PowerMaster Model 335V Load Box

Model 335V Load Box is a lightweight, battery-powered voltage and current source designed to pair with handheld 3 Series and 6 Series analyzers. It enables phantom load meter testing to 277 VAC and 5 A, CT added burden and ratio testing, direct burden measurement, CT demagnetization, harmonic analysis, and Wh/VAh/VARh/I²h testing, with CAT IV 600V safety.

Product Overview

• Battery-powered current and voltage source for handheld analyzers field use portability.
• Performs phantom load meter testing up to 277 VAC, 5A.
• Enables CT added burden, direct burden measurement, and demagnetization.
• Harmonic analysis with ANSI C12.1 waveforms; CAT IV 600V safety.

Model 335V Load Box delivers a lightweight, battery-powered voltage and current source for PowerMaster 3 and 6 Series analyzers. Generate 69–277 VAC and 100 mA–5 A, perform phantom meter tests, CT added burden, direct burden measurement, demagnetization, harmonic analysis, and Wh/VAh/VARh/I²h testing, with CAT IV 600V safety and calibration verification.

Target Market

Used by electric utilities, metering departments, substation maintenance teams, and revenue protection investigators. Ideal for field verification, substation site testing, meter commissioning, CT burden and ratio checks, and periodic calibration verification where portable, battery-powered voltage and current sources improve productivity and safety.