<
>
Specifications
working temperature:
-10℃~+70℃
Current Range:
±500A
Voltage - Supply:
-15V~-12V;12V~15V
Band Width:
100kHz
Bidirectional Current Detection:
Support
Mfr. Part #:
LT308-S7/SP1
Key Attributes
Model Number:
LT308-S7/SP1
Product Description
Product Overview
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.
Product Attributes
- Brand: LEM
- Certifications: EN 50178, IEC 61010-1, UL 94-V0 (insulating case)
- Origin: Shanghai Jaren (for socket)
Technical Specifications
| 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) |
Advantages
- Excellent accuracy
- Good linearity
- Low temperature drift
- Optimal response time
- Wide bandwidth
- No insertion loss
- Strong immunity to interference
- Current overload capability
Application Scenarios
- AC variable speed drives, servo motors
- DC motor traction static converters
- Battery power supplies
- Uninterruptible Power Supplies (UPS)
- Switch Mode Power Supplies (SMPS)
- Welding power supplies
- Industrial applications
2508141725_LEM-LT308-S7-SP1_C5891291.pdf
Request A Quote
Please Use Our Online Inquiry Contact Form Below If You Have Any Questions, Our Team Will Get Back To You As Soon As Possible
