3011684
Current Transformer
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$194.95 $231.99

This truck part is made by Cummins®. We guarantee that all of our parts are from the OEM (original equipment manufacturer), ensuring a proper fit and quality manufacturing.


DESCRIPTION

The Cummins 3011684 Current Transformer is a component designed for use in commercial trucks. It serves a specific function within the vehicle’s electrical system, contributing to the overall efficiency and safety of truck operations. Understanding its role and significance is important for maintaining and optimizing the electrical systems in commercial trucks.

Basic Concepts of Current Transformers

A current transformer is a device that measures electrical current by utilizing the principles of electromagnetic induction. It consists of a core typically made of iron or ferrite, around which a primary winding (carrying the current to be measured) and a secondary winding (producing the output current) are wrapped. The transformation ratio, which is the ratio of the number of turns in the primary winding to the number of turns in the secondary winding, determines the output current. This allows for the safe and accurate measurement of high currents by converting them into lower, more manageable levels 1.

Purpose of the 3011684 Current Transformer in Truck Operation

The 3011684 Current Transformer plays a role in the operation of a commercial truck by assisting in the monitoring and management of electrical current within the truck’s systems. It provides accurate current measurements, which are vital for the proper functioning of various electrical components and systems. This includes ensuring that the electrical load is distributed efficiently and that any anomalies or overloads are detected promptly 2.

Key Features

The 3011684 Current Transformer is characterized by several key features that enhance its performance and reliability. Its design incorporates a robust core material that ensures efficient electromagnetic induction. The construction materials are chosen for their durability and resistance to environmental factors, which is crucial for the harsh conditions often encountered in commercial truck operations. Additionally, the transformer is engineered to provide precise current measurements, which is fundamental for its role in the truck’s electrical system 3.

Benefits of Using the 3011684 Current Transformer

Incorporating the 3011684 Current Transformer into a truck’s electrical system offers several advantages. It provides improved accuracy in current measurement, which is important for the efficient operation of electrical systems. Enhanced safety is another benefit, as accurate current monitoring helps prevent electrical overloads and potential hazards. Furthermore, the reliability of electrical monitoring is increased, contributing to the overall dependability of the truck’s electrical system.

Installation and Integration

When installing the 3011684 Current Transformer in a commercial truck, it is important to follow guidelines and best practices to ensure proper functionality. This includes selecting an appropriate location for installation, ensuring correct connection procedures, and integrating the transformer with other electrical components in a manner that maintains the integrity of the electrical system. Proper installation is key to achieving accurate current measurements and ensuring the transformer operates as intended.

Troubleshooting and Maintenance

Common issues that may arise with the 3011684 Current Transformer include inaccurate current readings or failure to operate. Troubleshooting steps may involve checking connections, inspecting the core and windings for damage, and ensuring the transformer is correctly integrated into the electrical system. Regular maintenance, such as cleaning and inspecting for wear or damage, can help ensure the longevity and optimal performance of the component.

Safety Considerations

When working with the 3011684 Current Transformer, it is important to observe safety guidelines to prevent electrical hazards. This includes ensuring the electrical system is de-energized before beginning any work, using appropriate personal protective equipment, and following manufacturer recommendations for installation, maintenance, and troubleshooting. Adhering to these safety precautions helps protect both the technician and the equipment.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, emissions, and power generation technologies. With a history of innovation and a commitment to quality, Cummins plays a significant role in the commercial truck industry. The company’s dedication to advancing technology and improving product performance underscores its position as a trusted provider of automotive components.

Cummins Current Transformer 3011684 in NH/NT 855 Engines

The Cummins Current Transformer 3011684 is a critical component in the NH/NT 855 engine series. This part plays a pivotal role in the engine’s electrical system by converting high current levels into a lower, more manageable current for monitoring and control purposes.

In the NH/NT 855 engines, the current transformer is integral to the engine’s diagnostic and monitoring systems. It ensures that the engine control unit (ECU) can accurately measure the current flowing through the engine’s electrical circuits, which is essential for maintaining optimal performance and preventing potential electrical faults.

The NH/NT 855 engines are known for their robust design and reliability, often used in heavy-duty applications. The integration of the Cummins Current Transformer 3011684 ensures that these engines can operate efficiently and safely, providing the necessary data for the ECU to make real-time adjustments and maintain the engine’s performance.

This part is designed to withstand the demanding conditions of heavy-duty engines, ensuring long-term durability and consistent performance. Its precise function is vital for the overall health and longevity of the NH/NT 855 engines, making it a key component in Cummins’ lineup of engine parts.

Role of Part 3011684 Current Transformer in Engine Systems

Integration with Ammeter

The current transformer (CT) part 3011684 is instrumental in accurately measuring the current flowing through the engine’s electrical circuits. When integrated with an ammeter, the CT provides a proportional output that allows the ammeter to display the current without being directly exposed to high voltages. This setup ensures precise current measurement, which is essential for monitoring the engine’s electrical load and ensuring optimal performance.

Interaction with Excitation Control Board (ECB)

In systems utilizing an excitation control board (ECB), the current transformer part 3011684 plays a significant role. The CT monitors the current flowing to the excitation system, providing feedback to the ECB. This feedback loop allows the ECB to adjust the excitation levels dynamically, ensuring that the generator maintains the desired voltage and power output under varying load conditions. The accurate current measurement from the CT helps in fine-tuning the excitation process, leading to more stable and efficient generator operation.

Functionality in Parallel Module Configurations

When engines are configured in parallel modules, the current transformer part 3011684 ensures balanced load distribution. Each module’s current is monitored by the CT, which sends signals to the control system. This allows the system to adjust the load on each module in real-time, preventing overloading and ensuring that all modules operate within their specified parameters. This balanced approach enhances the reliability and longevity of the engine system.

Contribution to Power Factor Controller

The current transformer part 3011684 is also vital in systems equipped with a power factor controller. By accurately measuring the current, the CT provides essential data that the power factor controller uses to adjust the phase relationship between voltage and current. This adjustment helps in optimizing the power factor, reducing reactive power, and improving the overall efficiency of the engine system. The precise current data from the CT ensures that the power factor controller can make accurate and timely adjustments, leading to more efficient energy usage.

Conclusion

The Cummins 3011684 Current Transformer is a vital component in the electrical systems of commercial trucks and heavy-duty engines. Its role in accurately measuring and managing electrical current ensures the efficient and safe operation of these systems. By understanding its features, benefits, and integration within engine systems, technicians and operators can better maintain and optimize the performance of their vehicles.


  1. Ferrari, A., & Pizzo, P. (2022). Injection Technologies: Mixture Formation Strategies. SAE International.

  2. Halderman, J. D. (2012). Automotive Principles: Diagnosis and Service. Prentice Hall.

  3. Osgood, L., Cameron, G., & Christensen, E. (2024). Engineering Mechanics: Statics. Creative Commons.

SPECIFICATIONS

Hazardous Material
Non-Hazardous (NOI, ICE/Auto)
Package Dimensions
5.25 x 2.63 x 5.25 in
Weight
0.9 lb
* This information is provided as is and may be out of date. Please contact us or the manufacturer to verify warranty coverage.
* Variable geometry turbocharger and electronic actuator repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after October 1, 2018.
* Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), Selective Catalyst Reduction (SCR) catalyst, and Electronic Control Module (ECM) repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after January 1, 2020.
* These restrictions are only applicable to New parts and ReCon parts coverages for the components listed above sold to a customer in the US or Canada. All other coverages are excluded. All other regions are excluded.