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Specifications
Mfr. Part #:
LT108-S7/SP12
Key Attributes
Model Number:
LT108-S7/SP12
Product Description
Product Overview
The LEM LT 108-S7/SP12 is a closed-loop (compensated) current sensor utilizing Hall effect technology. It is designed for measuring DC, AC, and pulse currents with galvanic isolation between the primary and secondary sides. The sensor offers excellent accuracy, good linearity, low temperature drift, and a wide bandwidth, making it suitable for various industrial applications.
Product Attributes
- Brand: LEM
- Certifications: UL 94-V0, EN 50178, IEC 61010-1
- Material: Insulated housing
- Origin: Not specified
- Color: Not specified
Technical Specifications
| Parameter | Value | Unit | Notes |
| Primary Current (IPN) | |||
| Rated RMS Primary Current | 100 | A | |
| Measuring Range | 0 .. 150 | A | |
| Secondary Current (ISN) | |||
| Rated RMS Secondary Current | 50 | mA | |
| Conversion Ratio (KN) | |||
| Ratio | 1 : 2000 | ||
| Power Supply (VC) | |||
| Voltage | 12 .. 15 | V | ( 5 %) |
| Current Consumption | 28 (@ 12V) + IS | mA | |
| Accuracy | |||
| Total Accuracy @ IPN, TA = 25C | 0.6 | % | |
| Linearity | < 0.1 | % | Typ |
| Electrical Offset Current @ IP = 0, TA = 25C | 0.15 | mA | |
| Magnetic Offset Current @ IP = 0, overload 3 x IPN | 0.10 | mA | 1) |
| Temperature Drift of IOE (-10C .. +70C) | 0.20 0.64 | mA | |
| Dynamic Parameters | |||
| Response Time to 10% of IPN | < 500 | ns | |
| Response Time to 90% of IPN | < 1 | s | 2) |
| di/dt Follower Accuracy | > 100 | A/s | |
| Bandwidth (- 3 dB) | DC .. 100 | kHz | |
| General Parameters | |||
| Ambient Operating Temperature | - 10 .. + 70 | C | |
| Ambient Storage Temperature | - 25 .. + 80 | C | |
| Secondary Coil Resistance @ TA = 70C | 32 | ||
| Mass | 73 | g | |
| Electrical Strength | |||
| AC Isolation Test Voltage RMS (50 Hz, 1 min) | 3.52 | kV | 1) |
| Impulse Withstand Voltage (1.2/50 s) | 6.5 | kV | |
| Minimum Creepage Distance (dCp) | 10 | mm | 2) |
| Minimum Clearance Distance (dCl) | 6 | mm | 3) |
| Comparative Tracking Index (CTI) (Group III a) | 275 | ||
| Mechanical Dimensions (mm) | |||
| Primary Through-Hole Diameter | 20 | mm | |
| Mounting Holes | 2 holes 5.4 mm | ||
1912111437_LEM-LT108-S7-SP12_C454773.pdf
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