CTSR 0.3-TP/SP2, C/L Hall Effect Earth Leakage Current Sensor, 300mA Features DC & AC earth leakage current transducer using a flux-gate principle PCB mounting ±15V power supply ±5V output @ IPN Isolated plastic case recognized according to UL94-V0. Advantages Small size Wide Aperture Bandwidth : DC and 3.5 kHz Response time better than 50 ms Cost effective, compact alternative to classical RCDs (Residual Current Device) Applications Earth leakage detection in transformerless solar inverters 1st human contact protection of PV arrays Failure detection in power sources Symmetrical fault detection (e.g. after motor inverter) Current leakage detection in stacked DC sources Single phase or three phase differential current measurement up to ±30A per wire (DC or AC) Application Domains Industrial Specification LEM Part Number CTSR 0.3-TP/SP2 Technology Closed Loop Hall Effect ROHS Yes Supply Voltage +/-15VDC Load Current (RMS + DC) 300mA Output 5V Analogue Isolation 5.4kV Bandwidth DC-3.5kHz Mounting Style PCB Mount Operating Temperature Range -40°C / 105°C Accuracy 1% Aperture ø 20.1mm Specail Feature No retention pin Unit Weight 28g Factory Pack Qty 10 Datasheet Product Datasheet

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CTSR CTSR 0.3-TP/SP10, C/L Hall Effect Earth Leakage Current Sensor, 300mA Features DC & AC earth leakage current transducer using a flux-gate principle PCB mounting ±15V power supply ±5V output @ IPN Isolated plastic case recognized according to UL94-V0. Advantages Small size Wide Aperture Bandwidth : DC and 3.5 kHz Response time better than 50 ms Cost effective, compact alternative to classical RCDs (Residual Current Device) Applications Earth leakage detection in transformerless solar inverters 1st human contact protection of PV arrays Failure detection in power sources Symmetrical fault detection (e.g. after motor inverter) Current leakage detection in stacked DC sources Single phase or three phase differential current measurement up to ±30A per wire (DC or AC) Application Domains Industrial Specification LEM Part Number CTSR 0.3-TP/SP10 Technology Closed Loop Hall Effect ROHS Yes Supply Voltage +/-15VDC Load Current (RMS + DC) 300mA Output 2.5Vref Isolation 5.4kV Bandwidth DC-3.5kHz Mounting Style PCB Mount Operating Temperature Range -40°C / 105°C Accuracy 1% Aperture ø 20.1mm Special Feature No retention pin, Test winding included Unit Weight 28g Factory Pack Qty 10 Datasheet Product Datasheet

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CTSR 0.3-P/SP4, C/L Hall Effect Earth Leakage Current Sensor, 300mA Features DC & AC earth leakage current transducer using a flux-gate principle PCB mounting ±15V power supply ±5V output @ IPN Isolated plastic case recognized according to UL94-V0. Advantages Small size Wide Aperture Bandwidth : DC and 3.5 kHz Response time better than 50 ms Cost effective, compact alternative to classical RCDs (Residual Current Device) Applications Earth leakage detection in transformerless solar inverters 1st human contact protection of PV arrays Failure detection in power sources Symmetrical fault detection (e.g. after motor inverter) Current leakage detection in stacked DC sources Single phase or three phase differential current measurement up to ±30A per wire (DC or AC) Application Domains Industrial Specification LEM Part Number CTSR 0.3-P/SP4 Technology Closed Loop Hall Effect ROHS Yes Supply Voltage +/-15VDC Load Current (RMS + DC) 300mA Output 5V Analogue Isolation 5.4kV Bandwidth DC-3.5kHz Mounting Style PCB Mount Operating Temperature Range -40°C / 105°C Accuracy 1% Aperture ø 20.1mm Special Feature No retention pin Unit Weight 28g Factory Pack Qty 10 Datasheet Product Datasheet

