LEM ATO Series Current Transducer, 63A

LEM Transformer

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.

Features and Benefits

• 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

Applications

• Branch current monitoring
• Defective equipment detection and power quality control
• Energy consumption sub metering and analysis

Certifications

• 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)