Products

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 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 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. 

RST Electric presents the Vertical Ceramic Wirewound Resistor – a space-saving power resistor designed for high-density PCB layouts and chassis mounting. Featuring a rectangular ceramic housing with radial leads, this Vertical Ceramic Resistor stands upright, minimizing board footprint while delivering excellent heat dissipation and mechanical stability. With power ratings from 1W to 20W and resistance values ranging from 0.1Ω to 100kΩ (wirewound/metal film variants), it suits applications including switch-mode power supplies, motor drives, home appliances, and industrial controls. Available in standard vertical (SQM) and special wide-body (WS/WB) configurations, this Radial Lead Power Resistor meets rigorous quality standards including solderability, dielectric withstand, temperature cycling, and endurance testing. 

RST Electric presents the Radial Cement Resistor – a high-power, robust resistor designed for chassis or heatsink mounting in demanding industrial applications. Unlike standard PCB-mounted resistors, this Ceramic Encased Resistor features a rectangular ceramic body with both radial leads and integral mounting brackets, allowing secure attachment to metal chassis or heatsinks for superior thermal management. With power ratings from 10W to 50W and resistance values from 0.1Ω to 100kΩ (wirewound/metal film), it is ideal for power supplies, motor drives, battery chargers, and industrial equipment where reliable heat dissipation is critical. Available in tolerances from ±1% to ±10% with a low temperature coefficient (≤ ±250 ppm/°C), this Chassis Mount Power Resistor meets rigorous performance standards including solderability, dielectric withstand, vibration, and endurance testing.

RST Electric presents the Axial Cement Wirewound Resistor – a versatile, high-power through-hole resistor designed for applications demanding reliable performance in a standard axial-lead package. Encased in a flame-retardant ceramic housing with inorganic silica filler, this Axial Cement Resistor delivers excellent heat dissipation, low noise, and a wide operating temperature range. With power ratings from 5W to 100W and resistance values ranging from 0.1Ω to 100kΩ (wirewound/metal film variants), it is ideally suited for power supplies, motor controls, industrial drives, and consumer electronics. Available in tolerances from ±1% to ±10% with a low temperature coefficient (≤ ±250 ppm/°C), this Power Wirewound Resistor meets rigorous performance standards including solderability, dielectric withstand, vibration, and endurance testing.