Shunts

Shunts
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Alpha FNP Series

The FNP high power precision shunt resistor series from Alpha Electronics offers a range of very high precision current sensing shunts with a maximum power rating of 500W on a suitable heat sink at +25°C. By utilising a Ni-Cr Bulk Metal® foil resistor technology, they are able to produce resistors with low temperature coefficients. The FNP shunt resistor series has a built in Pt100 sensor for monitoring the temperature of the resistive element.

  • High power precision shunt resistor
  • Available in any resistance between 0.001Ω and 1Ω (higher values may be available upon request)
  • Tight tolerance options as low as ±0.05% available
  • Tight TCR options available of ±1 ppm/°C and ±2.5 ppm/°C (+25°C to +60°C) or ±5 ppm/°C (-25°C to +125°C)
  • Maximum rated power of 500W
  • Maximum working current of 320A
  • Maximum rated operating temperature +75°C (resistance values greater than 0.01Ω, +25°C for resistances of 0.01Ω or below)
  • Working temperature from -55°C up to +125°C
  • Single pulse power load of 50J (<10ms)

The Alpha Electronics FNP precision shunt resistor series are constructed out of the following materials:

  • Base plate - Nickel-plated Copper
  • Current terminals - Nickel-plated Copper (T = 1.0mm)
  • Voltage and Pt terminals - Nickel-plated Copper (T = 0.5mm)
  • Package - PPS injection-moulded case

Alpha's Ni-Cr Bulk Metal® foil resistor technology means these high power precision shunt resistors resistors are ideal in applications like:

  • Output reference of precision power supply
  • Reference of charge-discharge test for high capacity batteries

The below table gives a summary of the specifications and options available for the Alpha FNP series:

Alpha FNP Specifications

* Keep temperature of the resistive element surface less than +125°C
** Please contact us for higher resistance values

£0.00 Ex Tax: £0.00

Alpha PSB Series

The PSB ultra-precision power shunt resistor series from Alpha Electronics offers 4-terminal (Kelvin) connections for current sensing and a power rating of up to 40W on a heat sink or 12W in free air (at +25°C) all with a low ohmic resistance range from 0.001Ω to 1Ω. By utilising Alpha's Bulk Metal® foil resistor technology, they are able to offer excellent temperature characteristics with low temperature coefficients down to ±5 ppm/°C between the resistance range 0.005Ω and 1Ω.

  • Ultra-precision power shunt resistor
  • Available in any resistance between 0.001Ω and 1Ω
  • 4-terminal (Kelvin) connection high power shunt
  • High heat dissipation due to aluminium-clad construction with fins
  • Power rating of 40W on a heat sink or 12W in free air at +25°C
  • Tolerances as low as ±0.1% over the whole resistance range
  • Tight TCR available of ±5 ppm/°C between 0.005Ω and 1Ω
  • Maximum working current of 100A
  • Maximum rated operating temperature +25°C
  • Working temperature from -55°C up to +85°C

The PSB ultra-precision shunt resistor series exhibits excellent temperature characteristics thanks to Alpha's Bulk Metal® foil resistor technology, making them suitable for the most demanding precision and high power applications.

The 4-terminal connections of this high power shunt series offers accurate current sensing capabilities even in low extremity of resistance.

The PSB series has been designed for easy mounting to heat sink or water-cooled radiator as well as with threaded holes to fix cables with screws (Caution: please screw current terminals >5N·m and voltage terminals >1N·m)

Their 4-terminal design and high precision make them ideal for current sensing in precise power supply or motor driver applications.

The below table gives a summary of the specifications and options available for the Alpha PSB series:

Alpha PSB Specifications

* Thermal resistance of the heat sink 1°C/W
Available to use higher rated power with elevation of cooling effect
Please keep temperature of element surface less than +60°C

£0.00 Ex Tax: £0.00

Isabellenhütte BAC Series

The BAC precision resistor series from Isabellenhütte includes a PCB with connector for voltage sensing, designed for battery management systems or welding equipment with a low resistance value of 0.0001Ω. The BAC series from Isabellenhütte is available with tinned or untinned terminals, continuous load up to 320A (0.0001Ω) within a chip size of 8420.

