Isabellenhütte BKW Series

Isabellenhütte BKW Series
The BKW 4-terminal precision resistor series from Isabellenhütte, designed for energy meters with resistance values from 0.0003Ω to 0.0005Ω. The BKW series from Isabellenhütte has extremely good long-term stability, thus the energy meters do not require any recalibration, very high reproducibility of R-value and TCR.
  • 4-terminal precision resistor, independent from temperature because of lowest TCR-values
  • Massive copper terminals
  • Mounting: screwed on terminals of kWh-meter
  • Permanent Current upto 100A (0.0003Ω)
  • Resistance values 0.0003Ω, 0.0004Ω and 0.0005Ω
  • TCR value <20 ppm/K (from +20°C to +60°C)
  • Applicable temperature range from -55°C to +140°C
  • Tolerance ±5.0%
  • Qualified for 20A, 40A, 60A and 80A - energy meters

Typical applications for the BKW series include:

  • Ideal for single and three phase energy meters
  • Battery current sensing

The below table gives an overview of the specifications for the Isabellenhütte BKW series:

Isabellenhütte BKW Specifications
Specifications
Additional Features
  • 4-terminal surface-mount resistor
  • Independent from temperature because of lowest TCR values
  • Permanent current up to 100A (0.0003Ω)
  • Massive cooper terminals
  • Extremely good long-term stability
  • Applicable temperature range -55°C to +140°C
  • Mounting: Screwed on terminals of kWh-meter
Maximum Power Rating
  • 3W
Maximum Resistance
  • 0.0005Ω
Minimum Resistance
  • 0.0003Ω
TCR
  • <20 ppm/K (between +20°C and +60°C)
Tolerance
  • ±5.0%

We are pleased to provide you with a range of additional content including videos, product datasheets, case studies, white papers and application notes for your reference. Please see below for the latest content available:

 

 

DOCUMENTATION
PDF DocumentIsabellenhütte BKW 4-terminal precision current sense resistor series datasheet
PDF DocumentIsabellenhütte low-ohmic and power resistors product catalogue

 

 

 

VIDEOS
Introduction to Isabellenhütte Heusler GmbH & Co. KG

Introduction video to Isabellenhütte, their business and product applications examples
Isabellenhütte precision and power resistors application overview

This video highlights customer applications and application options of Isabellenhütte's precision and power resistors
VIDEOS
Introduction to Isabellenhütte Heusler GmbH & Co. KG

Introduction video to Isabellenhütte, their business and product applications examples
Isabellenhütte precision and power resistors application overview

This video highlights customer applications and application options of Isabellenhütte's precision and power resistors

Below is an example of the part number break down for the BKW resistor series:

BKW Part Number Example

RoHS Compliance

This product is available fully compliant to the RoHS EU directive 2011/65/EU.

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Tags: BKW-M-R0003-5.0, BKW-M-R0004-5.0, BKW-M-R0005-5.0, Isabellenhuette