Reliable resistor solutions are essential for controlling electrical energy, managing excess power, and supporting stable operation in industrial equipment. RMS Co., Ltd., a metal clad resistor manufacturer, offers a range of metal clad resistors and aluminum resistors designed for different power, resistance, mounting, and thermal requirements.
The RMS portfolio includes the LCA Series High Power Resistor Assemblies, MBH and MBV Series Mini Braking High Power Resistors, and RH10 Series Aluminum Housed Chassis Mount Resistors. These products provide different configurations for engineers selecting resistor solutions according to electrical load, resistance value, tolerance, temperature characteristics, installation conditions, and application requirements.
How Metal Clad Resistors Support High-Power Applications
In industrial power systems, resistors convert electrical energy into heat. As the amount of power being dissipated increases, thermal management becomes an important part of resistor selection because operating temperature can affect resistance characteristics and long-term component performance.
Metal clad and aluminum housed designs provide a mechanically robust package that can be integrated into industrial equipment. Depending on the resistor and installation method, the housing or mounting surface can also form part of the system’s thermal management strategy.
For this reason, engineers should consider power rating, resistance range, tolerance, temperature coefficient of resistance (TCR), mounting conditions, ambient temperature, and expected electrical load together rather than selecting a resistor based on nominal resistance alone.
LCA Series High Power Resistor Assemblies
The LCA Series provides a solution for industrial systems requiring significant power dissipation. With power ratings from 1 kW to 4.2 kW, the series is intended for applications where conventional low-power resistors cannot provide the required power-handling capability. The original RMS content specifies the following values for this series.
LCA Series Key Specifications
- Product Type: High Power Resistor Assemblies
- Power Rating: 1 kW to 4.2 kW
- Resistance Range: 6 Ω to 864 Ω
- Tolerance: ±5%, ±10%
- TCR: 260 ppm/°C maximum
Why These Specifications Matter
Power rating indicates the amount of electrical power the resistor is designed to dissipate under specified operating conditions. Resistance value affects the relationship between voltage, current, and energy dissipation within the circuit.
Tolerance indicates the permitted variation between the nominal and actual resistance value. Engineers should consider this variation when resistance value can influence current, voltage, or power-control characteristics.
TCR describes how resistance changes as temperature changes. A specified TCR of 260 ppm/°C maximum therefore provides another parameter engineers can consider when evaluating resistance stability across the expected operating temperature range.
MBH and MBV Series Mini Braking High Power Resistors
The MBH and MBV Series are designed for braking applications where electrical energy generated during deceleration needs to be dissipated effectively. Braking resistors are commonly used with motor drives, variable frequency drives, elevators, industrial machinery, and other motion-control equipment.
During deceleration, regenerative electrical energy can be returned from the motor to the drive system. A braking resistor provides a means of dissipating this energy as heat, supporting controlled deceleration and helping the drive system manage excess electrical energy.
Their compact design also makes the MBH and MBV Series suitable for equipment where installation space is limited.
MBH and MBV Series Key Specifications
- Product Type: Mini Braking High Power Resistors
- Power Rating: 1 kW to 2.9 kW
- Resistance Range: 4 Ω to 240 Ω
- Tolerance: ±5%, ±10%
- TCR: 260 ppm/°C maximum
Engineering Considerations for Braking Resistors
Selecting a braking resistor requires more than choosing a resistor with a sufficiently high-power rating. Engineers should also consider the resistance required by the drive system, expected braking energy, braking frequency, thermal conditions, and available installation space.
These factors determine the electrical and thermal demands placed on the resistor. The resistor should therefore be evaluated as part of the overall drive and braking system rather than as an isolated component.
RH10 Series Aluminum Housed Chassis Mount Resistors
The RH10 Series is an aluminum housed chassis mount resistor designed for compact electrical and industrial equipment. Aluminum housed resistors can be mounted directly to equipment chassis or suitable heat-dissipating surfaces, providing a practical configuration where dependable resistance and heat management are required in a compact package.
Typical applications can include power supplies, control equipment, industrial electronics, motor systems, and other electrical assemblies.
RH10 Series Key Specifications
- Product Type: Aluminum Housed, Chassis Mount
- Power Rating: 10 W
- Resistance Range: 1 Ω to 6 kΩ
- Tolerance: ±0.5%, ±1%, ±5%, ±10%
- TCR: 260 ppm/°C maximum
Precision and Thermal Considerations
The RH10 Series provides tolerance options down to ±0.5%, giving engineers additional choices where tighter control of the nominal resistance value is required.
Tolerance and TCR should not be interpreted as the same characteristic. Tolerance relates to variation around the specified nominal resistance, while TCR describes resistance variation associated with temperature change.
Installation is also important for an aluminum housed chassis mount resistor. Engineers should evaluate mounting conditions and heat dissipation together with electrical specifications because thermal conditions can influence resistor operation.
Selecting the Right RMS Metal Clad Resistor
The appropriate resistor depends on the electrical, thermal, and mechanical requirements of the application.
The LCA Series provides high-power resistor assemblies for systems requiring significant energy dissipation. The MBH and MBV Series address braking applications where regenerative energy needs to be dissipated. The RH10 Series provides a compact aluminum housed chassis-mount option with multiple tolerance choices.
Engineers should consider:
- Required resistance value
- Power requirements
- Resistance tolerance
- TCR and expected operating temperature
- Continuous, braking, or other load conditions
- Installation and mounting method
- Heat dissipation requirements
- Available installation space
Evaluating these parameters together helps identify a resistor configuration suited to the intended electrical and industrial application.
RMS High Power and Aluminum Resistor Solutions
From high-power resistor assemblies and braking resistors to compact aluminum housed chassis mount designs, RMS provides resistor solutions for different industrial power-control requirements.
The combination of different resistance ranges, power ratings, tolerance options, TCR characteristics, and physical configurations allows engineers to evaluate RMS metal clad resistor products according to their system requirements.
Meet RMS at electronica 2026 in Munich
RMS Co., Ltd. will participate in electronica 2026, taking place from November 10 to 13, 2026, at Messe München in Munich, Germany.
Passive components are among the exhibition categories, providing a relevant setting for RMS and its resistor portfolio. Visitors can meet RMS at Hall A6, Booth 418 to learn more about high-power resistor assemblies, braking resistors, aluminum housed resistors, and other resistor solutions for industrial and electronic applications.
The exhibition also provides an opportunity for engineers and buyers to discuss specific resistance, power, thermal, mounting, and application requirements with RMS.
Event Information
– Event: electronica 2026
– Date: November 10–13, 2026
– Venue: Messe München, Munich, Germany
– Exhibition Area: Passive Components
– RMS Booth: Hall A6, Booth 418
👉 electronica 2026 Official Website
Looking for industrial aluminum resistor solutions in Korea or planning to attend Electronica 2026?
Meet RMS at Hall A6, Booth 418 in Munich or explore the RMS bulk ceramic resistor series online.
Click here to learn more about RMS products.
View more: High Power and Aluminum Housed Resistors for Industrial Applications
