AHR 1000 B10 , AHR1000B10

AHR 1000 B10 Split-Core True-RMS AC/DC Current Transducer

AHR 1000 B10 Product Overview

The AHR 1000 B10 is a compact, split-core AC/DC current transducer from LEM's AHR series, designed for the electronic measurement of DC and distorted AC waveform currents with galvanic isolation between the primary and secondary circuits . It combines Hall-effect technology and signal conditioning in a single housing, providing a True-RMS voltage output for direct integration with control and monitoring systems .

Rated for 1000 A True-RMS nominal with a measuring range of ±2000 A peak, it outputs a 0 to 10 V DC voltage signal proportional to the True-RMS value of the measured current . Accuracy is ±1% of the nominal value with better than ±1.0% linearity . Response time to 90% of rated current is <150 ms, and frequency bandwidth is DC to 6 kHz . Supply voltage range is 20 to 50 V DC with a maximum supply current of 30 mA plus the output current . Insulation test voltage is 5.8 kV RMS (50Hz, 1 minute) with 11.9 mm creepage and clearance distances . The 104 x 40 mm rectangular aperture accommodates busbars for non-contact measurement . Operating temperature range is -40°C to +70°C . Mass is approximately 260 g with dimensions of 174 x 86 x 54.1 mm . Mounting is panel mount or busbar mount with UL 94-V0 recognized housing . Product status is Active.

AHR 1000 B10 Key Specifications

Rated current (IPN): 1000 A True-RMS
Measuring range (IPM): ±2000 A peak
Output signal: 0 to 10 V DC (True-RMS, ratiometric)
Supply voltage: 20 to 50 V DC
Accuracy: ±1%
Linearity: <±1%
Response time: <150 ms
Frequency bandwidth: DC, 20 Hz to 6 kHz
Insulation test voltage: 5.8 kV RMS (50Hz, 1 minute)
Creepage and clearance: 11.9 mm
Aperture: 104 x 40 mm
Current consumption: 30 mA + I_OUT
Operating temperature: -40°C to +70°C
Mass: 260 g
Mounting: Panel / Busbar mount
Housing: UL 94-V0
Standards: EN 50178, IEC 61010-1, UL 508, CE, RoHS compliant

AHR 1000 B10 Key Advantages

The AHR 1000 B10 features a split-core (hinged) design that simplifies installation and enables retrofitting in existing systems without interrupting the primary circuit . The True-RMS output provides accurate measurement of distorted AC waveforms commonly found in VFD and SCR-controlled loads . The 104 x 40 mm aperture accommodates busbars for non-contact measurement . The 5.8 kV insulation ensures safe operation in high-voltage environments. The wide -40°C to +70°C operating temperature range and panel-mount design support demanding industrial installations . The insulating plastic case is recognized according to UL 94-V0 . The compact size offers more than 50% space savings compared to existing current transformers . LEM's five-year guarantee provides additional confidence.

AHR 1000 B10 Typical Applications

AC power supplies or motors for True-RMS current sensing to monitor power supply or motor input power 
VFD controlled loads for output current monitoring to indicate how the motor and attached load are operating 
SCRs or switch-mode rectifiers for accurate measurement of output current 
Renewable energy installations or backup batteries for continuous condition monitoring allowing automatic failure detection 
Automation, smart grid, and industrial power monitoring applications 

AHR 1000 B10 Why Choose the AHR 1000 B10?

The AHR 1000 B10 combines a 1000 A rating, ±2000 A peak range, ±1% accuracy, and True-RMS 0 to 10 V output in a compact split-core package. Manufactured by LEM, a global leader in electrical measurement, it delivers reliable, accurate current sensing for industrial and energy applications . The integrated signal conditioning and True-RMS output simplify system integration, while the split-core design and large 104 x 40 mm aperture enable easy installation without system downtime. The product is active and available for new designs.