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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
Key Attributes
Model Number:
LT308-S7
Product Description
Product Overview
The LEM LT 308-S7 is a closed-loop (compensated) current sensor utilizing Hall effect technology. It provides insulated measurement of DC, AC, and pulse currents with excellent accuracy, good linearity, low temperature drift, and fast response time. Its wide bandwidth and no insertion loss make it suitable for various industrial applications.
Product Attributes
- Brand: LEM
- Certifications: EN 50178, IEC 61010-1, UL 94-V0 (insulating housing)
Technical Specifications
| Parameter | Value | Unit | Notes |
| Product Name | LT 308-S7 | Current Sensor | |
| Primary Rated RMS Current (IPN) | 300 | A | |
| Primary Current, Measuring Range (IPM) | 0 .. 500 | A | |
| Secondary Rated RMS Current (ISN) | 150 | mA | |
| Conversion Ratio (KN) | 1 : 2000 | ||
| Supply Voltage (VC) ( 5 %) | 12 .. 15 | V | |
| Current Consumption (IC) | 28 (@ 12V) + IS | mA | |
| Overall Accuracy @ IPN, TA = 25C (XG) | 0.5 | % | |
| Linearity (L) | < 0.1 | % | Typ |
| Electrical Offset Current @ IP = 0, TA = 25C (IOE) | 0.20 | mA | |
| Magnetic Offset Current @ IP = 0, overload 3 x IPN (IOM) | 0.20 | mA | 1) |
| Temperature Drift of IO (- 10C .. + 70C) (IOT) | 0.20 .. 0.64 | mA | |
| Response Time to 10 % of IPN (tra) | < 500 | ns | |
| Response Time to 90 % of IPN (tr) | < 1 | s | 2) |
| di/dt Follower Accuracy | > 100 | A/s | |
| Bandwidth (- 3 dB) (BW) | DC .. 100 | kHz | |
| Environmental Operating Temperature (TA) | - 10 .. + 70 | C | |
| Environmental Storage Temperature (TS) | - 25 .. + 80 | C | |
| Secondary Coil Resistance @ TA = 70C (RS) | 21 | ||
| Mass (m) | 79 | g | |
| AC Isolation Test Voltage (Vd) (RMS), 50 Hz, 1 min | 3.52 | kV | 1) |
| Impulse Withstand Voltage (Vw) 1.2/50 s | 6.5 | kV | |
| Creepage Distance (dCp) | 10 | mm | 2) |
| Electrical Clearance (dCI) | 6 | mm | 2) |
| Comparative Tracking Index (CTI) (group IIIa) | 275 | ||
| Load Voltage Category | OV 3 | ||
| Pollution Degree | PD2 | ||
| Primary Through-Hole Diameter | 20 | mm | |
| Mounting Holes | 2 holes 5.4 mm |
1912111437_LEM-LT308-S7_C454777.pdf
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