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CTSR 0.3-TP/SP14, C/L Hall Effect Earth Leakage Current Sensor, 300mA Features DC & AC earth leakage current transducer using a flux-gate principle PCB mounting ±15V power supply ±5V output @ IPN Isolated plastic case recognized according to UL94-V0. Advantages Small size Wide Aperture Bandwidth : DC and 3.5 kHz Response time better than 50 ms Cost effective, compact alternative to classical RCDs (Residual Current Device) Applications Earth leakage detection in transformerless solar inverters 1st human contact protection of PV arrays Failure detection in power sources Symmetrical fault detection (e.g. after motor inverter) Current leakage detection in stacked DC sources Single phase or three phase differential current measurement up to ±30A per wire (DC or AC) Application Domains Industrial Specification LEM Part Number CTSR 0.3-TP/SP14 Technology Closed Loop Hall Effect ROHS Yes Supply Voltage +/-15VDC Load Current (RMS + DC) 300mA Output 2.5Vref Isolation 5.4kV Bandwidth DC-3.5kHz Mounting Style PCB Mount Operating Temperature Range -40°C / 105°C Accuracy 1% Aperture ø 20.1mm Special Feature No retention pin, Test winding included Unit Weight 28g Factory Pack Qty 10 Datasheet Product Datasheet

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LEM CTSR 0.3-P/SP11, C/L Hall Effect Earth Leakage Current Sensor, 300mA Features DC & AC earth leakage current transducer using a flux-gate principle PCB mounting ±15V power supply ±5V output @ IPN Isolated plastic case recognized according to UL94-V0. Advantages Small size Wide Aperture Bandwidth : DC and 3.5 kHz Response time better than 50 ms Cost effective, compact alternative to classical RCDs (Residual Current Device) Applications Earth leakage detection in transformerless solar inverters 1st human contact protection of PV arrays Failure detection in power sources Symmetrical fault detection (e.g. after motor inverter) Current leakage detection in stacked DC sources Single phase or three phase differential current measurement up to ±30A per wire (DC or AC) Application Domains Industrial Specification LEM Part Number CTSR 0.3-P/SP11 Technology Closed Loop Hall Effect ROHS Yes Supply Voltage +/-15VDC Load Current (RMS + DC) 300mA Measuring Range +/-850 mA Output 2.5Vref Isolation 5.4kV Bandwidth DC-3.5kHz Mounting Style PCB Mount Operating Temperature Range -40°C / 105°C Accuracy 1% Aperture ø 20.1mm Special Feature No retention pin, Test winding included, Extended Measuring Range, Different Pin Out Unit Weight 28g Factory Pack Qty 10 Datasheet Product Datasheet

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LEM CTSR 0.3-P/SP11, C/L Hall Effect Earth Leakage Current Sensor, 300mA Features DC & AC earth leakage current transducer using a flux-gate principle PCB mounting ±15V power supply ±5V output @ IPN Isolated plastic case recognized according to UL94-V0. Advantages Small size Wide Aperture Bandwidth : DC and 3.5 kHz Response time better than 50 ms Cost effective, compact alternative to classical RCDs (Residual Current Device) Applications Earth leakage detection in transformerless solar inverters 1st human contact protection of PV arrays Failure detection in power sources Symmetrical fault detection (e.g. after motor inverter) Current leakage detection in stacked DC sources Single phase or three phase differential current measurement up to ±30A per wire (DC or AC) Application Domains Industrial Specification LEM Part Number CTSR 0.3-P/SP11 Technology Closed Loop Hall Effect ROHS Yes Supply Voltage +/-15VDC Load Current (RMS + DC) 300mA Measuring Range +/-850 mA Output 2.5Vref Isolation 5.4kV Bandwidth DC-3.5kHz Mounting Style PCB Mount Operating Temperature Range -40°C / 105°C Accuracy 1% Aperture ø 20.1mm Special Feature No retention pin, Test winding included, Extended Measuring Range, Different Pin Out Unit Weight 28g Factory Pack Qty 10 Datasheet Product Datasheet

