Application
Energy Storage System (ESS)
Energy storage systems require precise measurement of current and voltage in order to obtain accurate information about the condition and performance of the battery. With our precision resistors and sensors, we are exactly the right partner for this.
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Current measurement for stationary & mobile systems
Domestic, commercial and industrial storage systems are the answer to feeding decentrally generated electrical energy into the electricity distribution grid. The increasing state-subsidized expansion of renewable energies is increasingly leading to unstable situations in the distribution grids.
What all electrical energy storage systems have in common is the need for precise measurement of current and voltage in order to be able to make important statements about battery diagnostics.
Longer service life for batteries
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Important parameters for pack monitoring are state-of-charge (SoC), state-of-health (SoH) and state-of-power (SoP). SoC refers to the monitoring of the battery charging process, SoH refers to the monitoring of the “state of health” and SoP refers to the maximum current that the battery can deliver or absorb in a specific window.
Analog current sensors and other Isabellenhütte products can be used to monitor the three parameters of the battery pack. The use of our products guarantees gentle charging and discharging of the battery, extends the service life and protects the batteries from excessive currents over long periods of time, which can destroy the battery.
Optimized grid stability
Optimum grid stability thanks to precise and fast shunt-based current measurement.
Efficient energy storage
Accurate shunt-based measurement of state-of-charge (SoC), state-of-health (SoH) and state-of-power (SoP).
High
precision
Lower temperature coefficients and initial tolerances.
Our products for your energy storage systems
If you cannot find a suitable product for your requirements here, please contact us.
BAL
Very low-resistance busbar shunt in a small design for battery management systems. Resistance value 100µOhm
Product area: | Resistor |
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Size: | 5216 |
Power (Watt): | 12 |
Tol (%): | 5.00 |
Res (Ohm): | 0.0001 |

BAN
Very low-resistance busbar shunt for battery management systems or energy storage systems. Resistance value 25 µOhm.
Product area: | Resistor |
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Size: | 8436 |
Power (Watt): | 36 |
Tol (%): | 5.00 |
Res (Ohm): | 0.000025 |

BAS
Very low-resistance busbar shunt for battery management systems or energy storage systems. Resistance values between 35µOhm and 500µOhm.
Product area: | Resistor |
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Size: | 8420 |
Power (Watt): | 10 - 36 |
Tol (%): | 5.00 |
Res (Ohm): | 0.000035 - 0.0005 |

BAV
Very low-resistance busbar shunt for battery management systems or energy storage systems. Resistance values between 35 µOhm and 100 µOhm, Pressfit connections.
Product area: | Resistor |
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Size: | 8420 |
Power (Watt): | 36 |
Tol (%): | 5.00 - 10.0 |
Res (Ohm): | 0.000035 - 0.0001 |

BAX
Very low-resistance busbar shunt for battery management systems or energy storage systems. Resistance values of 20 µOhm and 25 µOhm.
Product area: | Resistor |
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Size: | 8436 |
Power (Watt): | 50 |
Tol (%): | 5.00 |
Res (Ohm): | 0.000005 - 0.00002 |

BSL
Where very high accuracy and reliability and a separation of the battery management system from the busbar currents is key to success, the analog sensor series from Isabellenhütte is the perfect fit. The temperature and current measurement designed for battery management ICs offers two of the most important functions of the battery management system with optimum functionality and expertise in shunt-based current measurement. Resistance value 100µOhm, NTC temperature measurement and DMC for factor-based TCR compensation
Product area: | Resistor |
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Size: | 5216 |
Power (Watt): | 10 |
Tol (%): | 5.00 |
Res (Ohm): | 0.0001 |

BSN
Where very high accuracy and reliability and a separation of the battery management system from the busbar currents is key to success, the analog sensor series from Isabellenhütte is the perfect fit. The redundant temperature and current measurement designed for battery management ICs offers two of the most important functions of the battery management system with optimum functionality and expertise in shunt-based current measurement. Resistance value 25µOhm, NTC temperature measurement and DMC for factor-based TCR compensation
Product area: | Resistor |
---|---|
Size: | 8436 |
Power (Watt): | 36 |
Tol (%): | 5.00 |
Res (Ohm): | 0.000025 |

