New product.
LEM CASR 25-NP electronic current transducer, designed for accurate measurement of DC, AC and pulsed currents, with galvanic isolation between the primary and secondary circuits.
The sensor uses Closed-Loop Fluxgate technology, providing accurate and stable measurements with reduced temperature drift of offset and gain.
It is designed for direct mounting on a printed circuit board (PCB), operates with a single 5 V DC power supply and provides an analogue voltage output signal with an accessible reference connection.
This component is suitable for industrial applications, photovoltaic inverters, static converters, power supplies and electronic power control systems.
⚙️ Technical Specifications
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Brand: LEM
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Model: CASR 25-NP
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Visible identification code: 720015
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Type: Electronic current transducer
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Technology: Closed-loop Fluxgate
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Rated primary current: 25 A RMS
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Measurement range: ±85 A
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Measurable currents: AC / DC / pulsed
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Power supply: 5 V DC
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Secondary signal: Analogue voltage output
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Zero-current output voltage: 2.5 V
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Signal range: 2.5 V ± 0.625 V at rated current
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Theoretical sensitivity: 25 mV/A
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Specified accuracy: 0.8%
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Operating temperature: -40 °C to +105 °C
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Mounting: PCB
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Isolation: Galvanic isolation between primary and secondary circuits
- Reference pin for signal configuration
🔧 Main Functions
- DC and AC current measurement.
- Detection of pulsed currents.
- Conversion of current into an analogue voltage signal.
- Galvanic isolation between the power circuit and the measurement circuit.
- Monitoring of electrical parameters in electronic systems.
- Support for power converter regulation and control.
🏭 Applications
According to LEM's official documentation, this transducer is suitable for:
- Photovoltaic inverters and renewable energy systems.
- AC motor drives and servo drives.
- Static converters for DC motors.
- Uninterruptible power supplies (UPS).
- Switching-mode power supplies (SMPS).
- Power supplies for welding applications.
- Industrial power conversion and control systems.
⭐ Advantages
- High-precision Fluxgate technology.
- AC and DC current measurement.
- Low temperature drift of offset and gain.
- Good immunity to rapid voltage changes (dv/dt).
- Single 5 V power supply.
- Compact dimensions for PCB mounting.
- Galvanic isolation between primary and secondary circuits.
📦 Product Condition
New product.
Terminals are visible and appear intact, as shown in the photographs.
Operation has not been tested.
📋 Sale Includes
- 1 LEM CASR 25-NP current transducer.
- Identification code: 720015.
Sold exactly as shown in the photographs.
Summary
LEM CASR 25-NP current transducer rated at 25 A RMS, featuring closed-loop Fluxgate technology, a 5 V DC power supply and an analogue voltage output. PCB-mount component intended for photovoltaic inverters, power converters, power supplies and industrial applications.
