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Specifications
working temperature:
-40℃~+105℃
Current Range:
15A
Voltage - Supply:
4.75V~5.25V
Sensitivity:
41.67mV/A
Mfr. Part #:
LPSR 15-NP
Key Attributes
Model Number:
LPSR 15-NP
Product Description
Product Overview
The LEM LPSR series are closed-loop, multi-range current transducers designed for the electronic measurement of DC, AC, and pulsed currents with galvanic separation between primary and secondary circuits. These transducers offer a voltage output, unipolar supply voltage, and a compact design for PCB mounting. They feature very low offset drift, excellent dv/dt immunity, and an extended measuring range for unipolar measurements, making them suitable for various industrial applications including motor drives, UPS, SMPS, and solar inverters.
Product Attributes
- Brand: LEM
- Origin: Not specified
- Material: Not specified
- Color: Not specified
- Certifications: IEC 61800-1, IEC 61800-2, IEC 61800-3, IEC 61800-5-1, IEC 62109-1, IEC 62477-1, UL 508, CSA C22.2 NO. 14-10
Technical Specifications
| Parameter | Symbol | Unit | LPSR 6-NP | LPSR 15-NP | LPSR 25-NP | Comment |
| Primary nominal RMS current | IP N | A | 6 | 15 | 25 | Apply derating according to fig. |
| Primary current, measuring range | IP M | A | -20 to 20 | -51 to 51 | -85 to 85 | |
| Number of primary turns | NP | 1, 2, 3, 4 | 1, 2, 3, 4 | 1, 2, 3, 4 | ||
| Supply voltage | UC | V | 4.75 to 5.25 | 4.75 to 5.25 | 4.75 to 5.25 | |
| Current consumption | IC | mA | 17 + 20*NP | 17 + 20*NP | 17 + 20*NP | NS = 2000 turns |
| Reference voltage @ IP = 0 A (Internal) | Vref | V | 2.485 to 2.515 | 2.485 to 2.515 | 2.485 to 2.515 | |
| Output voltage @ IP = 0 A | Vout | V | Vref | Vref | Vref | |
| Electrical offset voltage | VO E | mV | -5 to 100 | -1.75 to 1.75 | -1 to 1 | 100 % tested |
| Temperature coefficient of Vref | TCVref | ppm/K | 70 | 70 | 70 | Internal reference |
| Temperature coefficient of Vout @ IP = 0 A | TCVout | ppm/K | 14 ppm/K of 2.5 V | 6 ppm/K of 2.5 V | -40 C 105 C | |
| Theoretical sensitivity | Gth | mV/A | 104.2 | 41.67 | 625 mVIP N | |
| Sensitivity error | G | % | -0.2 to 0.2 | -0.2 to 0.2 | 100 % tested | |
| Temperature coefficient of G | TCG | ppm/K | 40 | 40 | -40 C 105 C | |
| Linearity error | L | % of IP N | -0.1 to 0.1 | -0.1 to 0.1 | ||
| Magnetic offset current (10 IP N) | IO M | mA | -25 to 25 | -45 to 45 | ||
| Output RMS voltage noise spectral density (100 100 kHz) | eno | V/Hz | 7 | 3.5 | referred to primary | |
| Primary current, detection threshold | IP Th | A | 4.02 IP N to 4.17 IP N | 4.02 IP N to 4.17 IP N | 4.02 IP N to 4.17 IP N | |
| Overcurrent detection response time | tr Th | s | 1.4 to 2.2 | 1.4 to 2.2 | ||
| Overcurrent detection hold time | thold Th | ms | 1 | 1 | ||
| Reaction time @ 10 % of IP N | tra | s | 0.3 | 0.3 | RL = 1 k, di/dt = 50 A/s | |
| Step response time to 90 % of IP N | tr | s | 0.4 | 0.4 | RL = 1 k, di/dt = 50 A/s | |
| Frequency bandwidth (1 dB) | BW | kHz | 300 | RL = 1 k | ||
| Frequency bandwidth (3 dB) | BW | kHz | 300 | RL = 1 k | ||
| Overall accuracy | XG | % of IP N | 1.25 | 0.75 | ||
| Accuracy | X | % of IP N | 0.5 | 0.5 | ||
| Absolute maximum ratings: Maximum supply voltage | UC max | V | 7 | 7 | 7 | |
| Absolute maximum ratings: Maximum primary conductor temperature | TB max | C | 110 | 110 | 110 | |
| Absolute maximum ratings: Maximum primary current | IP max | A | 20 IP N | 20 IP N | 20 IP N | |
| Insulation coordination: RMS voltage for AC insulation test, 50 Hz, 1 min | Ud | kV | 4.3 | 4.3 | 4.3 | |
| Insulation coordination: Impulse withstand voltage 1.2/50 s | W | kV | 8 | 8 | 8 | |
| Insulation coordination: Insulation resistance | RINS | G | 18 | 18 | 18 | measured at 500 V DC |
| Insulation coordination: Clearance (pri. - sec.) | dCI | mm | See dimensions drawing on page 19 | See dimensions drawing on page 19 | See dimensions drawing on page 19 | |
| Insulation coordination: Creepage distance (pri. - sec.) | dCp | mm | ||||
| Insulation coordination: Comparative tracking index | CTI | 600 | 600 | 600 | ||
| Environmental: Ambient operating temperature | TA | C | -40 to 105 | -40 to 105 | -40 to 105 | |
| Environmental: Ambient storage temperature | TS | C | -55 to 125 | -55 to 125 | -55 to 125 | |
| Environmental: Mass | m | g | 10 | 10 | 10 |
2411272245_LEM-LPSR-15-NP_C7295701.pdf
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