LEM USA, Inc.

LDSR Leakage Current Sensors

LEM sensors provide leakage current measurement in transformerless PV inverters for the residential market

Image of LEM LDSR Photovoltaic Inverters Leakage Current SensorsThe LEM LDSR product family is designed for the measurement of DC, AC, and pulse currents of 0.3 ARMS nominal, providing galvanic separation between the primary and secondary circuits. These current sensors are specifically tailored for single-phase systems and are primarily used for earth leakage current measurement in solar applications. LDSR sensors operate with a single +5 V supply, have an operating temperature range from -40°C to +105°C, and are designed for PCB mounting. Utilizing closed-loop Hall effect sensor technology, the LDSR series ensures reliable and precise current measurements, making them well-suited for renewable energy applications.

Features
  • Closed-loop Hall effect (compensated) current sensors
  • Voltage output
  • Single supply voltage
  • PCB mounting
  • Isolation test voltage: 1.71 KVRMS/50Hz/1 min
  • Bandwidth DC to 2 KHz (-3 dB)
  • Closed-loop ASIC
  • High creepage and clearance distances (7.1 mm) for high insulation
Applications
  • Renewable energy
  • Leakage current measurement in transformerless PV inverters
  • Failure detection in power sources
  • Symmetrical fault detection
  • Current leakage detection in stacked DC sources

LDSR Photovoltaic Inverters Leakage Current Sensors

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
3 PHASE LEAKAGE CURRENT DETECTIOLDSR 0.3-NP3 PHASE LEAKAGE CURRENT DETECTIO0 - Immediate$309.52View Details
1 PHASE LEAKAGE CURRENT DETECTIOLDSR 0.3-TP/SP11 PHASE LEAKAGE CURRENT DETECTIO60 - Immediate$274.87View Details
Published: 2024-10-09

Related Product Training Modules

LDSR Leakage Current Measurement for Safety This presentation will introduce LEM's LDSR leakage current measurement for safety.