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LEM CTSR 0.3-P/SP1, C/L Hall Effect Earth Leakage Current Sensor, 300mA Features DC & AC earth leakage current transducer using a flux-gate principle PCB mounting ±15V power supply ±5V output @ IPN Isolated plastic case recognized according to UL94-V0. Advantages Small size Wide Aperture Bandwidth : DC and 3.5 kHz Response time better than 50 ms Cost effective, compact alternative to classical RCDs (Residual Current Device) Applications Earth leakage detection in transformerless solar inverters 1st human contact protection of PV arrays Failure detection in power sources Symmetrical fault detection (e.g. after motor inverter) Current leakage detection in stacked DC sources Single phase or three phase differential current measurement up to ±30A per wire (DC or AC) Application Domains Industrial Specification LEM Part Number CTSR 0.3-P/SP1 Technology Closed Loop Hall Effect ROHS Yes Supply Voltage +/-15VDC Load Current (RMS + DC) 300mA Measuring Range +/-850 mA Output 2.5Vref Isolation 5.4kV Bandwidth DC-3.5kHz Mounting Style PCB Mount Operating Temperature Range -40°C / 105°C Accuracy 1% Aperture ø 20.1mm Special Feature No retention pin, Test winding included, Extended Measuring Range, Different Pin Out Unit Weight 28g Factory Pack Qty 10   Datasheet Product Datasheet

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LEM CKSR 6-NP Series Closed Loop AC/DC Hall Effect Sensor Features Closed loop current transducer Voltage output 4.3kV Isolation Frequency bandwidth 300kHz Single supply + 5 V Galvanic isolation between primary and secondary Low power consumption Compact design for PCB mounting Advantages CKSR footprint compatible Very good dv/dt immunity Low foot-print Low offset drift Reference pin with two modes REF IN and REF OUT Extended measuring range for unipolar measurement. High creepage / clearance distances Applications AC variable speed and servo motor drives Static converters for DC motor drives Battery supplied applications Uninterruptible Power Supplies (UPS) Switched Mode Power Supplies (SMPS) Power supplies for welding applications Solar Inverter Standards EN 50178: 1997 UL 508: 2004 IEC 61010-1: 2010 (safety) Application Domain Industrial Specification LEM Part Number CKSR 6-NP Sample Kit 3 P Technology Closed Loop Multi Range Hall Effect Aperture None ROHS Yes Supply Voltage 5 VDC Load Current (RMS + DC) 6 Amp Measurement Range +/-20 Amp Output 2.5 Vref Isolation 4.3 kV Bandwidth DC-300 kHz Mounting Style PCB Mount Operating Temperature Range -40°C / 85°C Accuracy 0.8% Termination Style PCB Unit Weight 9g Factory Packaging 3 Datasheet Product Datasheet Application Notes LEM Applications Manual 3rd Edition Alternatives LKSR 6-NP

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LEM CKSR 50-NP Series Closed Loop AC/DC Hall Effect Sensor Features Closed loop current transducer Voltage output 4.3kV Isolation Frequency bandwidth 300kHz Single supply + 5 V Galvanic isolation between primary and secondary Low power consumption Compact design for PCB mounting Advantages CKSR footprint compatible Very good dv/dt immunity Low foot-print Low offset drift Reference pin with two modes REF IN and REF OUT Extended measuring range for unipolar measurement. High creepage / clearance distances Applications AC variable speed and servo motor drives Static converters for DC motor drives Battery supplied applications Uninterruptible Power Supplies (UPS) Switched Mode Power Supplies (SMPS) Power supplies for welding applications Solar Inverter Standards EN 50178: 1997 UL 508: 2004 IEC 61010-1: 2010 (safety) Application Domain Industrial Specification LEM Part Number CKSR 50-NP Technology Closed Loop Hall Effect Aperture None ROHS Yes Supply Voltage 5 VDC Load Current (RMS + DC) 50 Amp Measurement Range +/-150Amp Output 2.5 Vref Isolation 4.3 kV Bandwidth DC-300 kHz Mounting Style PCB Mount Operating Temperature Range -40°C / 85°C Accuracy 0.8% Termination Style PCB Unit Weight 9g Factory Packaging 25 Datasheet Product Datasheet Application Notes LEM Applications Manual 3rd Edition Alternatives LKSR 50-NP