  • 2-terminal shunt resistor
  • Maximum fastening torque of 10Nm
  • Shunt available with tinned or untinned terminals
  • Permanent power up to 10W
  • Resistance value of 100µΩ
  • TCR of <150 ppm/K (between +20°C and +60°C)
  • Applicable temperature range from -10°C to +125°C
  • Tolerance of ±5.0%
  • 8420 Chip size

Typical applications for the BAC series include:

  • Current sensor for electronic battery management in motor cars, trucks, forklifts, hybrid and electric vehicles
  • Current sensing in bus bars
  • Current sensing in welding equipment

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

Isabellenhütte BAC Specifications

£0.00 Ex Tax: £0.00

Isabellenhütte BAS Series

The BAS precision resistor series from Isabellenhütte, designed for battery management systems or welding equipment with a low resistance values from 0.000035Ω to 0.0005Ω. The BAS series from Isabellenhütte is available with tinned or untinned terminals, continuous load up to 350A (100µΩ) within a chip size of 8420.

  • 2-terminal shunt resistor
  • Maximum fastening torque 10Nm
  • Shunt available with tinned or untinned terminals
  • Permanent power up to 30W
  • Resistance values range from 35µΩ to 500µΩ
  • TCR value <50 ppm/K (from +20°C to +60°C)
  • Applicable temperature range from -40°C to +170°C
  • ±5.0% tolerance
  • AEC-Q200 qualified (automotive version A)
  • 8420 Chip size
  • Further versions with various dimensions upon request

Typical applications for the BAS series include:

  • Current sensor for electronic battery management in motor cars, trucks, forklifts, hybrid and electric vehicles
  • Current sensing in bus bars
  • Current sensing in welding equipments

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

Isabellenhütte BAS Specifications

£0.00 Ex Tax: £0.00

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

£0.00 Ex Tax: £0.00

Isabellenhütte BVD Series

The BVD 2-terminal precision resistor series from Isabellenhütte are designed for energy metering and battery charging, with a resistance value of 0.0005Ω (further values available on request). The BVD series from Isabellenhütte is available with heavy cooper connectors, continuous current load up to 75A.

  • 2-terminal precision resistor
  • Heavy copper connectors
  • Continuous current load of up to 75A
  • Resistance value of 500µΩ (Further values available on request)
  • TCR of <50 ppm/K (between +20°C and +60°C)
  • Applicable temperature range from -55°C to +140°C
  • Tolerance ±5.0%
  • Excellent long term stability
  • Low inductance value of <3nH
  • Power rating 3W

Typical applications for the BVD series include:

  • Energy metering and kWh-meters
  • Battery current sensing
  • High current sensing in automotive applications
  • Current measurement in battery chargers

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

Isabellenhütte BVD Specifications

* Further values available on request

£0.00 Ex Tax: £0.00

Isabellenhütte BVM-F Series

The BVM-F precision resistor series from Isabellenhütte are designed for high current applications such as kWh meters and battery chargers, with a resistance value range from 0.0001Ω to 0.0005Ω. The BVM-F series from Isabellenhütte has a three different power connections threaded bolts, bolt down holes and solid terminals which has a continuous current load up to 200A (0.0001Ω).

