Electron-Beam Current Measurement Resistor Kwh Ammeter Shunt
Electron-Beam Current Measurement Resistor Kwh Ammeter Shunt
Electron Beam Welded Shunt Resistors (E-B Shunt), designed for precision current sensing in a variety of applications, including single-phase and three-phase kWh meters. These shunts are constructed from a high-quality Copper-Manganin-Copper material, ensuring excellent conductivity and stability.
Features:
Features: Compared with Type A, it has lead legs but is not folded. The pin and resistor body size can be customized according to the user's special requirements.
Installation method: The copper legs are extended to avoid obstacles between the terminals
Signal connection: Through soft wires or directly soldered to the PCB board.
Applicable objects: Meter connection method under IEC standard or BS standard, connection between any two terminals.
Material: Copper + manganese copper.
Structure: Electron beam precision welding.
Function: Mainly used for current sampling in electric energy meters.
Resistance value error range: 2~5%
Shunt Resistor Selection Guide:
| Shunt Resistor Selection Guide:： | ||||
| kWhEnergy meter | Electron beam welding shunt | |||
| Imax | Accuracy | Thickness(mm) | resistance (μQ) | Tolerance |
| 10A | Class 1.0 | 1.0 | 800-1200 | ±2-5% |
| 40~60A | Class 1.0 | 1.0-1.2 | 250-500 | ±2-5% |
| 80A | Class 1.0 | 1.5-2.0 | 150-250 | ±2-5% |
| 100A | Class 1.0 | 1.5-2.0 | 100-200 | ±2-5% |
| 120A | Class 1.0 | 1.5-2.0 | 100-180 | ±2-5% |
| 200A | Class 1.0 | 2.0-2.5 | 30-80 | ±2-5% |
Characteristics of electron beam welding shunt:
High precision, resistance error within the range of ±2~5%, high consistency;
Lightning resistance, can pass 5000A/10ms;
Low temperature coefficient, the temperature coefficient is less than 50ppm at -40℃~+120℃;
Integrated electron beam welding of copper and manganese copper, flat structure, minimum contact resistance, and low self-heating;
Metal protection liquid is evenly applied to the surface of the shunt, and good surface treatment effectively prevents oxidation;
Can be welded with different copper terminals, low cost can be achieved through good design;
Long-term reliability, normal service life of more than 20 years;
The product is small and light, and can be used with relays;
Environmentally friendly products, in line with RoHS directive requirements.
It can be customized according to customer requirements. Customers need to provide the following information:
1. Maximum current and reference current actually used;
2. Expected resistance range;
For more shunts, please browse our other models
3. Signal wire length;
4. Signal wire gauge
5. Center spacing of mounting holes;
6. Mounting hole diameter;
7. Dimensional drawing of case bottom shell with terminal box.
