Voltage Drop Calculator. vs WH Control

Perform accurate Voltage Drop and Wire Sizing calculations for both NEC® (National Electrical Code) and IEC standards. Built for electricians, engineers, and contractors who need reliable results on the go. Voltage Drop Calculator • Dual standards: Switch between NEC (AWG/Imperial) and IEC (mm²/Metric) • Enter voltage, current, run length, and power factor • Supports continuous load (125%), grouping, and ambient temperature corrections • Copper or Aluminum conductors for single-phase and three-phase systems • Detailed results including ampacity, derating, voltage drop, and load voltage • Automatic compliance checks (e.g., ≤ 3% for branch circuits) Wire Size Calculator (Reverse) • Calculates required wire size for a target voltage drop % • Suggests optimal AWG, kcmil, or mm² • Uses NEC Chapter 9, Table 9 (AC impedance) with DC fallback Professional Tools • Wire converter (AWG/kcmil ↔ mm²) • Generate and share PDF reports • Handy electrical formula cards • Localized in English, Spanish, French, German, Italian, Dutch, Portuguese, and Chinese

This APP is mainly used for WH series SMS Controller products. The traditional SMS controller needs to manually edit commands, which is cumbersome and easy to forget. Now WH Control perfectly solves this problem. You can easily configure your device with just one click to achieve what you want required function. Main Features: You can assign an image to each device to make it easer to identify which one to activate. You can add /inquiry /edit /delete your devices and users. You can change the all users password. You can assign a time limit to each user for device control You can synchronize your device's clock with your smartphone's clock. You can change the relay closing time and siren output time. You can arm and disarm your device easily. You can inquiry alarm and operation records You can set up automatic reporting of SMS to prevent invalid SIMCARD You can set and customize power failure alarm SMS and time You can check device states easily.