Product Introduction
Bar Type Load Resistors are designed for high-power, high-precision applications. They are widely used in power supply load testing, inverter braking, current sampling, energy absorption, and other scenarios. Made of high-quality alloy materials and an integrated strip structure, they offer high precision, low inductance, and excellent heat dissipation, making them suitable for industrial and electronic systems with demanding performance requirements.
Product Picture
Core Advantages
(1) High Precision and Long-term Stability
Using high-purity manganese copper, constantan, or nickel-chromium alloy materials combined with precision etching or winding processes, the Bar Type Load Resistor achieves a resistance accuracy of up to ±0.1%. Its extremely low temperature coefficient ensures minimal resistance drift within the operating range of -55℃ to +155℃, making it suitable for precision measurement, analog signal conditioning, and high-stability power supply systems.
(2) High Power-Carrying Capacity and Excellent Heat Dissipation Performance
The unique strip structure increases the heat dissipation area, and when installed with a metal substrate or heat sink, it efficiently dissipates heat. Even under continuous high-current operation, the temperature rise remains controllable, preventing thermal failure. It is widely used in high-energy scenarios such as power aging testing and motor energy consumption braking.
(3) Low Inductance and Low Resistance Design, Suitable for High-Frequency and Sampling Applications
Through special wiring and symmetrical structural design, parasitic inductance is significantly reduced (< 0.1 μH), minimizing inductive interference under high-frequency signals. This makes it suitable for high-frequency circuits such as switching power supplies and PWM control. Additionally, low-resistance models in the milliohm range (e.g., 5 mΩ and 10 mΩ) are available to meet high-precision sampling requirements in current detection and battery charge/discharge management.
production equipment
Application Scenarios
Variable Frequency Drive (VFD) System Braking
When a motor rapidly decelerates, the Bar Type Load Resistor acts as a braking unit, converting regenerative electrical energy into heat.
Motor Starting and Testing
As a starting resistor, this product reduces starting current surges through stepped input control.
Power Supply Equipment Load Testing
It is used for factory inspection and routine maintenance of generator sets and UPS equipment.
About the factory
Process Technology and Customization Services
1. Advanced Manufacturing Process
Laser Welding Technology: The resistor wire and terminals are laser-welded, achieving a contact resistance of less than 0.5 mΩ, reducing heat loss.
3D-Printed Heatsink Fins: Through topology optimization, the heat dissipation area is increased by 50%, enabling a power density of 5 kW/kg.
2. Full-Process Customization Service
Parameter Customization: Adjust resistance value, power, and dimensions (e.g., length ≤ 3 m) according to user requirements.
Structure Customization: Supports wall-mount, DIN-rail, or flange mounting to accommodate different equipment spaces.
Fast Delivery: Standard models ship within 3 days, and customized models are produced within 15 days.
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