China Rack Mounted Load Bank Manufacturer, Supplier, Factory

RST Electric presents TO220 Thick Film Power Resistor – a compact, high-performance resistor designed for power electronics requiring efficient thermal management and easy assembly. Housed in a standard TO220 plastic package with a metal mounting tab, this TO220 Power Resistor delivers 35W (PRT35) or 50W (PRT50) at 25°C case temperature when properly heatsink mounted. With a wide resistance range from 0.1Ω to 1MΩ and tolerances as tight as ±0.5%, it is ideal for switching power supplies, snubber circuits, power amplifiers, and voltage regulation 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 RLC Load Bank – a precision power testing solution designed for applications requiring realistic simulation of complex electrical loads. Integrating resistive (R), inductive (L), and capacitive (C) elements in a single unit, this RLC Load Bank enables accurate emulation of power factors from 0.65 to 1.0, making it ideal for testing inverters, UPS systems, AC power sources, and renewable energy equipment. With three-phase independent adjustment, 0.1kW/0.1kvar load stepping, and ±3% loading accuracy, it delivers exceptional flexibility for R&D laboratories, quality assurance, and production testing.

RST Electric presents Low Resistance Shunt – a precision, high-current current sensing solution designed for demanding automotive, industrial, and renewable energy applications. Utilizing vacuum electron beam welding technology with pure copper electrodes, this Current Shunt delivers exceptional stability, high pulse withstand capability, and ultra-low resistance values from 0.1mΩ to 0.667mΩ. With power ratings up to 15W and tolerances as tight as ±0.5%, it is ideal for battery management systems (BMS), motor drives, inverters, and high-frequency power conversion. The all-metal construction features a pickled and passivated surface for superior corrosion resistance and weatherability, while ultra-low inductance (<5nH) and minimal thermal EMF ensure accurate measurement in fast-switching circuits. Fully compliant with RoHS and Reach, this High Precision Shunt is available in multiple form factors with custom specifications supported. 

RST Electric presents the Grounding Resistor – a critical safety device engineered for medium-voltage power systems requiring fault current limitation. Designed to protect personnel and equipment in generators, transformers, and distribution networks, this Grounding Resistor limits earth fault currents to safe levels while maintaining system stability. With rated system voltages from 6.3kV to 35kV and fault current ratings from 10A to 2000A, it accommodates diverse utility and industrial applications. Available with time ratings from 5 seconds to 60 seconds and resistance values from 1Ω to 9999Ω, it features robust stainless steel grid elements (SUS304/SUS430) housed in corrosion-resistant enclosures. Compliant with IEEE32 standards and tested for BIL up to 170kV, it ensures reliable performance in the most demanding environments. 

RST Electric introduces the classic Wirewound Rheostat – a manually adjustable power resistor designed for applications requiring smooth, continuous variation of current or voltage. Featuring a rugged ceramic core with exposed wirewound element and a sliding contact arm, this Wirewound Rheostat delivers reliable performance in motor speed control, lighting dimming, laboratory experiments, and industrial equipment calibration. With power ratings from 25W to 500W and resistance ranges from 1Ω to 5kΩ (tolerance ±5%), it provides a simple, cost-effective solution for hands-on adjustment in educational, industrial, and maintenance environments. 

RST Electric presents the Horizontal Ceramic Resistor – a rugged, general-purpose power resistor designed for high reliability in industrial and consumer applications. Encased in a flame-retardant ceramic housing with a vertical (axial) lead configuration, this Horizontal Ceramic Resistor delivers excellent heat dissipation, low noise, and wide operating temperature range. With power ratings from 1W to 100W and resistance values spanning 0.1Ω to 100kΩ (wirewound) and 100Ω to 100kΩ (metal film), it suits applications including power supplies, motor controls, home appliances, and test equipment. Available in tolerances from ±1% to ±10%, this SQP Power Resistor meets stringent performance criteria including solderability, overvoltage withstand, temperature coefficient, vibration, and endurance testing.