<
>
Specifications
working temperature:
-40℃~+85℃
Current Range:
±420A
Voltage - Supply:
-15V~-12V;12V~15V
Band Width:
100kHz
Bidirectional Current Detection:
Support
Mfr. Part #:
LF205-S
Key Attributes
Model Number:
LF205-S
Product Description
Product Overview
The LEM LF 205-S is a closed-loop (compensated) current transducer utilizing Hall effect technology. It is designed for the electronic measurement of DC, AC, and pulsed currents with galvanic separation between the primary and secondary circuits. Key advantages include excellent accuracy, very good linearity, low temperature drift, optimized response time, and a wide frequency bandwidth, making it suitable for industrial applications such as AC variable speed drives, servo motor drives, static converters, battery-supplied applications, UPS, SMPS, and welding power supplies.
Product Attributes
- Brand: LEM
- Origin: Switzerland
- Material: Insulating plastic case recognized according to UL 94-V0
- Certifications: UL 94-V0, EN 50178, IEC 61010-1
Technical Specifications
| Specification | Value |
| Primary Nominal RMS Current (IP N) | 200 A |
| Primary Current Measuring Range | 0 ... 420 A |
| Secondary Nominal RMS Current (IS N) | 100 mA |
| Turns Ratio (NP/NS) | 1 : 2000 |
| Supply Voltage (UC) | 12 ... 15 V |
| Current Consumption (@ 15 V) | 17 + IS mA |
| Total Error (@ IP N, TA = 25 C) | 0.5 % |
| Linearity Error | < 0.1 % |
| Offset Current (@ IP = 0, TA = 25 C) | 0.2 mA |
| Magnetic Offset Current (after 3x IP N overload) | 0.1 mA |
| Temperature Variation of IO | 0.12 to 0.4 mA |
| Delay Time to 10% of IP N | < 500 ns |
| Delay Time to 90% of IP N | < 1 s |
| Frequency Bandwidth (3 dB) | DC ... 100 kHz |
| Ambient Operating Temperature (TA) | 40 ... +85 C |
| Ambient Storage Temperature (TA st) | 40 ... +90 C |
| Mass | 78 g |
| RMS Voltage for AC Insulation Test (Ud RMS) | 3.5 kV |
| Impulse Withstand Voltage (UNi) | 8.8 kV |
| Partial Discharge Extinction Voltage (Ue) | > 2 kV |
| Creepage Distance (dCp) | 11 mm |
| Clearance (dCI) | 10.2 mm |
| CTI | 175 |
| Primary Through-hole Diameter | 15.5 mm |
2410311332_LEM-LF205-S_C454793.pdf
Request A Quote
Please Use Our Online Inquiry Contact Form Below If You Have Any Questions, Our Team Will Get Back To You As Soon As Possible
