HO

High performance, cost effective, contactless current transducers for DC, AC and pulse currents measurements

HO - Industry Current Sensors

The HO current transducer family, encompassing sensors from the HO-P, HO-S, HO-NP, HO-NSMPR, and HO-NPPR Series, is meticulously designed for the precise measurement of DC, AC, and pulse currents while ensuring galvanic isolation between the primary and secondary circuits. Key features of the HO family include:

  • Wide Current Measurement Range: The HO sensors cover a current measurement range from 6 ARMS to 250 ARMS, catering to diverse current measurement needs.
  • Variety in Mounting Options: While most of the HO family is designed for exclusive PCB mounting (through hole or surface mounting), the HO-S series is an exception, specifically designed for panel mounting via its 15x8 mm large aperture.
  • Short Response Time and High Accuracy: The entire HO family offers short response times, low offset and gain drift, and high accuracy, ensuring reliable current measurements.
  • Multirange Features: The HO-NP Series provides multirange capabilities, allowing for small current measurements from 10 to 150 A nominal, with a configuration of four primary pins for each model.
  • Intelligent and Programmable Sensors: The HO-NSMPR and HO-NPPR series stand out as intelligent and interactive current transducers. Users can program these sensors, offering features such as programmable ranges (8 ARMS, 15 ARMS, 25 ARMS), overcurrent detection with programmable thresholds, programmable response time, and up to four programmable internal reference voltages.
  • Open-Loop Hall Effect Technology: The HO sensors operate based on open-loop Hall effect sensor technology, ensuring accuracy and reliability in industrial applications where precise current measurements are crucial.

Overall, the diverse features and options within the HO family make it suitable for a wide range of industrial scenarios, meeting various current measurement requirements.

HO – Features

Features

The HO family addresses the following key features:

  • Hall effect measuring principle
  • Galvanic separation between primary and secondary circuit
  • Insulated test voltage 4300 V
  • Low power consumption
  • Single power supply +5V
  • Fixed offset & sensitivity
  • Over-current detect 2.63 x Ipn to 2.93 x Ipn (peak value) - depending on parts
  • Memory check
  • Voltage output

Moreover, the HO-NSM and HO-NP series introduce additional features, including a multirange current transducer achieved through a PCB pattern layout and an exceptionally low profile of 12 mm.

The HO-NPPR intelligent and programmable functions offer distinctive features, including:

  • Multirange current transducer through PCB pattern lay-out or ASIC programming
  • Extremely low profile 12 mm
  • Adjustable offset & sensitivity
  • Adjustable over current detect (default: 2.9 x Ipn peak value)
  • Adjustable response time and noise level
  • Vref pin with adjustable REF OUT & REF IN modes
  • Standby mode with reduced consumption
  • Current range programming
  • Vref can be switched off

Finally, HO-S also has its specific features, particularly concerning its mounting:

  • Compact design for panel mounting
  • Connection mating with JST: housing PHR-5, contact SPH-00xT
  • Repositionable mounting foot

Benefits and applications

HO Series

Main characteristics

  • Small size and space saving
  • Only one design for primary current range
  • High immunity to external interference
  • 8 mm creepage / clearance
  • High insulation capability
  • Fast response

Typical applications

The HO sensor family is crafted for industrial applications and can be efficiently employed across various systems, including:

  • AC variable speed and servo motor drives
  • Static converters for DC motor drives
  • Battery supplied applications
  • Uninterruptible Power Supplies (UPS)
  • Switched Mode Power Supplies (SMPS)
  • Power supplies for welding applications
  • Combiner box
  • Solar inverter on DC side of the inverter (MPPT)
  • Renewable Energy (Solar and Wind)

