AMI Energy Meter

Dual-Source Single Phase Din Rail Electricity Meter

Dual-Source Single Phase Din Rail Electricity Meter

The CA168-SD51 is a next-generation split compact DIN rail meter with Class 1 accuracy and STS compliance, engineered for precise energy measurement in commercial and residential settings. It supports robust anti-tamper detection features for enhanced security, flexible communication with external keypads (Customer Interface Unit, CIU) via PLC, RF, or cable, and configurable installation requirements to suit diverse deployment needs.

Brand:

Calin

Spu:

CA168-SD51

Introduction

Introduction

Main Features

Dual Relay on request
Multi-Tariff
DLMS/COSEM
STS prepayment
20 digits STS encryption
35mm Din-rail installation
Ultrasonic seal on request
Slim-line and space-economy design
Disconnect on overload and no credit
Programmable load limit and low credit warning
Infrared port/RS485/virtual token carrier (optional
Surge protection for lightening and other line surges
Tamper detection and record

Split Configuration for Increased Revenue Protection

The CIU (Customer Interface Unit) is optional. The MCU (Metering& Control Unit) and CIU is linked via Mbus 2 wire communication, galvanically-isolated PLC or RF wireless communication,

the communication method is on request.

The CIU is installed within consumer’s home, while MCU is installed in a meter cabinet away from consumers.

Electrical parameters:
Voltage
Nominal voltage Un	220V/230V/240V
Limited voltage	50%~130%Un
Frequency
Nominal frequency fn	50-60Hz
tolerance	5%
Current
Basic current(Ib)	5A
Maximum current(Imax)	60A/80A
Starting current(Ist)	4‰Ib
Active energy constant	1000imp/kWh
Measurement Accuracy
Active energy to IEC62053‐21	Class1.0
Burden
Voltage circuit	<2W <8VA
Current circuit	<1VA
Temperature range
Operation meter	-25℃ to+70℃
Storage	-40℃ to+85℃

Insulation
Insulation level		4kV rms 1min
Voltage impulse withstand		8kV 1.2/50 μs
Insulation System Classification		Protective Class II
Electro Magnetic Compatibility
Electrostatic discharges
Contact discharge		8kV
Air discharge		16kV
Electromagnetic RF fields
27MHz to 500MHz typical		10V/m
100kHz to 1GHz typical		30V/m
Fast transient burst test		4kV
Mechanical requirements
Meter shell Protection Rate		IP54
Insulation System Classification		Protective Class II
Maximum cable size		8 mm