LTC600-SFC/SP1 – LEM High-Accuracy Closed-Loop Hall-Effect Current Sensor

LTC600-SFC/SP1 Sense with Precision, Empower the Future

In fast-growing fields such as industrial automation, traction drives, and renewable energy, accurate and reliable current measurement is the cornerstone of a stable system. The LTC600-SFC/SP1 is a high-performance current sensor from LEM Group. Using closed-loop Hall-effect technology, it achieves high-precision electronic measurement of DC, AC, and pulse currents, providing reliable data support for your power system and enabling intelligent management of every amp.

LTC600-SFC/SP1 Core Advantages: Excellence Built on Quality

Closed-Loop Hall Technology – Precision as Standard

Utilising closed-loop (compensated) Hall-effect current sensing, the sensor provides full galvanic isolation between the primary high-power circuit and secondary low-power electronics, ensuring the safety of both personnel and equipment.

Wide Measuring Range – Withstand Transient Surges with Ease

Rated primary current IPN = 500 A, measuring range from 0 to ±1500 A. It easily handles various transient overload conditions such as motor starting and load surges.

IPN = 500 A – rated primary current

Measuring range: ±1500 A – broad capability

Isolation test voltage: 13.4 kV (RMS) / 50 Hz / 1 min – ample safety margin

Accurate Drive, Stable Output

Wide supply voltage from ±15 V to ±24 V, accommodating various system power rails. Rated secondary output of 100 mA for seamless connection to measuring and protection devices.

Key Performance Specs – Hard Data

Accuracy: ±0.7% @ IPN, TA = 25°C – consistently accurate

Total accuracy: ±1.6% over full temperature range (-40°C to +85°C) – stable everywhere

Linearity: < 0.1% – excellent linearity

Offset current: ≤ ±0.5 mA @ IP = 0 – minimal zero drift

Response time: < 1 μs @ 90% IPN – microsecond fast response

Frequency bandwidth: DC ~ 100 kHz – wideband coverage

Thermal drift: < ±1 mA – low drift, stable across temperature

LEM Global Quality – Accurate and Long-lasting

As a world-leading electrical sensor brand, LEM ensures reliability with rigorous manufacturing processes and factory calibration across the full temperature range. The sensor operates dependably in extreme environments from -40°C to +85°C.

LTC600-SFC/SP1 Product Highlights: More Than Just Precision

LTC600-SFC/SP1 Flexible Selection and Installation

The LTC600-SFC/SP1 features a spacious primary aperture (42 mm × 12 mm oval hole or 42 mm diameter round hole), accommodating various busbars and round conductors. No complicated wiring is required:

Secondary wiring: Choose 4xM5 threaded studs or 4xFaston quick-connect terminals (6.3 × 0.8 mm) – ideal for industrial applications

Mounting options: Multiple mounting methods and accessory combinations to meet specific needs

LTC600-SFC/SP1 Typical Applications

The LTC600-SFC/SP1 is widely used in industrial automation, traction, and energy management:

Traction systems – railway locomotives, urban rail transit, and other high-power traction applications

Servo drives & AC variable frequency drives – key components for high dynamic response and precise control

DC motor drive static converters – accurately measure drive current, improve system efficiency

Uninterruptible power supplies (UPS) – precisely monitor battery charging and inverter current, ensure power security

Switched-mode power supplies (SMPS) – wide frequency response captures current waveforms during high-frequency switching

Battery-powered equipment – low power consumption, high precision – ideal for battery management systems

Renewable energy equipment – accurate current measurement for solar, wind, and energy storage systems

Welding power supplies – handle large transient current loads, ensure welding quality

LTC600-SFC/SP1 Technical Specifications

Parameter	Value
Brand	LEM (LEM Group)
Model	LTC600-SFC/SP1
Series	LTC600-1000 traction class modular current sensor
Primary rated current (IPN)	500 A
Primary measuring range (IP)	0 ~ ±1500 A
Rated secondary current (ISN)	100 mA
Turns ratio (KN)	1 : 5000
Supply voltage	±15 V ~ ±24 V DC (±5%, bipolar)
Accuracy @ 25°C	±0.7%
Accuracy @ -40°C ~ +85°C	±1.6%
Linearity	< 0.1%
Offset current	≤ ±0.5 mA
Offset thermal drift	< ±1 mA
Response time @ 90% IPN	< 1 μs
Frequency bandwidth (-1 dB)	DC ~ 100 kHz
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