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Specifications
working temperature:
-10℃~+70℃
Current Range:
±70A
Voltage - Supply:
-15V~-12V;12V~15V
Band Width:
100kHz
Bidirectional Current Detection:
Support
Mfr. Part #:
LT58-S7
Key Attributes
Model Number:
LT58-S7
Product Description
Product Overview
The LT 58-S7 is an insulated current sensor designed for measuring DC, AC, and pulse currents. It offers high accuracy, good linearity, low temperature drift, fast response time, wide bandwidth, and immunity to external magnetic fields. Its applications include variable speed drives, servo motors, DC motor traction, battery power supplies, UPS, SMPS, and welding power supplies.
Product Attributes
- Brand: LEM
- Certifications: EN 50178, UL 94-V0 (insulating housing)
- Origin: China (implied by Shanghai Jiaren mention)
Technical Specifications
| Parameter | Value | Unit | Notes |
| Electrical Parameters | |||
| Primary Rated RMS Current (IPN) | 50 | A | |
| Primary Current Measuring Range (IPM) | 0 .. 70 | A | |
| Secondary Rated RMS Current (ISN) | 50 | mA | |
| Conversion Ratio (KN) | 1 : 1000 | ||
| Supply Voltage (VC) | 12 .. 15 | V | ( 5 %) |
| Current Consumption (IC) | 28 (@ 12V) + IS | mA | |
| Accuracy - Dynamic Parameters | |||
| Overall Accuracy @ IPN, TA = 25C (XG) | 0.8 | % | |
| Linearity (L) | < 0.2 | % | Typ |
| Voltage Output Offset @ IP = 0, TA = 25C (IOE) | 0.20 | mA | |
| Magnetic Offset Current @ IP = 0, overload 1 x IPN (IOM) | 0.10 | mA | 1) |
| Temperature Drift of IO (-10C .. +70C) (IOT) | 0.35 .. 0.64 | mA | |
| Response Time @ 10% of IPN (tra) | < 500 | ns | |
| Response Time @ 90% of IPN (tr) | < 1 | s | 2) |
| di/dt Following Accuracy | > 100 | A/s | |
| Bandwidth (- 3 dB) (BW) | DC .. 100 | kHz | |
| General Parameters | |||
| Ambient Operating Temperature (TA) | - 10 .. + 70 | C | |
| Ambient Storage Temperature (TS) | - 25 .. + 80 | C | |
| Secondary Coil Resistance @ TA = 70C (RS) | 11 | ||
| Mass (m) | 64 | g | |
| Electrical Isolation Performance | |||
| AC Isolation Test Voltage RMS (Vd) | 3.52 | kV | 1), 50 Hz, 1 min |
| Impulse Withstand Voltage (Vw) | 6.5 | kV | 1.2/50 s |
| Creepage Distance (dCp) | 10 | mm | 2) |
| Electrical Clearance (dCI) | 6 | mm | 3) |
| Comparative Tracking Index (CTI) | 275 | (group IIIa) | |
| Measurement Resistance (RM) | |||
| RM min with 12 V @ 50 A | 0 | ||
| RM max with 12 V @ 70 A | 140 | ||
| RM min with 15 V @ 50 A | 0 | ||
| RM max with 15 V @ 70 A | 200 | ||
1912111437_LEM-LT58-S7_C454764.pdf
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