CHINT DDSU666 1-Phase 2P RS485 Modbus Smart Power Meter

Name: CHINT DDSU666 1-Phase 2P RS485 Modbus Smart Power Meter
Brand: CHINT
SKU: 1769745063262298112

Dimensions:36mm width
Accuracy Class:1.0
Brand Name:Chint
Place of Origin:China
Output Voltage:3x 220/380V
Model Number:DDSU666
Display Type:Digital Only
Measuring Energy Range:5 (80)A
Phase:Single Phase

SKU: 1769745063262298112 Category: Others

Description

Chint DDSU666 1 Phase 2P 80A 60A 220V 230V RS485 MODBUS English version or Chinese CHNT Power Energy Single Phase Smart Meter

Chint DDSU666 Single-phase energy meter is designed to monitor power and to measure the energy in power systems. It belongs to a generation of programmable intelligent instruments, integrated with monitoring and communication functions. It is mainly thought to be used for real-time measurement and display for electrical parameters such as voltage, current, active power, reactive power, frequency, power factor.

Technical Datasheet & Downloads

📄 Technical Documentation & Product Specifications

Download official engineering datasheets, certified test standards (IEC / UL / CE), wiring diagrams, and dimensional drawings for CHINT DDSU666 1-Phase 2P RS485 Modbus Smart Power Meter.

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Official Technical Datasheet (PDF) Complete electrical ratings, tripping characteristics, dimensions, and compliance specifications.

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2D/3D CAD & Dimensional Drawings STEP, DXF, and PDF CAD drawing files for panel builders and switchgear designers.

Technical FAQ & Selection Guide

💡 Frequently Asked Technical Questions & Selection Guide

Pure engineering specifications, tripping curve parameters, and electrical selection guidance for panel builders and system designers.

Voltage & Load Sizing

How to verify rated operational voltage, frequency, and load duty cycle?

Verify that the nominal line voltage (AC 230V single-phase or 400V/415V/690V three-phase at 50/60Hz, or DC voltage ratings) falls within the continuous maximum operating limits of the device. Check duty cycle ratings (continuous vs intermittent duty) to ensure thermal stability under full load.

Protection & Environment

What ingress protection (IP Rating) and environmental enclosures are recommended?

For clean indoor electrical rooms, standard IP20 modular DIN-rail housings are recommended. For outdoor, industrial washdown, or dusty environments, mount components inside weatherproof enclosures rated IP65/IP66 with UV-resistant polycarbonate or powder-coated steel enclosures equipped with compression cable glands.

Selectivity & Grading

How to ensure upstream and downstream coordination in power distribution boards?

Ensure proper discrimination by grading current thresholds and tripping time delays: upstream devices should have higher current ratings and intentional short-time delays (Class S), allowing downstream branch MCBs to clear localized faults without blacking out the entire facility.

Installation & Mounting

What mounting rails, busbars, and spatial clearances are required?

Components mount on standard symmetrical 35mm DIN rail (EN 60715 / TH35-7.5) or backplate screw fixings. Maintain recommended top/bottom ventilation gaps (typically 30–50mm) to ensure unrestricted air convection, and use standard pin/fork comb busbars to minimize contact resistance and wiring errors.

Conductor & Torque Sizing

What conductor sizes and terminal tightening torques should be applied?

Select copper or aluminum conductor cross-sections complying with IEC 60364-5-52 current-carrying capacity tables based on continuous load. Always use a calibrated torque screwdriver or torque wrench to tighten terminal screws to the manufacturer-specified torque to prevent hot-spot degradation and loose connections.