LTC
Modular and compact current sensors for traction applications
LTC - Traction current sensors
The LTC current transducers are meticulously optimized for the electronic measurement of DC, AC, and pulse currents while maintaining galvanic isolation between the primary and secondary circuits. These sensors are specifically engineered for traction applications, ensuring efficient operation in both fixed installations and onboard trains.
The LTC railway current sensors are modular and compact sensors that offer flexibility in their mounting. They can be installed either horizontally or vertically, and the feet can be mounted in three different ways, creating three possible vertical mountings. Additionally, the busbar can be mounted in two different ways, catering to customer preferences.
The LTC family operates based on the closed-loop Hall effect sensor principle, which guarantees excellent accuracy and rapid response times. This technology makes these sensors reliable and well-suited for the demanding requirements of railway applications.
LTC – Features and benefits
Features
- Closed loop (compensated) current transducer using the Hall effect
- Insulating plastic case recognized according to UL 94-V0
- Compact
- Modular Design allowing horizontal or vertical mounting
- Available with or without busbar integrated &/or feet integrated or can be delivered separately
- Feet can be mounted in 3 different ways to create 3 possible vertical mountings
- Busbar can be mounted in two ways according to customer preference
- AC&DC isolated current measurements from 200 to 1000 ARMS
Main characteristics
- Power supply +/- 15 to 24 V
- Operating temperature range: -40°C to +85°C
- Shield available as standard
- Current output
- 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 LTC sensor family is purposefully designed for traction and railway applications, finding use in a range of systems, including:
- Single or three phase inverters
- Propulsion and braking choppers
- Propulsion converters
- Auxiliary converters
- Battery chargers
LEM LTC – Download & Technical Characteristic
| Product | Document | Primary nominal RMS voltage | Supply Voltage range | Op. Temperature |
|---|---|---|---|---|
| LTC 200-S | 200 A | 24 to 15 | -40 to 70 °C | |
| LTC 200-S/SP1 | 200 A | 24 to 15 | -40 to 70 °C | |
| LTC 350-S | Datasheet 3D |
350 A | 24 to 15 | -40 to 85 °C |
| LTC 350-SF | Datasheet 3D |
350 A | 24 to 15 | -40 to 85 °C |
| LTC 350-T | Datasheet 3D |
350 A | 24 to 15 | -40 to 85°C |
| LTC 350-TF | Datasheet | 350 A | 24 to 15 | -40 to 85°C |
| LTC 400-S | Datasheet 3D |
400 A | 24 to 15 | -40 to 85 °C |
| LTC 400-SF | Datasheet 3D |
400 A | 24 to 15 | -40 to 85 °C |
| LTC 600-S | Datasheet 3D |
500 A | 24 to 15 | -40 to 85 °C |
| LTC 600-SF | Datasheet 3D |
500 A | 24 to 15 | -40 to 85°C |
| LTC 600-T | Datasheet 3D |
500 A | 24 to 15 | -40 to 85°C |
| LTC 600-TF | Datasheet | 500 A | 24 to 15 | -40 to 85 °C |
| LTC 600-TF/SP19 | Datasheet 3D |
500 A | 24 to 15 | -40 to 85 °C |
| LTC 500-S | Datasheet 3D |
500 A | 24 to 15 | -40 to 85 °C |
| LTC 500-SF | Datasheet 3D |
500 A | 24 to 15 | -40 to 85°C |
| LTC 500-SFC/SP2 | Datasheet 3D |
500 A | 24 to 15 | -40 to 85°C |
| LTC 500-SF/SP7 | Datasheet 3D |
500 A | 24 to 15 | -40 to 85 °C |
| LTC 500-T | Datasheet 3D |
500 A | 24 to 15 | -40 to 85 °C |
| LTC 500-TF | Datasheet 3D |
500 A | 24 to 15 | -40 to 85 °C |
| LTC 600-S/SP15 | Datasheet 3D |
600 A | 24 to 15 | -40 to 85°C |
| LTC 600-S/SP17 | Datasheet | 600 A | 24 to 15 | -40 to 85°C |
| LTC 600-T/SP16 | Datasheet 3D |
600 A | 24 to 15 | -40 to 85 °C |
| LTC 1000-S | Datasheet 3D |
1000 A | 24 to 15 | -40 to 85 °C |
| LTC 1000-SF | Datasheet 3D |
1000 A | 24 to 15 | -40 to 85 °C |
| LTC 1000-SF/SP14 | Datasheet | 1000 A | 24 to 15 | -40 to 85°C |
| LTC 1000-SF/SP33 | Datasheet | 1000 A | 24 to 15 | -40 to 85°C |
| LTC 1000-SF/SP34 | Datasheet 3D |
1000 A | 24 to 15 | -40 to 85 °C |
| LTC 1000-SF/SP4 | Datasheet 3D |
1000 A | 24 to 15 | -40 to 85 °C |
| LTC 1000-S/SP1 | Datasheet 3D |
1000 A | 24 to 15 | -40 to 85 °C |
| LTC 1000-S/SP28 | Datasheet 3D |
1000 A | 24 to 15 | -40 to 85 °C |
| LTC 1000-T | Datasheet 3D |
1000 A | 24 to 15 | -40 to 85 °C |
| LTC 1000-TF | Datasheet 3D |
1000 A | 24 to 15 | -40 to 85 °C |
| LTC 1000-SF/SP26 | Datasheet 3D |
1300 A | 24 to 15 | -40 to 70 °C |
LTC Sensors – ASK FOR SAMPLES / QUOTATIONS
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