WH116AK-1

WH116AK-1 High-Power, High-Current Contact-Type Impedance Adjustment Component

Product Overview

WH116AK-1 is a contact-type impedance adjustment component specifically designed to handle high-power and high-current loads. It supports both SPDT and SPST switching modes, enabling direct control of high-power circuits without the need for complex semiconductor inverters. Featuring silver contacts, this product effectively increases the switch’s current-carrying capacity. By adjusting the effective resistance, it can achieve current shunting or voltage division in the circuit. With exceptional heat resistance and surge-current protection, it addresses the failure issues commonly encountered by standard electronic potentiometers under high-current conditions, making it an ideal component for regulating high-power circuits in industrial applications.

Technical Principle

WH116AK-1 operates on the principle of contact-type impedance adjustment, with a core structure featuring silver contacts. The high conductivity and excellent high-temperature resistance of silver significantly enhance the switch’s current-carrying capability. By varying the internal effective resistance, the component enables current shunting or voltage division, thereby precisely controlling the current and power output of high-power circuits. Compared to semiconductor-based regulation schemes, this component requires no additional inverter; it can be directly connected to the circuit to achieve power regulation, offering a simpler structure and greater reliability, well-suited to the demanding requirements of industrial environments.

Key Performance Parameters

1. Rated Power Range: 1000W to 2500W
2. Rated Current Capacity: 4A to 10A
3. Insulation Resistance: ≥ 100MΩ (DC 500V)
4. Switch Contact Resistance: ≤ 50mΩ
5. Switch Types: Available in SPDT and SPST configurations
6. Extreme Environmental Performance: Can operate continuously at full load for ≥ 30,000 cycles in a 100℃ environment without electrical breakdown
7. Certifications: VDE, CB, NEMKO industrial-grade certifications

Core Competitive Advantages

1. High-Power, High-Current Handling: Stably accommodates 1000–2500W power and 4–10A current, meeting the demands of industrial high-power circuit regulation—far exceeding the load capacity of conventional electronic potentiometers.
2. Superior Heat Resistance and Surge Protection: Exhibits outstanding thermal stability, capable of continuous full-load operation for ≥ 30,000 cycles in a 100℃ extreme environment without breakdown, with exceptionally strong surge-current resistance, ensuring excellent performance under complex operating conditions.
3. No Need for Additional Equipment: Eliminates the requirement for complicated semiconductor inverters; can be directly connected to high-power circuits for regulation, simplifying circuit design and reducing overall equipment costs.
4. Low Contact Resistance Design: With switch contact resistance ≤ 50mΩ, energy losses are minimal, ensuring precise and efficient power regulation while minimizing energy waste.
5. Authoritative Industrial Certifications: Holds VDE, CB, and NEMKO industrial-grade certifications, complying with stringent industrial safety standards and meeting regulatory requirements across various industrial settings.
6. Low Maintenance Costs: Stable performance reduces overall maintenance costs by more than 40%, decreasing equipment downtime and repair frequency, thus boosting production efficiency.

Core Product Value

1. Solves Common Potentiometer Failure Issues Under High Current: Completely avoids problems such as resistor wire burnout, substrate carbonization, and brush welding that plague ordinary electronic potentiometers under high-current conditions, ensuring continuous stable circuit operation.
2. Simplifies High-Power Circuit Design: Eliminates the need for additional semiconductor inverters, enabling direct high-power circuit regulation, reducing circuit complexity and associated equipment costs.
3. Adaptable to Extreme Industrial Environments: Operates stably for ≥ 30,000 cycles at 100℃, meeting the long-term usage needs of industrial electric furnaces, welding equipment, and other high-temperature applications.
4. Reduces Long-Term Operating Costs: Overall maintenance costs are reduced by more than 40%, cutting expenses related to equipment repair and replacement, thereby enhancing enterprise productivity.

Target Customer Base

Heavy machinery manufacturers, power equipment producers, traditional old-style welding equipment makers, laboratory high-voltage power supply developers, and various industrial equipment manufacturers involved in high-power circuit regulation can all adopt WH116AK-1 as their core power-regulating component, aligning with the high-power circuit design requirements of their products.

Typical Application Scenarios

1. Rough Temperature Regulation for Industrial Electric Furnaces: Serving as the core power-regulating component for electric furnaces, it adjusts impedance to achieve coarse temperature regulation within the furnace, meeting the high-power load demands of industrial electric furnaces and ensuring stable heating temperature control.
2. Speed Regulator for Old-Style DC Motors: Connected to DC motor speed-control circuits, it adjusts impedance to modify motor input current, achieving smooth speed regulation suitable for the high-current operating conditions of older DC motors.
3. Load Testing for High-Power Analog Power Supplies: In laboratory high-voltage power supply development scenarios, it functions as a load-regulating component, precisely controlling test circuit power and current to provide a stable load environment for power performance testing.
4. Current Regulation for Arc Welding Machines: Integrated into arc-welding machine circuits, it adjusts impedance to regulate welding current levels, meeting diverse welding scenario current requirements and ensuring operational stability.
5. High-Power Dimmer: Used in dimming circuits for industrial-grade high-power lighting systems, directly regulating input power to lighting devices to achieve smooth brightness adjustments, suitable for high-power industrial lighting loads.

Solutions to Industry Pain Points

In the field of industrial high-power circuit regulation, conventional electronic potentiometers face numerous unresolved pain points: first, excessive local Joule heating under high-current conditions often leads to resistor wire burnout, substrate carbonization, or brush welding, resulting in circuit failure; second, limited load capacity makes them unsuitable for circuits exceeding 1000W; third, poor heat resistance drastically shortens their service life in high-temperature industrial environments. WH116AK-1 has been specifically engineered to address these challenges, leveraging its silver-contact structure, high-power handling capability, and superior heat resistance to completely eliminate the failure issues of ordinary potentiometers. Moreover, it can directly control high-power circuits without requiring additional inverters, simplifying system design and providing industrial equipment with a stable and reliable power-regulation solution.

Frequently Asked Questions (FAQ)

Q1: What switching modes does WH116AK-1 support?
A: This impedance adjustment component supports both SPDT and SPST switching modes, allowing selection based on different circuit design needs and adapting to diverse industrial circuit scenarios.
Q2: What are the core advantages of WH116AK-1 compared to conventional electronic potentiometers?
A: Conventional electronic potentiometers cannot handle high-power, high-current loads and are prone to failures such as resistor wire burnout, whereas WH116AK-1 can stably accommodate 1000–2500W power and 4–10A current, boasts exceptional heat resistance and surge-protection capabilities, allows direct control of high-power circuits without additional inverters, and holds authoritative industrial certifications, delivering superior stability and compliance.
Q3: How is the product’s insulation performance?
A: WH116AK-1 features an insulation resistance of ≥ 100MΩ (DC 500V) and a switch contact resistance of ≤ 50mΩ, demonstrating excellent insulation performance that effectively ensures circuit safety and prevents risks such as leakage.
Q4: Is the product suitable for high-temperature industrial environments?
A: Absolutely. This component can operate continuously at full load for ≥ 30,000 cycles in a 100℃ extreme environment without electrical breakdown, exhibiting outstanding heat resistance and meeting the long-term usage needs of industrial electric furnaces, welding equipment, and other high-temperature applications.
Q5: What certifications does the product hold?
A: WH116AK-1 possesses VDE, CB, and NEMKO industrial-grade certifications, complying with stringent industrial safety standards and satisfying the regulatory requirements of most regions worldwide.