4G + RS485 Communication
Dual-channel communication: 4G uplink (data plan included) plus RS485 with YTL-BUS protocol for local reading and parameter setting.
DTSU353-4G Three-Phase Prepaid Power Data Collector with 4G
DTSU353-4G is a three-phase four-wire DIN-rail prepaid power data collector with a built-in magnetic latching relay and 4G module (data plan included). It supports 4G uplink plus RS485 (YTL-BUS) for remote reading and parameter setting. Measures energy, voltage, current, power, frequency and power factor with an LCD 6+2 display. Over-load / reverse / phase-loss alarms. Class 1.0 accuracy, 3×10(100) A.
DIN-Rail Mounting
3P4W Direct Connection
4G IoT Communication
3×10(100) A Maximum current
3×220/380 V Rated voltage
Class 1.0 Active energy accuracy
−20°C to +70°C Operating temperature
Product Highlights
Three-Phase 4G Metering with Remote Load Control
Class 1.0 Active Energy Accuracy
Class 1.0 active-energy accuracy per IEC 62053-21, ensuring dependable billing and sub-billing data for three-phase loads.
Full 3-Phase LCD Display
LCD 6+2 shows remaining credit, total active energy, per-phase voltage/current/power, combined power, power factor and frequency.
Prepaid Load Control
Built-in magnetic latching relay supports prepaid load control up to 400 V / 100 A.
Remote Reading & Setup
4G communication supports remote meter reading and parameter configuration via YTL-BUS.
Overload & Wiring Fault Detection
Detects overload, reverse connection and phase loss with dedicated alarm indication.
Technical Specifications
Technical Specifications
| Voltage | 3 × 220/380 V |
| Current | 3 × 10(100) A |
| Frequency | 50 Hz |
| Start current | 0.004 Ib |
| Pulse constant | 1000 imp/kWh |
| Power consumption | 2 W / 10 VA |
| Active energy accuracy | Class 1.0 |
| Communication interface | 4G + RS485 |
| Protocol | YTL-BUS (4G uplink and RS485 local) |
| Data plan | 4G data plan included |
| Prepaid function | Pay-before-use with built-in magnetic latching relay (load up to 400 V / 100 A) |
| Remote operations | Remote meter reading and parameter setting over 4G or RS485 |
| Protection / alarms | Over-load (steady alarm), reverse and phase-loss (flashing alarm) |
| Display | Remaining credit, total active energy, L1–L3 voltage/current/power, combined power, power factor, frequency, power threshold, serial number, firmware, signal strength, 4G status, total recharged energy, date/time, IMEI and SIM |
| Operating temperature | −20°C to +70°C |
| Relative humidity | 75% (avg) / 95% (max) |
| Wiring | Three-phase four-wire (3P4W), direct connection |
| Applicable standards | IEC 62052-11 / IEC 62053-21 |
Structure & Dimensions
DTSU353-4G Dimensions & Wiring
Dimensions
Wiring
FAQ
Product FAQ
What is DTSU353-4G?
DTSU353-4G is a three-phase four-wire DIN-rail prepaid power data collector with a built-in magnetic latching relay and 4G module (data plan included). It supports 4G uplink plus RS485 (YTL-BUS) for remote reading and parameter setting. Measures energy, voltage, current, power, frequency and power factor with an LCD 6+2 display. Over-load / reverse / phase-loss alarms. Class 1.0 accuracy, 3×10(100) A.
What communication does it support?
4G uplink (data plan included) plus RS485 with YTL-BUS protocol for local reading and parameter setting.
What protection is provided?
Over-load, reverse and phase-loss detection with alarm LED indication; magnetic latching relay disconnects load on credit exhaustion.
What is the accuracy class?
Class 1.0 active-energy accuracy in accordance with the applicable GB/T or IEC standard.
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