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Specifications
working temperature:
-10℃~+70℃
Current Range:
±70A
Band Width:
100kHz
Bidirectional Current Detection:
Support
Mfr. Part #:
LT58-S7/SP1
Key Attributes
Model Number:
LT58-S7/SP1
Product Description
Product Overview
The LT 58-S7/SP1 is an insulated current sensor utilizing the Hall effect principle for measuring DC, AC, and pulsed currents. It offers high accuracy, excellent linearity, low temperature drift, and a wide frequency bandwidth, making it suitable for various industrial applications. The sensor features a closed-loop (compensated) design and is housed in a UL 94-V0 insulating casing.
Product Attributes
- Brand: LEM
- Origin: Beijing, China
- Certifications: prEN 50178, UL 94-V0
Technical Specifications
| Parameter | Description | Value | Unit |
| Product Name | Current Sensor | LT 58-S7/SP1 | |
| Primary Rated RMS Current (IPN) | Primary rated effective value current | 50 | A |
| Primary Current Measurement Range (IP) | Primary current, measurement range | 0 .. 70 | A |
| Measuring Resistance (RM) | @ 12 V | 0 .. 140 | |
| @ 15 V | 0 .. 200 | ||
| Secondary Rated RMS Current (ISN) | Secondary rated effective value current | 50 | mA |
| Conversion Ratio (KN) | Conversion rate | 1 : 1000 | |
| Supply Voltage (VC) | Power voltage ( 5 %) | 12 .. 15 | V |
| Current Consumption (IC) | Current consumption @ 12V | 28 + IS | mA |
| AC Insulation Test Voltage (Vd) | Effective voltage for AC insulation detection (50 Hz, 1 min) | 6 | kV |
| Overall Accuracy (XG) | Total accuracy @ IPN, TA = 25C | 0.8 | % |
| Linearity (L) | Linearity | < 0.2 | % |
| Zero Offset Current (IO) | Zero offset current @ TA = 25C | 0.2 | mA |
| Magnetic Offset Current (IOM) | Magnetic offset current @ IP = 0, overload through IPN | 0.1 | mA |
| Offset Current Temperature Drift (IOT) | (- 10C .. + 70C) | 0.35 | mA |
| 0.64 | mA | ||
| Response Time (tra) | Reaction time @ 10 % of IP max | < 500 | ns |
| Response Time (tr) | Response time @ 90 % of IP max | < 1 | s |
| di/dt Following Accuracy | di/dt following accuracy | > 100 | A/s |
| Bandwidth (f) | Bandwidth (- 3 dB) | DC .. 100 | kHz |
| Operating Temperature (TA) | Environment operating temperature | - 10 .. + 70 | C |
| Storage Temperature (TS) | Environment storage temperature | - 25 .. + 80 | C |
| Secondary Coil Resistance (RS) | Secondary coil resistance @ TA = 70C | 11 | |
| Mass | Mass | 68 | g |
| Primary Conductor Temperature Limit | Primary conductor temperature not to exceed | 100 | C |
Advantages
- Excellent accuracy
- Good linearity
- Low temperature drift
- Optimal response time
- Wide frequency bandwidth
- No insertion loss
- Strong immunity to interference
- Current overload capability
Applications
- AC variable frequency drives, servo motors
- DC motor traction, static converters
- Battery power supplies
- Uninterruptible Power Supplies (UPS)
- Switch Mode Power Supplies (SMPS)
- Welding machine power supplies
Mechanical Features
- Natural tolerance: 0.5 mm
- Fastening points: 2 holes 5.4 mm
- Primary aperture: 20 mm
- Secondary connection: Clamp terminals
Notes
- IS is positive when flowing in the direction of the arrow on IP.
- Dynamic performance (di/dt and response time) is optimal when the busbar completely fills the primary aperture.
- This module is a standard sensor. For different applications (supply voltage, turns ratio, single-phase measurement, etc.), please contact us.
2504271738_LEM-LT58-S7-SP1_C454769.pdf
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