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FL-21 | 100A 75mV DC Shunt Resistor for Current Measurement

The FL-21 Type 100A 75mV DC Current Shunt is designed to provide precise DC current measurements for a wide range of low-voltage applications. Made with high-conductivity brass terminals and a manganin alloy element, this DC shunt resistor for current measurement generates a stable 75mV voltage drop at 100A, allowing accurate readings on analog or digital ammeters.

ELEHUB ensures strict quality control, delivering reliable performance and long-term stability even in demanding conditions such as solar energy systems or battery banks.

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SKU: FL-21 Category: Tag:

Specifications

Specification     DATA
Model:FL-21
 Current:5-125A, 150-200A, 250-600A, 800-1500A, 2000-2500A, 3000-6000A
Drop Voltage:50mV, 60mV, 75mV, 100mV
Accuracy Class:0.5%,0.2%
Overload performance:120% rated current value, 2 hours
Temperature:-40~+60ºC

Dimension Drawing

Applications

The DC shunt resistor for current measurement is widely used in DC power systems where accurate current monitoring is critical:

Battery Charge/Discharge Monitoring

Ideal for solar energy storage, RV systems, and backup battery banks.

Electric Vehicles and Forklifts

Measure real-time current in charging or driving systems.

Solar Power Inverters

Integrate with MPPT controllers for current sensing.

Telecom Power Cabinets

Monitor load current in DC power distribution.

DC Test Benches

Support lab environments requiring precision measurement.

Analog & Digital Panel Meters

Convert current to 75mV voltage for external meters.

Resources

Downloads:

Why Choose Us as a DC Current Shunt Supplier?

Deep Industry Expertise

With years of experience in DC component manufacturing and export, we understand your technical and application needs in power monitoring, EV systems, and industrial control.

Accurate & Reliable Performance

Our shunt resistors use premium manganin and brass to ensure long-term accuracy, low temperature drift, and stable performance under real-world load conditions.

Customization Capability

From current/voltage ratings to terminal styles and mounting, we offer tailored solutions to fit your specific system designs.

Strong Export Experience

We ship to over 90 countries and support full documentation, HS codes, and safe packaging — whether it’s for small batches or bulk orders.

Fast Response & Technical Support

Our experienced sales team replies within 12–24 hours. Need help with specs, selection, or integration? We provide clear technical guidance throughout.

Stable Supply Chain & Inventory

We maintain core inventory and stable production cycles to ensure your project timelines are never delayed.

FAQs

What does a 100A 75mV shunt do?

It provides a 75mV voltage output when 100A current flows through it, allowing external devices to accurately measure current.

Elehub uses brass terminals and manganin alloy for superior conductivity and resistance stability.

Available with 0.5% or 0.2% accuracy for industrial-grade applications.

Mount it in-line with the DC circuit and connect the small terminals to the meter using shielded wiring if necessary.

Can I use it with a digital meter?

Yes, it is compatible with most 75mV-input digital and analog ammeters or data acquisition systems.

It is factory-calibrated, but you can verify accuracy during system setup if required.

Elehub offers various models from 5A to 6000A, with voltage drops of 50mV or 75mV.

Absolutely. It’s widely used in solar inverters, MPPT controllers, and energy storage systems.

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