LF 205, 305, 505, 1005, 2005 - CURRENT SENSORS
The LF 205, 305, 505, 1005, and 2005 current sensor series has been meticulously designed to cater to industrial and railway applications. These sensors are optimized for the precise measurement of DC, AC, and pulsed currents while ensuring galvanic isolation between the primary circuit and the secondary circuit.
The LF electronic parts feature a compact design and are characterized by their exceptional precision and rapid response times.
While LF 205, 305, 505, 1005, and 2005 can all be panel-mounted in various configurations, LF 205 offers the additional option of PCB mounting, allowing for flexibility in integration.
These five product series feature different aperture diameters for the primary conductor crossing. LF 205 has a 15.5 mm diameter aperture, LF 305 offers a 20.1 mm diameter aperture, LF 505 provides a 30.2 mm diameter aperture, LF 1005 offers a choice between a 40.5 x 13 mm or 38 mm diameter aperture, and LF 2005 presents a 60.5 x 20.5 mm or 27 mm diameter aperture.
These current sensors rely on closed-loop Hall effect technology, which enhances their accuracy and reliability in industrial and railway applications, making them well-suited for a variety of contexts where precise current measurements are crucial.
LF 205, 305, 505, 1005, 2005 – Features and benefits
Main characterisrtics
- Closed loop (compensated) current sensor using the hall effect
- Isolated plastic case recognized according to UL 94-V0
Benefits
- Excellent accuracy
- Very good linearity
- Low temperature drift
- Optimized response time
- Wide frequency bandwidth
- No insertion losses
- High immunity to external interference
- Current overload capability
Typical applications
The LF 205, 305, 505, 1005, and 2005 current sensors are extensively utilized in the industrial sector and the railway sector. In industrial applications, they find application in various scenarios, including:
- AC variable speed drives and servo motor drives
- Static converters for DC motor drives
- Battery supplied applications
- Uninterruptible Power Supplies (UPS)
- Switched Mode Power Supplies (SPMS)
- Power supplies for welding applications
In the railway area, the LF current transducers can be used in fixed installations or trackside as well as onboard trains (traction). In this specific domain, it is also common to use these sensors in the following applications:
- Single or three phase inverters
- Propulsion and braking choppers
- Propulsion converters
- Auxiliary converters
- Battery chargers
LEM LF 205, 305, 505, 1005, 2005 – Download & Technical Characteristic
| Product | Check stock | Document | Primary nominal RMS current | Supply Voltage range | Op. Temperature |
|---|---|---|---|---|---|
| LF 205-S/SP3 | Datasheet 3D | 100 A | 12 to 15 | -40 to 85 °C | |
| LF 205-S/SP5 | Datasheet 3D | 100 A | 12 to 15 | -40 to 85 °C | |
| LF 205-S | Datasheet 3D | 200 A | 12 to 15 | -40 to 85 °C | |
| LF 205-S/SP1 | Datasheet 3D | 200 A | 12 to 15 | -40 to 85 °C | |
| LF 205-P | Datasheet 3D | 200 A | 12 to 15 | -40 to 85 °C | |
| LF 205-P/SP1 | Datasheet 3D | 200 A | 12 to 15 | -40 to 85 °C | |
| LF 305-S/SP7 | Datasheet | 250 A | 15 to 15 | -40 to 85 °C | |
| LF 305-S | Datasheet 3D | 300 A | 12 to 20 | -40 to 85 °C | |
| LF 305-S/SP10 | Datasheet 3D | 300 A | 12 to 20 | -40 to 85 °C | |
| LF 305-S/SP16 | Datasheet 3D | 300 A | 24 to 24 | -10 to 70 °C | |
| LF 505-S | Datasheet 3D | 500 A | 15 to 24 | -40 to 70 °C | |
| LF 505-S/SP15 | Datasheet 3D | 500 A | 15 to 24 | -10 to 70 °C | |
| LF 505-S/SP22 | Datasheet 3D | 500 A | 15 to 24 | -40 to 70 °C | |
| LF 505-S/SP23 | Datasheet 3D | 500 A | 24 to 24 | -40 to 85 °C | |
| LF 505-S/SP39 | Datasheet 3D | 500 A | 15 to 24 | -10 to 70 °C | |
| LF 505-S/SP40 | Datasheet 3D | 500 A | 15 to 24 | -40 to 70 °C | |
| LF 1005-S | Datasheet 3D | 1000 A | 24 to 24 | -40 to 85 °C | |
| LF 1005-S/SP14 | Datasheet 3D | 1000 A | 24 to 24 | -40 to 85 °C | |
| LF 1005-S/SP22 | Datasheet 3D | 1000 A | 15 to 24 | -40 to 85 °C | |
| LF 1005-S/SP33 | Datasheet 3D | 1000 A | 24 to 24 | -40 to 85 °C | |
| LF 2005-S/SP9 | Datasheet 3D | 1000 A | 15 to 24 | -40 to 85 °C | |
| LF 2005-S | Datasheet 3D | 2000 A | 15 to 24 | -40 to 85 °C | |
| LF 2005-S/SP1 | Datasheet 3D | 2000 A | 15 to 24 | -40 to 85 °C | |
| LF 2005-S/SP3 | Datasheet 3D | 2000 A | 15 to 24 | -40 to 70°C | |
| LF 2005-S/SP8 | Datasheet 3D | 2000 A | 15 to 24 | -40 to 85 °C | |
| LF 2005-S/SP11 | Datasheet 3D | 2000 A | 15 to 24 | -40 to 85 °C | |
| LF 2005-S/SP13 | Datasheet 3D | 2000 A | 15 to 24 | -40 to 80 °C | |
| LF 2005-S/SP23 | Datasheet 3D | 2000 A | 15 to 24 | -25 to 70 °C |
LF 205, 305, 505, 1005, 2005 sensors – ASK FOR SAMPLES / QUOTATIONS
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