LEM International, SEEIM - issue 2, 2019
New closed-loop current transducers, based on a
custom Hall Effect LEM ASIC, measure the leakage current
up to 2 KHz frequency. Used in transformerless photovoltaic
(PV) inverters for the residential market, LDSR measures AC &
DC fault currents and ensures the safety of people around the
installation. LDSR offers a competitive price, low dimensions and
complies with all regulatory standards.
LDSR is also an excellent alternative to expensive fluxgate solutions
due to its small footprint and simple construction.
• 300 mA nominal current
• PCB mounting
• Small dimensions & light
• -40 to +105°C operating
• Single or three phase
At the heart of power electronics.