WH116AK-9

WH116AK-9 High-Power, High-Current Contact-Type Impedance Regulation Component

Product Overview

The WH116AK-9 is a contact-type impedance regulation component specifically designed to handle high-power and high-current loads. It offers two switch configurations—SPDT and SPST—to meet diverse circuit control requirements. Featuring silver contacts, it effectively increases the switch’s current-carrying capacity. By adjusting the effective resistance, it enables current shunting or voltage division control, allowing direct control of high-power circuits without the need for complex semiconductor inverters. With exceptional heat resistance and surge-current protection, it is widely suited for industrial-grade high-power applications and has passed VDE, CB, and NEMKO industrial certifications. Its performance is stable and reliable, meeting stringent industrial safety standards.

Technical Principle

The WH116AK-9 operates on the principle of impedance regulation, with a core design featuring silver contacts. The high conductivity and wear resistance of silver significantly enhance the switch’s current-carrying capacity, preventing contact issues caused by oxidation or wear. By varying the effective resistance in the circuit, it achieves current shunting or voltage division, precisely controlling the operating state of high-power loads. Compared to control schemes relying on semiconductor inverters, this impedance regulation component requires no additional inverter equipment, enabling direct connection to high-power circuits for seamless adjustment, simplifying the circuit structure while reducing the risk of failure.

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 Configurations: SPDT and SPST options available
6. High-Temperature Stability: Can operate continuously at full load for ≥ 30,000 cycles in extreme temperatures up to 100℃ without electrical breakdown
7. Certifications: VDE, CB, and NEMKO industrial certifications

Core Advantages

1. High-Power, High-Current Capability: With a rated power range of 1000W–2500W and a rated current capacity of 4A–10A, it stably handles high-power, high-current loads, meeting the circuit control needs of heavy-duty industrial equipment.
2. Durable Silver Contact Design: The use of silver contacts not only raises the upper limit of the switch’s current capacity but also enhances its wear resistance and oxidation resistance, extending the component’s service life and reducing maintenance frequency.
3. Exceptional Heat and Surge Resistance: With outstanding heat resistance, it can operate continuously at full load for ≥ 30,000 cycles in extreme temperatures up to 100℃ without electrical breakdown; its strong surge-current protection ensures safe operation even under sudden current surges.
4. No Need for Additional Inverter Equipment: It directly controls high-power circuits without requiring complex semiconductor inverters, simplifying circuit design and lowering overall equipment costs and potential failure points.
5. Authoritative Industrial Certifications: Certified by VDE, CB, and NEMKO, it complies with international industrial safety standards, satisfying compliance requirements for industrial equipment in most global markets.
6. Low Maintenance Costs: Stable performance reduces overall maintenance expenses by more than 40%, cutting down on repair and replacement costs over long-term use.

Core Product Value

1. Addresses the common issue of ordinary electronic potentiometers easily failing under high current, providing a stable and reliable impedance regulation solution for high-power circuits.
2. Eliminates the need for additional inverter equipment, simplifying high-power circuit control designs and reducing overall equipment costs.
3. With superior heat and surge resistance, it ensures continuous, stable operation of industrial equipment under extreme conditions.
4. Backed by authoritative industrial certifications, it helps industrial equipment smoothly enter global markets while minimizing compliance risks.
5. Significantly lowers comprehensive maintenance costs, reducing long-term operational expenses for businesses.

Target Customer Groups

Heavy machinery manufacturers, power equipment producers, traditional old-style welding equipment makers, laboratory high-voltage power supply developers, and various industrial equipment manufacturers requiring high-power, high-current circuit regulation solutions can all adopt the WH116AK-9 as a core circuit regulation component to meet their products’ high-power control needs.

Application Scenarios

This component finds wide application across various high-power industrial settings, particularly suitable for coarse temperature adjustment in industrial furnaces, speed control of older DC motors, high-power analog power supply load testing, current regulation in arc welders, and high-power dimmer circuits. In industrial furnace applications, impedance adjustment enables coarse temperature control within the furnace; in older DC motor speed controllers, changing circuit resistance adjusts motor speed; during high-power analog power supply load tests, precise adjustment of load impedance simulates different power supply operating conditions; in arc welding equipment, it regulates output current to suit varying welding requirements; and in high-power dimmers, it controls current flow in lighting circuits to adjust light intensity.

Solving Industry Pain Points

In the field of high-power circuit regulation, ordinary electronic potentiometers suffer from clear performance limitations: when subjected to high currents, localized Joule heating can cause resistor filaments to burn out, substrates to carbonize, or brush welds to fail, adversely affecting normal equipment operation and increasing maintenance costs and downtime. The WH116AK-9 addresses this core pain point with a high-power-bearing structure and silver-contact design, enabling stable handling of high currents and heavy loads while effectively avoiding the damage issues common to standard potentiometers. Additionally, its exceptional heat resistance allows it to withstand prolonged operation under high-temperature conditions, eliminating the need for frequent component replacements and reducing overall maintenance costs by more than 40%, thoroughly resolving the problem of component vulnerability in high-power circuit regulation scenarios.

Frequently Asked Questions (FAQ)

Q1: What switch configurations does the WH116AK-9 support?
A: This contact-type impedance regulation component offers SPDT and SPST switch configurations, allowing selection based on specific circuit control needs.
Q2: What are the product’s rated power and current ranges?
A: The component’s rated power spans 1000W to 2500W, with a rated current capacity ranging from 4A to 10A, making it well-suited for high-power, high-current load scenarios.
Q3: Does the product have industrial safety certifications?
A: The WH116AK-9 has passed VDE, CB, and NEMKO industrial certifications, complying with rigorous international industrial safety standards and meeting compliance requirements for industrial equipment.
Q4: How does this component perform in high-temperature environments?
A: With exceptional heat resistance, it can operate continuously at full load for ≥ 30,000 cycles in extreme temperatures up to 100℃ without electrical breakdown, reliably handling high-temperature conditions in industrial settings.
Q5: What advantages does this component offer compared to ordinary electronic potentiometers?
A: Ordinary electronic potentiometers often experience resistor filament burnout or substrate carbonization under high current, whereas the WH116AK-9 is specifically engineered for high-power, high-current loads, effectively enduring such conditions while avoiding these failures. Moreover, it eliminates the need for additional semiconductor inverters, simplifying circuit design and reducing maintenance costs.