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Specifications
working temperature:
-10℃~+70℃
Current Range:
±150A
Band Width:
100kHz
Bidirectional Current Detection:
Support
Mfr. Part #:
LT108-S7/SP1
Key Attributes
Model Number:
LT108-S7/SP1
Product Description
Product Overview
The LEM Current Transducer LT 108-S7/SP1 is a closed-loop Hall effect transducer designed for the electronic measurement of DC, AC, and pulsed currents with galvanic isolation. It offers excellent accuracy, very good linearity, low temperature drift, optimized response time, and a wide frequency bandwidth, making it suitable for various industrial applications including AC and DC motor drives, UPS, SMPS, and welding power supplies.
Product Attributes
- Brand: LEM
- Model: LT 108-S7/SP1
- Case Material: Isolated plastic case recognized according to UL 94-V0
- Secondary Connection: Socket JTB450-00
- Certifications: EN 50178, IEC 61010-1, UL 94-V0
- Application Domain: Industrial
Technical Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Primary nominal current rms (IPN) | 100 | A | |
| Primary current, measuring range | 0 .. 150 | A | |
| Measuring resistance (RM) with 12 V | 0 .. 136 | @ 100 A max | |
| Measuring resistance (RM) with 12 V | 0 .. 74 | @ 150 A max | |
| Measuring resistance (RM) with 15 V | 0 .. 175 | @ 100 A max | |
| Measuring resistance (RM) with 15 V | 0 .. 106 | @ 150 A max | |
| Secondary nominal current rms (ISN) | 50 | mA | |
| Conversion ratio (KN) | 1 : 2000 | ||
| Supply voltage (VC) ( 5 %) | 12 .. 15 | V | |
| Current consumption (IC) | 20 (+ IS) | mA | (@ 15 V) |
| Overall accuracy @ IPN, TA = 25C (XG) | 0.6 | % | |
| Linearity error (L) | < 0.1 | % | Typ |
| Electrical offset current (IOE) @ IP = 0, TA = 25C | 0.15 | mA | |
| Magnetic offset current (IOM) @ IP = 0, and specified RM, after an overload of 3 x IPN | 0.10 | mA | 1) |
| Temperature variation of IO (IOT) - 10C .. + 70C | 0.20 / 0.64 | mA | Typ / Max |
| Reaction time to 10 % of IPN step (tra) | < 500 | ns | |
| Response time to 90 % of IPN step (tr) | < 1 | s | 2) |
| di/dt accurately followed (di/dt) | > 100 | A/s | |
| Frequency bandwidth (- 3 dB) (BW) | DC .. 100 | kHz | |
| Ambient operating temperature (TA) | - 10 .. + 70 | C | |
| Ambient storage temperature (TS) | - 25 .. + 80 | C | |
| Secondary coil resistance @ TA = 70C (RS) | 32 | ||
| Mass | 76 | g | |
| Rms voltage for AC insulation test (Vd) 50 Hz, 1 min | 3.52 | kV | 1) |
| Impulse withstand voltage (Vw) 1.2/50 s | 6.5 | kV | |
| Creepage distance (dCp) 2) | 10 | mm | |
| Clearance (dCI) 2) | 6 | mm | |
| Comparative Tracking Index (CTI) (group IIIa) | 275 |
2410121805_LEM-LT108-S7-SP1_C454766.pdf
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