China 100KW Portable load bank Manufacturer, Supplier, Factory

RST Electric presents Bare Alloy Current Sense Resistor – a high-precision, surface-mount shunt resistor engineered for ultra-low resistance current sensing in demanding power electronics. Featuring an electron beam welded alloy element with pure copper electrodes, this SMD Current Sense Resistor delivers exceptionally low resistance values (from 0.1mΩ to 5mΩ), ultra-low parasitic inductance (0.5nH to 5nH), and minimal thermoelectric EMF (<1µV/°C). Available in 3W, 5W, and 7W power ratings with industry-standard footprints (2512, 3920, 5930, 2726), it is ideal for automotive battery management systems (BMS), high-frequency switching converters, and motor control applications. Tight tolerances down to ±0.5% and low TCR (as low as ±100 ppm/°C) ensure accurate current measurement across a wide temperature range.

RST Electric introduces the Non-inductive Metal Plate Resistor – a high-performance, low-inductance power resistor designed for demanding applications requiring minimal phase shift and rapid response. Featuring a metal plate element encapsulated in a flame-retardant ceramic housing, this Non-inductive Resistor delivers excellent pulse handling, low resistance values (from 0.01Ω), and stable performance across a wide temperature range. With power ratings from 2W to 7W (single-element) and combined configurations (2+2, 3+3, 5+5, 7+7), it suits current sensing, snubber circuits, high-frequency inverters, and power amplifier applications. Available in tolerances from ±1% to ±10% with a low temperature coefficient (≤ ±250 ppm/°C), this Metal Plate Power Resistor meets rigorous performance standards including solderability, dielectric withstand, vibration, and endurance testing.

RST Electric introduces TO247 Thick Film Power Resistor – a high-power, surface-mountable resistor designed for demanding power electronics requiring superior thermal management. Housed in a standard TO247 plastic package with an integral mounting tab, this TO247 Power Resistor delivers 100W at 25°C case temperature when properly heatsink mounted, making it ideal for high-power switching supplies, pulse loading circuits, power amplifiers, and snubber networks. With a wide resistance range from 0.2Ω to 1MΩ, tolerances as tight as ±1%, and a maximum working voltage of 700V, it offers exceptional versatility for industrial, automotive, and renewable energy applications. The molded plastic case provides high insulation resistance (>10GΩ) and withstands 1800VAC dielectric strength, while the non-inductive thick film construction ensures stable performance in high-frequency circuits.

RST Electric presents the Neutral Earthing Resistor – a critical safety component engineered for medium-voltage power systems requiring controlled fault current management. Designed to protect personnel and assets in generator neutrals, transformer star points, and industrial distribution networks, this Neutral Earthing Resistor limits earth fault currents to predetermined safe levels while maintaining system continuity. Covering rated system voltages from 6.3kV to 35kV and fault currents from 10A to 2000A, it accommodates diverse applications including power plants, offshore platforms, renewable energy farms, and mining operations. Available with time ratings from 5 to 60 seconds and resistance values from 1Ω to 9999Ω, this Earthing Resistor features corrosion-resistant stainless steel grid elements (SUS304/SUS430) housed in rugged enclosures suitable for indoor or outdoor installation. Compliant with IEEE32 and designed to meet IEC standards, it undergoes rigorous impulse voltage testing with BIL ratings up to 170kV. 

RST Electric presents a compact and powerful 200kW 400V Load Bank engineered for accurate AC power system validation. Whether for generator set testing, UPS system commissioning, or industrial power supply evaluation, this 200kW 400V AC Load Bank delivers consistent resistive loading with fast response and comprehensive safety protections. Designed for ease of operation, it supports both local HMI control and remote monitoring via RS485/Modbus. Built with a rugged chassis and forced air cooling, it ensures reliable performance in continuous-duty applications. Contact us for custom configurations including IP-rated enclosures and advanced metering options.

RST Electric is a professional manufacturer of Dynamic Braking Resistors in China, having been deeply involved in this field for 15 years. The BR-C series dynamic braking resistors we have launched are specifically designed for heavy industrial scenarios such as port machinery and cranes. We use SUS304/SUS430 stainless steel resistor components, with a protection level of IP20/IP54. The power ranges from 1kW to 200kW, and the voltage ranges from 48V to 1200V. They are suitable for harsh environments, ensuring safe and efficient energy consumption, prolonging equipment lifespan, and are exported to 40 countries around the world.