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| Categories | Current Sensors |
|---|---|
| working temperature: | -10℃~+70℃ |
| Current Range: | ±500A |
| Voltage - Supply: | -15V~-12V;12V~15V |
| Band Width: | 100kHz |
| Bidirectional Current Detection: | Support |
| Description: | ±500A Current Sensors RoHS |
| Mfr. Part #: | LT308-S7/SP1 |
| Model Number: | LT308-S7/SP1 |
| Company Info. |
| Changsha Purple Horn E-Commerce Co., Ltd. |
| Verified Supplier |
| View Contact Details |
| Product List |
The LEM LT 308-S7 is a closed-loop Hall effect current sensor designed for measuring DC, AC, and pulse currents. It provides electrical isolation between the primary and secondary sides, offering excellent accuracy, linearity, low temperature drift, fast response time, wide bandwidth, no insertion loss, and high immunity to external disturbances, making it suitable for various industrial applications.
| Parameter | Description | Value | Notes |
|---|---|---|---|
| Electrical Parameters | Primary nominal RMS current (IPN) | 300 A | |
| Primary current, measuring range (IPM) | 0 .. 500 A | ||
| Secondary nominal RMS current (ISN) | 150 mA | ||
| Conversion ratio (KN) | 1 : 2000 | ||
| Supply voltage (VC) ( 5 %) | 12 .. 15 V | ||
| Accuracy | Total accuracy @ IPN, TA = 25C (XG) | 0.5 % | |
| Linearity (L) | < 0.1 % | Typ | |
| Electrical offset current @ IP = 0, TA = 25C (IOE) | 0.20 mA | Max | |
| Magnetic offset current (IOM) | 0.20 mA | @ IP = 0, overload through 3 x IPN | |
| Temperature drift of IO (IOT) (- 10C .. + 70C) | 0.20 .. 0.64 mA | ||
| Dynamic Parameters | Response time to 10% of IPN (tra) | < 500 ns | |
| Response time to 90% of IPN (tr) | < 1 s | @ 100 A/s di/dt | |
| di/dt following accuracy | > 100 A/s | ||
| Bandwidth (- 3 dB) (BW) | DC .. 100 kHz | ||
| Measurement resistance (RM) | 0 .. 30 | with 12 V @ 300 A max | |
| 0 .. 7 | with 12 V @ 500 A max | ||
| 0 .. 43 | with 15 V @ 300 A max | ||
| 0 .. 17 | with 15 V @ 500 A max | ||
| Environmental Parameters | Ambient operating temperature (TA) | - 10 .. + 70 C | |
| Ambient storage temperature (TS) | - 25 .. + 80 C | ||
| Secondary coil resistance @ TA = 70C (RS) | 21 | ||
| Isolation Performance | AC isolation test voltage (Vd) | 3.52 kV | RMS, 50 Hz, 1 minute, primary to secondary |
| Impulse withstand voltage (Vw) | 6.5 kV | 1.2/50 s | |
| Creepage distance (dCp) | 10 mm | ||
| Clearance distance (dCI) | 6 mm | ||
| Comparative tracking index (CTI) | 275 | (group IIIa) | |
| General | Mass | 79 g | |
| Dimensions | See diagram | (in mm) |
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