The LEM transformer is a split core current transformer with high accuracy and low phase shift. ATO series is ideal for the electronic measurement of AC waveform current with galvanic separation between the primary circuit (power) and the secondary circuit (measurement). ATO series is an ideal current transformer for new smart grid applications.
10 and 16mm diameter aperture
16mm sensing aperture
1m output cable
Accuracy class 1
Cable output: 1m
Class accuracy 1 (voltage output) and 3 (current output) according to IEC 61869 standard
Compact and self powered
Current (ratio 1mA/A) or voltage output (ratio 225 or 333mV @ IPr)
DIN rail adapter (optional)
Easy mounting
Frequency: 50/60Hz
Low cost solution
Measurement of AC primary currents from 0 to 125A
No interruption of electricity during installation on insulated conductors
Operating ranges from 10°C and +55°C for voltage output models, from -25°C and +70°C for current output models
Quick, non intrusive and easy setup
Rated insulation voltage 600V CATIII PD2, basic insulation
Slot for attaching the C. T. On the primary with plastic tie
Voltage output 333 mV at IPr
Branch current monitoring
Defective equipment detection and power quality control
Energy consumption sub metering and analysis
CE certified EMC 2014/30/EU regarding their safety according to the European directive 2014/35/EU and tested according to the standards IEC 61010-1
IEC 61869 for Instrument transformers performances
UL 2808 (in progress)
UL 508 (UR marking)
Attribute | Value |
---|---|
Nominal Current | 63A |
Transformer Type | Split Core |
Mounting Type | DIN Rail |
Frequency Bandwidth | 1.5 kHz |
Bore Size | 10mm |
Series | ATO |
Minimum Operating Temperature | -10°C |
Maximum Operating Temperature | +55°C |
Depth | 32mm |
Height | 45.5mm |
Width | 33.5mm |