STS Smart Energy Meters

GSD7666-DG1 Single-phase DIN-rail Prepayment Energy Meter

GSD7666-DG1 is an advanced & compact DIN-rail energy meter with split-type structure & Class 1 accuracy. Complying with STS standard, the meter is suitable for commercial & residential cus

Details

GSD7666-DG1 is an advanced & compact DIN-rail energy meter with split-type structure & Class 1 accuracy. Complying with STS standard, the meter is suitable for commercial & residential customers and has outstanding tamper detection features. It could make communication with the external Customer Interface Unit(CIU) by M-bus, PLC or RF, and its installation requirements are also optional.

Main Features

·Multi-tariff
·DLMS/COSEM compliant
·STS prepayment
·20-digit STS encryption
·35mm DIN-rail installation
·Tamper detection & recording 
·MCU linking to CIU by M-bus/PLC/RF(optional)
·Slim-line & space-saving design
·Disconnecting on overload & no-credit condition
·Programmable warning of power limit & low credit 
·With infrared port/RS485/virtual token carrier (optional)
·Surge protection against lightening & other line surges

 Split-type Structure for Anti-tampering Protection

The meter consists of two parts, the MCU (Metering & Control Unit) and CIU (Customer Interface Unit),which could be linked via communication modes of M-bus, PLC or RF based on requirements.
The CIU is installed inside the customer’s home for inputting prepayment token and  searching for information, while the MCU is normally installed in a meter enclosure away from the customer’s home.

GSD7666-DG1 Single-phase DIN-rail Prepayment Energy Meter

ELECTRICAL PARAMETERS

VOLTAGE
Nominal voltage Un 230V
Limited voltage 
70% ~ 120%Un
FREQUENCY
Nominal frequency fn 
50 ~ 60Hz
Tolerance
±5%
CURRENT
Basic current(Ib)
5A
Maximum current(Imax)
60A/80A
Starting current(Ist)
20mA
Active energy constant
1000imp/kWh
MEASUREMENTACCURACY
Active energy as IEC62053-21
Class 1.0
POWERCONSUMPTION
Voltage circuit
<2W<8VA
Current circuit
<1VA
TEMPERATURE RANGE
Operation range
-25℃ ~ +70℃
Storage range
-40℃ ~ +85℃

INSULATION

Insulation level
4kV rms 1min
Impulse withstand voltage
8kV 1.2/50 μs
Insulation system classification
Protection class II

ELECTRO MAGNETIC COMPATIBILITY

ELECTROSTATIC DISCHARGES
Contact discharge
8kV
Air discharge
15kV
ELECTROMAGNETIC RF FIELDS
27MHz to 500MHz typical
10V/m
100kHz to 1GHz typical
30V/m
Fast transient burst test
4kV
MECHANICAL REQUIREMENTS
Meter case protection class
IP54
Insulation system classification
Protection class II
Maximum cable size
8 mm

GSD7666-DG1 Single-phase DIN-rail Prepayment Energy Meter

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