LEM HO – Download & Technical Characteristic

Product Document Primary nominal RMS voltage Mounting Op. Temperature
HO 6-P Datasheet
3D
6 A PCB -40 to 105 °C
HO 6-P/SP33 Datasheet
3D
6 A PCB -40 to 105 °C
HO 8-NP/SP33-1000 Datasheet
3D
8 A PCB -40 to 105 °C
HO 8-NP-0000 Datasheet
3D
8 A PCB -40 to 105 °C
HO 8-NSM/SP33-1000 Datasheet
3D
8 A PCB -40 to 105 °C
HO 8-NSM-0000 Datasheet
3D
8 A PCB -40 to 105 °C
HO 10-P Datasheet
3D
10 A PCB -40 to 105 °C
HO 10-P/SP33 Datasheet
3D
10 A PCB -40 to 105 °C
HO 15-NP/SP33-1000 Datasheet
3D
15 A PCB -40 to 105 °C
HO 15-NP-0000 Datasheet
3D
15 A PCB -40 to 105 °C
HO 15-NSM-0000 Datasheet
3D
15 A PCB -40 to 105 °C
HO 25-NP/SP33-1000 Datasheet
3D
25 A PCB -40 to 105 °C
HO 25-NP-0000 Datasheet
3D
25 A PCB -40 to 105 °C
HO 25-NPPR Datasheet
3D
25 A PCB -40 to 105 °C
HO 25-NSM/SP33-1000 Datasheet
3D
25 A PCB -40 to 105 °C
HO 25-NSM-0000 Datasheet
3D
25 A PCB -40 to 105 °C
HO 25-P Datasheet
3D
25 A PCB -40 to 105 °C
HO 25-P/SP33 Datasheet
3D
25 A PCB -40 to 105 °C
HO 40-NP/SP33-1106 Datasheet
3D
40 A PCB -40 to 105 °C
HO 40-NP-0100 Datasheet
3D
40 A PCB -40 to 105 °C
HO 50-S/SP33-1106 Datasheet
3D
50 A On primary fastening,
Panel
-40 to 105 °C
HO 50-S-0100 Datasheet
3D
50 A On primary fastening,
Panel
-40 to 105 °C
HO 60-NP-0100 Datasheet
3D
60 A PCB -40 to 105 °C
HO 60-P-0100 Datasheet
3D
60 A PCB -40 to 105 °C
HO 100-P-0100 Datasheet
3D
100 A PCB -40 to 105 °C
HO 100-S/SP33-1106 Datasheet
3D
100 A On primary fastening,
Panel
-40 to 105 °C
HO 100-S-0100 Datasheet 100 A On primary fastening,
Panel
-40 to 105 °C
HO 120-NP/SP33-1106 Datasheet
3D
120 A PCB -40 to 105 °C
HO 120-NP-0100 Datasheet
3D
120 A PCB -40 to 105 °C
HO 120-P-0100 Datasheet
3D
120 A PCB -40 to 105 °C
HO 128-NP-0100 Datasheet 128 A PCB -40 to 105 °C
HO 150-NP-0100 Datasheet
3D
150 A PCB -40 to 105 °C
HO 150-P-0100 Datasheet
3D
150 A PCB -40 to 105 °C
HO 150-S/SP33-1106 Datasheet
3D
150 A On primary fastening,
Panel
-40 to 105 °C
HO 150-S-0100 Datasheet
3D
150 A On primary fastening,
Panel
-40 to 105 °C
HO 180-P-0100 Datasheet
3D
180 A PCB -40 to 105 °C
HO 200-S/SP33-1106 Datasheet
3D
200 A On primary fastening,
Panel
-40 to 105 °C
HO 200-S-0100 Datasheet
3D
200 A On primary fastening,
Panel
-40 to 105 °C
HO 240-P-0100 Datasheet 240 A PCB -40 to 105 °C
HO 240-S-0100 Datasheet
3D
240 A On primary fastening,
Panel
-40 to 105 °C
HO 250-P-0100 Datasheet
3D
250 A PCB -40 to 105 °C
HO 250-S/SP33-1106 Datasheet
3D
250 A On primary fastening,
Panel
-40 to 105 °C
HO 250-S-0100 Datasheet
3D
250 A On primary fastening,
Panel
-40 to 105 °C

HO Sensors – ASK FOR SAMPLES / QUOTATIONS

Looking to receive samples or a quotation? Please click on the contact button below and provide us with the information you need on this product series. Our sales team will get back to you shortly.

Contact Us