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LEM CKSR 15-NP Series Closed Loop AC/DC Hall Effect Sensor Features Closed loop current transducer Voltage output 4.3kV Isolation Frequency bandwidth 300kHz Single supply + 5 V Galvanic isolation between primary and secondary Low power consumption Compact design for PCB mounting Advantages CKSR footprint compatible Very good dv/dt immunity Low foot-print Low offset drift Reference pin with two modes REF IN and REF OUT Extended measuring range for unipolar measurement. High creepage / clearance distances Applications AC variable speed and servo motor drives Static converters for DC motor drives Battery supplied applications Uninterruptible Power Supplies (UPS) Switched Mode Power Supplies (SMPS) Power supplies for welding applications Solar Inverter Standards EN 50178: 1997 UL 508: 2004 IEC 61010-1: 2010 (safety) Application Domain Industrial Specification LEM Part Number CKSR 15-NP Technology Closed Loop Hall Effect Aperture None ROHS Yes Supply Voltage 5 VDC Load Current (RMS + DC) 15 Amp Measurement Range +/- 51Amp Output 2.5 Vref Isolation 4.3 kV Bandwidth DC-300 kHz Mounting Style PCB Mount Operating Temperature Range -40°C / 85°C Accuracy 0.8% Termination Style PCB Unit Weight 9g Factory Packaging 25 Datasheet Product Datasheet Application Notes LEM Applications Manual 3rd Edition Alternatives LKSR 15-NP

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LEM CASR 6-NP Series Closed Loop AC/DC Hall Effect Sensor Features Closed loop current transducer Voltage output 4.3kV Isolation Frequency bandwidth 300kHz Single supply + 5 V Galvanic isolation between primary and secondary Low power consumption Compact design for PCB mounting Advantages LTSR footprint compatible Very good dv/dt immunity Very low temperature coefficient of offset Reference pin with two modes REF IN and REF OUT Extended measuring range for unipolar measurement. High creepage / clearance distances Applications AC variable speed and servo motor drives Static converters for DC motor drives Battery supplied applications Uninterruptible Power Supplies (UPS) Switched Mode Power Supplies (SMPS) Power supplies for welding applications Solar Inverter Standards EN 50178: 1997 UL 508: 2013 IEC 61010-1(safety) Application Domain Industrial Specification LEM Part Number CASR 6-NP Technology Closed Loop Hall Effect Aperture None ROHS Yes Supply Voltage 5 VDC Load Current (RMS + DC) 6 Amp Measurement Range +/-20 Amp Output 2.5 Vref Isolation 4.1 kV Bandwidth DC-300 kHz Mounting Style PCB Mount Operating Temperature Range -40°C / 85°C Accuracy 0.8% Termination Style PCB Unit Weight 9g Factory Packaging 25 Datasheet Product Datasheet Application Notes LEM Applications Manual 3rd Edition Alternatives LTSR 6-NP LSXR 6-NPS

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LEM CASR 50-NP Series Closed Loop AC/DC Hall Effect Sensor Features Closed loop current transducer Voltage output 4.3kV Isolation Frequency bandwidth 300kHz Single supply + 5 V Galvanic isolation between primary and secondary Low power consumption Compact design for PCB mounting Advantages LTSR footprint compatible Very good dv/dt immunity Very low temperature coefficient of offset Reference pin with two modes REF IN and REF OUT Extended measuring range for unipolar measurement. High creepage / clearance distances Applications AC variable speed and servo motor drives Static converters for DC motor drives Battery supplied applications Uninterruptible Power Supplies (UPS) Switched Mode Power Supplies (SMPS) Power supplies for welding applications Solar Inverter Standards EN 50178: 1997 UL 508: 2013 IEC 61010-1(safety) Application Domain Industrial Specification LEM Part Number CASR 50-NP Technology Closed Loop Hall Effect Aperture None ROHS Yes Supply Voltage 5 VDC Load Current (RMS + DC) 50 Amp Measurement Range +/-150 Amp Output 2.5 Vref Isolation 4.1 kV Bandwidth DC-300 kHz Mounting Style PCB Mount Operating Temperature Range -40°C / 85°C Accuracy 0.8% Termination Style PCB Unit Weight 9g Factory Packaging 3 Datasheet Product Datasheet Application Notes LEM Applications Manual 3rd Edition Alternatives Contact Us for Possible Replacement

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