Description
A DC energy meter shunt resistor with lead wires is a precision component designed to convert high DC current into a small, measurable voltage signal. It enables accurate power calculation, stable energy monitoring, and long-term reliability in compact metering circuits. For more technical references on shunt resistors, see Mouser Electronics – Shunt Resistors, or check our current sense shunt resistor products for more options.
Key Features of DC Energy Meter Shunt Resistor
High Measurement Accuracy — Tolerance down to ±0.5% for reliable DC current sensing.
Low Temperature Coefficient (TCR) — Stable resistance from –40°C to +125°C.
Manganin Alloy Element — Excellent linearity with minimal drift over time.
Lead-Wire Configuration — Easy to integrate with PCBs or terminal blocks.
Durable & Heat-Resistant — Designed for continuous operation in demanding DC metering applications.
| Parameter | Range / Value | Remarks |
|---|---|---|
| Resistance Range | 50 µΩ – 50 mΩ | Customizable |
| Rated Current | 5A – 100A | Depending on design |
| Rated Voltage Drop | 75mV / 100mV | Standard for energy meters |
| Tolerance | ±0.25%, ±0.5%, ±1% | Optional precision grades |
| Operating Temp. | -40°C to +125°C | High stability in DC circuits |
| Material | Manganin / Copper Alloy | Low EMF, anti-oxidation |
Installation Tips
Ensure proper soldering or terminal connection for accurate readings.
Keep within rated current and voltage limits to avoid overheating.
Follow manufacturer guidelines for ambient temperature and derating.
Advantages Over Standard Shunt Resistors
Higher precision and stability under variable temperatures.
Longer lifespan due to Manganin alloy and durable lead wires.
Compact design suitable for integration in tight spaces.
Installation Tips
Ensure proper soldering or terminal connection for accurate readings.
Keep within rated current and voltage limits to avoid overheating.
Follow manufacturer guidelines for ambient temperature and derating.
Advantages
Higher precision and stability under variable temperatures.
Longer lifespan due to Manganin alloy and durable lead wires.
Compact design suitable for integration in tight spaces.
RoHS Compliance and Technical References
All our DC energy meter shunt resistors are manufactured using RoHS-compliant materials,
ensuring compliance with global environmental regulations and safe use in energy metering applications.
For official regulatory information, see the EU RoHS Directive
Applications of DC Energy Meter Shunt Resistors
1️⃣ DC Energy Meters — Accurate current measurement for solar and industrial energy monitoring.
2️⃣ Smart Power Monitoring Units — Embedded in digital metering modules for current detection.
3️⃣ Industrial Control Systems — Used for current sampling in control cabinets or test setups.
4️⃣ Battery Management Equipment — For charge/discharge current sensing.
5️⃣ DC Power Supplies and Instrumentation — Ensures reliable current feedback and protection
