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LF 310-S
Current Transducer, LF Series, 300A, -500A to 500A, 0.2 %, Closed Loop Output, 12 Vdc to 20 Vdc
Image is for illustrative purposes only. Please refer to product description.

| Manufacturer | LEM |
|---|---|
| Manufacturer Part No | LF 310-SCopy |
| Manufacturer Standard Lead Time | 9 weeks |
| Order Code | 2664244 |
| Product Range | LF310 Series |
| Your Part Number | |
| Technical Datasheet |
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| Quantity | Price |
|---|---|
| 1+ | RM451.470 |
| 5+ | RM436.160 |
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Product Information
| Manufacturer | LEM |
|---|---|
| Manufacturer Part No | LF 310-SCopy |
| Manufacturer Standard Lead Time | 9 weeks |
| Order Code | 2664244 |
| Product Range | LF310 Series |
| Technical Datasheet | |
| Sensor Output Type | Current |
| Supply Voltage DC Min | -11.4V |
| Supply Voltage Range | ± 11.4V to ± 21V |
| Supply Voltage DC Max | 21V |
| Measured Current | AC / DC / Pulsed |
| Accuracy | ± 0.2% |
| Current Measuring Range DC | -500A to 500A |
| Current Measuring Range AC | -500A to 500A |
| Current Sensor Technology | Closed Loop, Hall Effect |
| Primary Current | 300A |
| Response Time | 500ns |
| Accuracy % | 0.2% |
| Secondary Signal Type | 150mA |
| Sensor Mounting | Panel Mount |
| Operating Temperature Min | -40°C |
| Operating Temperature Max | 85°C |
| Product Range | LF310 Series |
| SVHC | No SVHC (25-Jun-2025) |
Product Overview
LF 310-S is a current transducer. It is used for the for the electronic measurement of DC, AC, pulsed current with galvanic separation between the primary and the secondary circuit. Applications include windmill inverters, test and measurement, substations, AC variable speed and servo motor drives, statics converters for DC motors drives, battery supplied applications, uninterruptible power supplies (UPS), switched mode power supplies (SMPS).
- Bipolar and insulated current measurement up to 500A
- Current output, closed loop (compensated) current transducer
- Panel mounting, high accuracy, very low offset drift over temperature
- 100KHz typ frequency bandwidth at (RM = 50 ohm, -3dB)
- Supply voltage range from ±11.4V to ±21V
- 0.1% typ sensitivity error, 0.25A typ secondary current
- 0.5µs typ reaction time at 10% of IPN
- Linearity error is 0.05% of IPN typ
- Ambient temperature range from -40C to 85°C
- High accuracy and very low offset drift over temperature
Technical Specifications
| Sensor Output Type | Current |
|---|---|
| Supply Voltage Range | ± 11.4V to ± 21V |
| Measured Current | AC / DC / Pulsed |
| Current Measuring Range DC | -500A to 500A |
| Current Sensor Technology | Closed Loop, Hall Effect |
| Response Time | 500ns |
| Secondary Signal Type | 150mA |
| Operating Temperature Min | -40°C |
| Product Range | LF310 Series |
| Supply Voltage DC Min | -11.4V |
|---|---|
| Supply Voltage DC Max | 21V |
| Accuracy | ± 0.2% |
| Current Measuring Range AC | -500A to 500A |
| Primary Current | 300A |
| Accuracy % | 0.2% |
| Sensor Mounting | Panel Mount |
| Operating Temperature Max | 85°C |
| SVHC | No SVHC (25-Jun-2025) |
Technical Docs (3)
Legislation and Environmental
| Country of Origin: Country in which last significant manufacturing process was carried outCountry of Origin: | Bulgaria Country in which last significant manufacturing process was carried out |
|---|---|
| Tariff No: | 90303370 |
| US ECCN: | EAR99 |
| EU ECCN: | NLR |
| RoHS Compliant: | Yes RoHS |
| RoHS Phthalates Compliant: | Yes RoHS |
| SVHC: | No SVHC (25-Jun-2025) |
| Download Product Compliance Certificate | Product Compliance Certificate |
| Weight (kg): | .107 |
