タマオーム List of Products and Services

The "Standard Load Unit / Switchable Standard Load Unit" is a tower unit type load resistor that combines several to dozens of our resistors, available in configurations from 1 stage to 4 stages. We offer a lineup including the "Standard Load Unit A," which allows for continuous application of 1KW per stage, and the "Switchable Standard Load Unit B," which allows for switching between current and voltage. 【Features of Standard Load Unit A】 ■ Continuous application of 1KW per stage is possible ■ Configurations can be increased or decreased from 1 stage to 4 stages (1KW to 4KW) ■ Equipped with a cooling fan *For more details, please refer to the PDF materials or feel free to contact us.

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The "KW/KWN" is a winding resistor with excellent short-term overload characteristics, made of non-combustible heat-resistant cement sealing. It can be manufactured with a resistance value tolerance of ±1% (F). It features a beautiful hard anodized finish and a high heat dissipation structure that excels in long-term stability. The outer dimensions are slimmer than the RH series, and various characteristics have improved compared to the IRH series, allowing for significantly shorter delivery times. 【Features】 ■ Resistance value tolerance can be manufactured up to ±1% (F) ■ Beautiful hard anodized finish ■ Excellent short-term overload characteristics ■ Inductance-free winding structure (KWN) with improved frequency characteristics ■ High heat dissipation structure that excels in long-term stability *For more details, please refer to the PDF document or feel free to contact us.

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The "Multi-functional Inductive Load Device" is a product that enables easy simulation testing of inductive circuits, which could not be satisfactorily performed with conventional load resistors. During characteristic and evaluation tests of electronic components, relays, batteries, power supplies, etc., the setup of inductive circuits can be done quickly. Furthermore, it can be designed and manufactured in shapes and specifications tailored to customer needs. Please feel free to consult us. 【Features】 ■ Inductive load device compatible with both AC and DC ■ Dedicated AC and DC models can also be produced ■ Voltage, current, power factor, and time constant can be switched via a front panel switch ■ Custom-made to cover a wide range of voltage and current values ■ Improvement of power factor and time constant changes by selecting appropriate components *For more details, please refer to the PDF document or feel free to contact us.

• Electrical Equipment Testing

The "TRV" is a power-type variable resistor equivalent to JIS:PRS. This product allows for the change of resistance value by rotating the brush. For the resistance value, please specify the required maximum resistance from the resistance range in the catalog. Additionally, it is possible to connect to the same axis using a coupling device. 【Features】 ■ Equivalent to JIS:RPS ■ Variable resistance by rotating the brush ■ Coated with flame-retardant paint ■ Successor to RPS *For more details, please refer to the catalog or feel free to contact us.

• Wiring devices
• Piping and electrical wiring materials

The "TRR" is a ribbon resistor suitable for high current and low resistance values. The ribbon-shaped resistance wire used in this product has a high heat dissipation effect, making it suitable for high current applications with low resistance values, despite its small size. As an option, it can also be manufactured with a slide band or intermediate terminals. 【Features】 ■ Uses ribbon-shaped resistance wire for good heat dissipation efficiency ■ Compact design suitable for high current and low resistance values ■ Coated with non-flammable paint ■ RoHS compliant *For more details, please refer to the catalog or feel free to contact us.

• Wiring devices
• Piping and electrical wiring materials

The "TRH-HH" is a resistor that is a successor to the "RWH-HH," allowing for the installation of fixed terminals in the middle. Depending on the application, it is necessary to specify the number of intermediate terminals and the resistance value between them. It is also coated with flame-retardant paint and complies with RoHS, ensuring excellent safety and environmental performance. 【Features】 ■ Allows for the installation of fixed terminals in the middle ■ Specification of the number of intermediate terminals and the resistance value between them is required based on the application ■ Coated with flame-retardant paint ■ RoHS compliant ■ Successor to the RWH-HH *For more details, please refer to the catalog or feel free to contact us.

• Wiring devices
• Piping and electrical wiring materials

The "TRH-A" is a resistor that is a successor to the "RWH-A," which allows for resistance value adjustment using an adjustment band. By securing the adjustment band to the exposed part of the resistance wire between the fixed terminals, it enables easy adjustment of the resistance value, making it suitable for testing purposes. It is also coated with a non-flammable paint and complies with RoHS, ensuring excellent safety and environmental performance. 【Features】 ■ Resistance value can be adjusted with the adjustment band ■ Suitable for testing purposes due to adjustable resistance value ■ Coated with non-flammable material ■ Replacement for RWH-A *For more details, please refer to the catalog or feel free to contact us.

• Power Equipment
• Wiring devices

The "TRH" is a resistor that serves as an alternative successor to the traditional enamel resistors (RWH type) with the same specifications, incorporating improvements in detail. It does not suffer from degradation of the resistance wire due to high-temperature treatment during the manufacturing process, allowing for a wider range of resistance values compared to the RWH type. Additionally, it features band terminals, which provide higher terminal strength compared to the RWH type. 【Features】 ■ Equivalent to JIS RWH ■ Same specifications as traditional enamel resistors (RWH type) ■ Current standard product with detailed improvements ■ Capable of manufacturing a wide range of resistance values ■ Uses band terminals for higher terminal strength *For more details, please refer to the catalog or feel free to contact us.

• Wiring devices
• Piping and electrical wiring materials

This catalog is a product guide from Tamaohm Co., Ltd., which primarily manufactures and sells power-type wire-wound resistors and resistor-type load devices, as well as designing, manufacturing, and assembling circuit boards. We offer a wide range of products, including resistors such as "TRH" and "RWH," as well as load resistors like "Standard Load Unit A/AF" and "Switchable Standard Load Unit B." 【Contents】 ■ Notes ■ Specifications ■ Product Information ■ Sales Information - One Stop ■ Sales Information - Custom Load Devices and Product Line ■ We cherish and nurture a single trust. *For details, please request materials or view the PDF data from the download section.

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