  • 2-Terminal precision resistor
  • 3 different power connectors threaded bolts, bolt down holes and solid terminals
  • Continuous current load up to 200A (0.0001Ω)
  • Resistance values of 0.0001Ω, 0.0002Ω, 0.0003Ω and 0.0005Ω
  • TCR value <50 ppm/K (between +20°C and +60°C)
  • Applicable temperature range from -55°C to +140°C
  • Tolerance ±5.0%
  • Excellent long term stability
  • They conform to AEC-Q200
  • Permanent power 5W

Typical applications for the BVM-F series include:

  • Energy metering and kWh-meters
  • Battery current sensing
  • High current sensing in automotive applications
  • High current measurement in welding machines

The below table gives an overview of the specifications for the Isabellenhütte BVM-F series:

Isabellenhütte BVM-F Specifications

£0.00 Ex Tax: £0.00

Isabellenhütte KVM Series

The KVM precision resistor series from Isabellenhütte are designed for battery management systems and battery chargers, with a resistance value of 0.0001Ω. The KVM series from Isabellenhütte has heavy copper connections with a continuous current load up to 250A.

  • 2-Terminal precision resistor for battery management systems and battery chargers
  • Heavy copper connections
  • Continuous current load up to 250A
  • Resistance values of 100µΩ
  • TCR of <50 ppm/K (between +20°C and +60°C)
  • Applicable temperature range from -55°C to +170°C
  • Tolerance of ±5.0%
  • Excellent long term stability
  • AEC-Q200 qualification
  • Max. solder temperature up to 350 °C / 30 sec or 250 °C / 10 min
  • Excellent long term stability
  • Low inductance value of <5nH
  • Power rating 7W (at 110°C) and 5W (at 120°C)

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

Isabellenhütte KVM Specifications

£0.00 Ex Tax: £0.00

Isabellenhütte RUG-Z Series

The RUG-Z high precision shunt resistor series from Isabellenhütte offers 4-terminal connection technology of very high precision current sensing shunts with a maximum power rating of 250W on a suitable heat sink. Designed for measuring high currents with very high accuracy in power supplies such as those for superconducting magnets. The RUG-Z series from Isabellenhütte has a single pulse power load of 50J (tp <10ms) capabilities.

  • 4-terminal shunt resistor
  • 250W Permanent power at 85°C (with suitable heat sink)
  • Extremely low resistance values starting at 0.0005Ω to 100Ω
  • TCR values from <1 ppm/K (between +20°C and +60°C)
  • Applicable temperature range from -55°C to +110°C
  • Tolerance options available ±0.1% and ±1% (depending on the resistance values required)
  • Pulse power rating 50J for 10ms

Typical applications for the RUG-Z series include:

  • High current sensing
  • Measurement equipment
  • Reference resistors in laboratories
  • Current source
  • Laboratory power supply

The below table gives an overview of the specifications for the Isabellenhütte RUG-Z series:

Isabellenhütte RUG-Z Specifications

£0.00 Ex Tax: £0.00

Riedon RSA Series

The RSA series of precision current shunts from Riedon have been especially designed for DC ammeters and similar instruments. These base-mounted shunts offer current ratings from 5A up to 150A with outputs of 0.05V, 0.1V or custom options available. They utilise a Manganin® resistive element and have a standard tolerance of ±0.25% with ±0.1% parts available on request. The very low resistance values required for the shunt resistors, which range from 333.3µΩ at 150A to 0.01Ω at 5A, are provided by the Manganin® resistive elements. These RSA precision shunt resistors are also UL listed and feature a 4-terminal design, separating the heavy duty load carrying connections from the voltage sensing terminals.

  • Base mounted shunt
  • Manganin® resistive element
  • 0.05V output available in select resistance values between 333.3µΩ and 0.01Ω
  • 0.1V output available in select resistance values between 666.7µΩ and 0.02Ω
  • Current rating from 5A to 150A
  • Standard tolerance of ±0.25% with ±0.1% parts available on request
  • Dielectric strength 750VDC (terminal block to base)
  • Operating temperature −40°C to +60°C
  • UL listed

Riedon RSA series base mounted shunts cover the following applications:

  • Solar generators
  • Wind power
  • Heavy industry
  • Electroplating
  • Battery chargers
  • Mining

The below table gives the full specifications for each resistor model available in the Riedon RSA base mounted shunt series:

