20A 75mV FL-2 Current Meter Shunt Resistor

High-Accuracy 20A / 75mV Current Measurement: Engineered to expand the direct current measuring range of digital panel meters and ammeters by converting high current flows up to 20A into a proportional 0 - 75mV signal (0.5% accuracy class).

FL-2 Standard Industrial Form Factor: Built to standard FL-2 external shunt specifications with pre-drilled terminal mounting holes for straightforward integration into power distribution boxes and equipment enclosures.

Heavy-Duty Solid Manganese Copper (Manganin) Construction: Features high-precision manganin alloy resistance elements with exceptional temperature stability and low thermal EMF to prevent measurement drift during continuous load operation.

Dual-Terminal Screw Connector System: Designed with separate high-current main load studs and low-voltage signal sensing screw terminals for clean, noise-free millivolt signal extraction.

Robust Overload Resistance: Capable of enduring 120% rated current overloads for up to 2 hours without degradation, ensuring long-term reliability in industrial power systems.

Passive High-Heat Dissipation Structure: Open-frame resistor design ensures rapid ambient heat dissipation under continuous heavy DC current conditions.

Materials & Construction: Manganin alloy resistance element joined to solid brass terminal blocks with protective electroplated surface finish to resist oxidation.

Electrical Specifications:

Rated Current: 20A.

Voltage Drop: 75mV.

Accuracy Class: 0.5(0.5%).

Installation & Handling: Mount securely to a non-conductive, heat-resistant surface. Ensure high-current primary cables are fully tightened onto the main studs to prevent high contact resistance and overheating.

Maintenance & Cleaning: Keep terminal connections dry and free from dust, grease, or corrosion. Gently wipe brass terminals using a dry microfiber cloth when powered off.

Essential Current Sensing Companion: Position as an indispensable accessory for expanding DC ammeters, solar charge controllers, battery capacity monitors, and bench power supplies.

Highlight 0.5% Class Precision & Manganin Alloy: Emphasize its high 0.5% accuracy rating and manganin construction as key indicators of thermal stability and measurement precision over cheap iron-based shunts.

Recommended Cross-Sell Add-ons: Pair with DC 0-100V/10A Digital voltage current meter, 0.28inch 0-100V Three Wire DC Voltmeter Red, 250V 20A Digital Power, Energy, Voltmeter & Ammeter Monitor, and 1 Pair Small Test Hook Clip to Banana Plug.

High-Margin System Add-On: Feature prominently on ammeter product pages and in panel meter collections to capture easy bundle sales.