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                                                                                                  1. Home
                                                                                                  2. Sensors & Transducers
                                                                                                  3. Sensors
                                                                                                  4. Current Sensors & Transducers
                                                                                                  5. Current Sensors
                                                                                                  Print Page

                                                                                                  LKSR 25-NP

                                                                                                  Current Transducer, LKSR Series, 25 A, -85A to 85A, 0.45 %, Voltage Output, 4.75 Vdc to 5.25 Vdc

                                                                                                  LEM
                                                                                                  Image is for illustrative purposes only. Please refer to product description.
                                                                                                  LEM LKSR 25-NP
                                                                                                  ManufacturerLEM
                                                                                                  Manufacturer Part NoLKSR 25-NP
                                                                                                  Order Code3253163
                                                                                                  Product RangeLKSR Series
                                                                                                  Technical Datasheet

                                                                                                  Data Sheet

                                                                                                  See all Technical Docs
                                                                                                  181 In Stock

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                                                                                                  QuantityPrice (ex VAT)
                                                                                                  1+kr86.590
                                                                                                  10+kr85.390
                                                                                                  25+kr85.290
                                                                                                  50+kr85.180
                                                                                                  100+kr85.070
                                                                                                  Price for:Each
                                                                                                  Minimum: 1
                                                                                                  Multiple: 1
                                                                                                  kr86.59 (ex VAT)
                                                                                                  Line Note
                                                                                                  Added to your Order Confirmation, Invoice, and Dispatch note for this order only.
                                                                                                  This number will be added to the Order Confirmation, Invoice, Dispatch note, Web confirmation Email and Product Label.

                                                                                                  Product Information

                                                                                                  LEM
                                                                                                  ManufacturerLEM
                                                                                                  Manufacturer Part NoLKSR 25-NP
                                                                                                  Order Code3253163
                                                                                                  Product RangeLKSR Series
                                                                                                  Technical Datasheet

                                                                                                  Data Sheet

                                                                                                  Sensor Output TypeVoltage
                                                                                                  Supply Voltage DC Min4.75V
                                                                                                  Supply Voltage Range4.75V to 5.25V
                                                                                                  Measured CurrentAC / DC / Pulsed
                                                                                                  Supply Voltage DC Max5.25V
                                                                                                  Current Measuring Range DC-85A to 85A
                                                                                                  Accuracy± 0.5%
                                                                                                  Current Sensor TechnologyClosed Loop, Hall Effect
                                                                                                  Current Measuring Range AC-85A to 85A
                                                                                                  Response Time0.4µs
                                                                                                  Primary Current25A
                                                                                                  Accuracy0.45%
                                                                                                  Secondary Signal Type2.5V
                                                                                                  Sensor MountingThrough Hole
                                                                                                  Operating Temperature Min-40°C
                                                                                                  Operating Temperature Max105°C
                                                                                                  Product RangeLKSR Series
                                                                                                  SVHCNo SVHC (27-Jun-2024)

                                                                                                  Product Overview

                                                                                                  LKSR 25-NP is a LKSR series current transducer for the electronic measurement of current: DC, AC, pulsed, with galvanic separation between the primary and the secondary circuit. Applications include 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) and power supplies for welding applications, solar inverters.

                                                                                                  • IEC 61800-5-1: 2007, IEC 62109-1: 2010, IEC 62477-1: 2012, UL 508:2013 standards
                                                                                                  • Closed loop multi-range current transducer, voltage output
                                                                                                  • Unipolar supply voltage, compact design for PCB mounting
                                                                                                  • Very low offset drift, very good du/dt immunity
                                                                                                  • CKSR footprint compatible
                                                                                                  • Reference pin with two modes: Ref IN and Ref OUT
                                                                                                  • Extended measuring range for unipolar measurement
                                                                                                  • Primary nominal RMS current is 25A typ at TA = 25°C, UC = +5V, NP = 1 turn, RL = 10kohm
                                                                                                  • Frequency bandwidth (±3 dB) is 300kHz min at TA = 25°C, UC = +5V, NP = 1 turn, RL = 1kohm
                                                                                                  • Ambient operating temperature range from -40 to 105°C

                                                                                                  Warnings

                                                                                                  Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

                                                                                                  Technical Specifications

                                                                                                  Sensor Output Type

                                                                                                  Voltage

                                                                                                  Supply Voltage Range

                                                                                                  4.75V to 5.25V

                                                                                                  Supply Voltage DC Max

                                                                                                  5.25V

                                                                                                  Accuracy

                                                                                                  ± 0.5%

                                                                                                  Current Measuring Range AC

                                                                                                  -85A to 85A

                                                                                                  Primary Current

                                                                                                  25A

                                                                                                  Secondary Signal Type

                                                                                                  2.5V

                                                                                                  Operating Temperature Min

                                                                                                  -40°C

                                                                                                  Product Range

                                                                                                  LKSR Series

                                                                                                  Supply Voltage DC Min

                                                                                                  4.75V

                                                                                                  Measured Current

                                                                                                  AC / DC / Pulsed

                                                                                                  Current Measuring Range DC

                                                                                                  -85A to 85A

                                                                                                  Current Sensor Technology

                                                                                                  Closed Loop, Hall Effect

                                                                                                  Response Time

                                                                                                  0.4µs

                                                                                                  Accuracy

                                                                                                  0.45%

                                                                                                  Sensor Mounting

                                                                                                  Through Hole

                                                                                                  Operating Temperature Max

                                                                                                  105°C

                                                                                                  SVHC

                                                                                                  No SVHC (27-Jun-2024)

                                                                                                  Technical Docs (3)

                                                                                                  CAD Multiple Formats EN

                                                                                                  Technical Data Sheet EN

                                                                                                  Product Change Notice EN

                                                                                                  Legislation and Environmental

                                                                                                  Country of Origin:
                                                                                                  Country in which last significant manufacturing process was carried outCountry of Origin:
                                                                                                  Bulgaria
                                                                                                  Country in which last significant manufacturing process was carried out
                                                                                                  Tariff No:90303370
                                                                                                  US ECCN:EAR99
                                                                                                  EU ECCN:NLR
                                                                                                  RoHS Compliant:Yes

                                                                                                  RoHS

                                                                                                  RoHS Phthalates Compliant:Yes

                                                                                                  RoHS

                                                                                                  SVHC:No SVHC (27-Jun-2024)
                                                                                                  Download Product Compliance Certificate

                                                                                                  Product Compliance Certificate

                                                                                                  Weight (kg):.01
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