Riedon RSA Specifications

1 Please contact us for other resistance values

£0.00 Ex Tax: £0.00

Riedon RSB Series

The RSB series of precision current shunts from Riedon have been especially designed for DC ammeters and similar instruments. These base-mounted shunts offer current ratings from 170A up to 600A with outputs of 0.05V, 0.1V or custom options available. They utilise a Manganin® resistive element and have a standard tolerance of ±0.25% with ±0.1% parts available on request. The very low resistance values required for the shunt resistors, which range from 83.3µΩ at 600A to 588.2µΩ at 170A, are provided by the Manganin® resistive elements. The RSB precision shunt resistors are also UL listed and feature a 4-terminal design, separating the heavy duty load carrying connections from the voltage sensing terminals.

  • Base mounted shunt
  • Manganin® resistive element
  • 0.05V output available in select resistance values between 83.3µΩ and 294.1µΩ
  • 0.1V output available in select resistance values between 166.7µΩ and 588.2µΩ
  • Current rating from170A to 600A
  • Standard tolerance of ±0.25% with ±0.1% parts available on request
  • Dielectric strength 750VDC (terminal block to base)
  • Operating temperature −40°C to +60°C
  • UL listed

Riedon RSB series base mounted shunts cover the following applications:

  • Solar generators
  • Wind power
  • Heavy industry
  • Electroplating
  • Battery chargers
  • Mining

The below table gives the full specifications for each resistor model available in the Riedon RSB base mounted shunt series:

Riedon RSB Specifications

1 Please contact us for other resistance values

£0.00 Ex Tax: £0.00

Riedon RSC Series

The RSC series of precision current shunts from Riedon have been especially designed for DC ammeters and similar instruments. These base-mounted shunts offer current ratings of 800A, 1000A and 1200A with outputs of 0.05V, 0.1V or custom options available. They utilise a Manganin® resistive element and have a standard tolerance of ±0.25% with ±0.1% parts available on request. The very low resistance values required for the shunt resistors, which range from 41.7µΩ at 1200A to 125µΩ at 800A, are provided by the Manganin® resistive elements. The RSC precision shunt resistors are also UL listed and feature a 4-terminal design, separating the heavy duty load carrying connections from the voltage sensing terminals.

  • Base mounted shunt
  • Manganin® resistive element
  • 0.05V output available in select resistance values between 41.7µΩ and 62.5µΩ
  • 0.1V output available in select resistance values between 83.3µΩ and 125µΩ
  • Current rating from 800A to 1200A
  • Standard tolerance of ±0.25% with ±0.1% parts available on request
  • Dielectric strength 750VDC (terminal block to base)
  • Operating temperature −40°C to +60°C
  • UL listed

Riedon RSC series base mounted shunts cover the following applications:

  • Solar generators
  • Wind power
  • Heavy industry
  • Electroplating
  • Battery chargers
  • Mining

The below table gives the full specifications for each resistor model available in the Riedon RSC base mounted shunt series:

Riedon RSC Specifications

1 Please contact us for other resistance values

£0.00 Ex Tax: £0.00

Riedon RSN Series

The RSN series of base-mounted DC Ammeter/Busbar shunts from Riedon offers current ratings from 1A up to 500A with outputs of 0.05V, 0.1V or custom options available. They utilise a Manganin® resistive element to achieve low resistance values ranging from 100µΩ at 500A to 0.05Ω at 1A (for 50mV Output) and have a standard tolerance of ±0.1%.

  • Base mounted shunt
  • Manganin® resistive element
  • 0.05V output available in select resistance values between 100µΩ and 0.05Ω
  • 0.1V output available in select resistance values between 200µΩ and 0.1Ω
  • Current rating from 1A to 500A
  • Standard tolerance of ±0.1%
  • Calibration certificate available
  • Operating temperature +30°C to +70°C

Riedon RSN series base mounted shunts cover the following applications:

  • Power Supply
  • Power Conversions
  • Current Measurements

The below table gives the full specifications for each resistor model available in the Riedon RSN base mounted shunt series:

Riedon RSN Specifications

£0.00 Ex Tax: £0.00