BSS
Where very high accuracy and reliability and a separation of the battery management system from the busbar currents is key to success, the analog sensor series from Isabellenhütte is the perfect fit. The temperature and current measurement designed for battery management ICs offers two of the most important functions of the battery management system with optimum functionality and expertise in shunt-based current measurement.
Product area: | Resistor |
---|---|
Size: | 8420 |
Power (Watt): | 20 - 30 |
Tol (%): | 5.00 |
Res (Ohm): | 0.00005 - 0.0001 |

BSX
Where very high accuracy and reliability and a separation of the battery management system from the busbar currents is key to success, the analog sensor series from Isabellenhütte is the perfect fit. The temperature and current measurement designed for battery management ICs offers two of the most important functions of the battery management system with optimum functionality and expertise in shunt-based current measurement. Resistance value 25 µOhm, NTC temperature measurement and DMC for factor-based TCR compensation.
Product area: | Resistor |
---|---|
Size: | 8436 |
Power (Watt): | 45 |
Tol (%): | 5.00 |
Res (Ohm): | 0.000025 |

BVB
4-terminal resistor made of composite material. Ideal for use on DCB and FR4 Space-saving design.
Product area: | Resistor |
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Size: | 2725 |
Power (Watt): | 3 - 12 |
Tol (%): | 1.00 |
Res (Ohm): | 0.0002 - 0.005 |

ICD-A
The ICD series is a compact precision current measurement system. It uses shunt-based current measurement for maximum accuracy and has a CAN interface. It also contains a 16-bit ADC for measured value acquisition. The ICD can be used in many 12V DC applications.
Product area: | Sensor |
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Current Range: | 0 - 500 |
Current Range Options: | 100, 300, 500 |
Interface: | CAN (2.0 a/b) communication - with termination, CAN (2.0 a/b) communication - without termination |
Hardware setup: | 12 V |
Configuration: | 16-bit analog-digital converter |
Plating shunt: | nickel plated |

IVT-3-Base
The IVT 3 is a compact high precision current measurement device, which is built on a platform concept where functional components can be added to adapt to many different use cases. The IVT 3 series is developed according to ISO 26262:2018 (Road vehicles – Functional safety).
Product area: | Sensor |
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Current Range: | 0 - 1000 |
Current Range Options: | 1000 |
Interface: | CAN (2.0 a/b) communication - with termination, CAN (2.0 a/b) communication - without termination |
Hardware setup: | 12 V |
Configuration: | Isolated (1,000 V) |
Plating shunt: | nickel plated |

IVT-3-Pro
The IVT 3 is a compact high precision current measurement device, which is built on a platform concept where functional components can be added to adapt to many different use cases. The Pro version supports insulation resistance monitoring and 3 or 6 voltage measurement channels. The IVT 3 series is developed according to ISO 26262:2018 (Road vehicles – Functional safety).
Product area: | Sensor |
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Current Range: | 0 - 1000 |
Current Range Options: | 1000 |
Voltage Range: | 0 - 1000 |
Voltage Channels: | 6, 3 |
Interface: | CAN (2.0 a/b) communication - with termination, CAN (2.0 a/b) communication - without termination |
Hardware setup: | 12 V, 24 V |
Configuration: | Isolated (1,000 V), isolated + insulation monitoring, isolated + insulation monitoring + As-/Wh-counter |
Plating shunt: | nickel plated |

IVT-S
The IVT-S is a compact, high-precision current measurement system equipped with a CAN interface. The continuous current measurement covers a measuring range of up to ±2,500 A and can be extended by up to 3 voltage measurement channels (nom. 1000 V). The IVT-S has been the benchmark for precise current and voltage measurement since 2017.
Product area: | Sensor |
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Current Range: | 0 - 2500 |
Current Range Options: | 100, 300, 500, 1000, 2500 |
Voltage Range: | 0 - 1000 |
Voltage Channels: | 3 |
Interface: | CAN (2.0 a/b) communication - with termination, CAN (2.0 a/b) communication - without termination |
Hardware setup: | 12 V, 24 V |
Configuration: | Isolated (1,000 V) |
Plating shunt: | nickel plated, tin plated |
