use in three-phase (three- or four‑wire) unbalanced low-voltage (LV) systems. NANO H version incorporates THD reading and advanced measurements for more efficient monitoring and additional diagnostics of system operating status.

Functional features

• Measurements of main electrical quantities including bidirectional active and reactive energy counters
• THD (Total Harmonic Distortion) reading
• Versions with current transformer (CT/TA) input and versions with integrated miniature triple CT supplied as standard
• Direct-input CT versions available: 63A, 125A, 160A and 250A
• Reduced wiring cost and installation time thanks to the compact miniature triple CT
• Mounting compatible with modular breaker pitch for installations in confined spaces
• RS485 serial communication with Modbus RTU protocol as standard
• Output options: 1 or 2 programmable alarm outputs or, alternatively, pulse outputs for retransmission of active/reactive energies; possibility to connect Analog Output modules

Available documentation
Datasheet, User manual, Communication protocols (Modbus RTU), Options document and Technical drawing (PDF).

Characteristics / Technical specifications

• Type: Three-phase multifunction analyzer (NANO series, DIN-rail modules)
• Model: Q52D3H
• Voltages: for use in three-phase LV systems (three- or four‑wire)
• Current inputs: CT versions and integrated miniature triple CT versions 63A / 125A / 160A / 250A
• Energy measurements: bidirectional active and reactive energy
• Advanced measurements included: THD reading and additional advanced quantities for monitoring
• Communication: RS485 - Modbus RTU (standard)
• Outputs: 1 or 2 programmable alarm outputs or pulse outputs for energy retransmission; option to connect analog output modules
• Format: compact DIN-rail module (3 DIN modules)
• Accessories: miniature triple current transformer supplied with direct-input versions