The Class H tester is a large floor-standing system, so the lab should reserve enough room for safe operation and access. The machine itself measures roughly 77.2 x 26.8 x 78.8 inches (196 x 68 x 200 cm) and weighs about 1765 lbs (800 kg). Because of this weight, the machine should be placed on a solid, stable floor capable of supporting heavy equipment. A small buffer zone around the frame is recommended so operators can load specimens, check the enclosure and access the pendulum area without obstruction.

For power, the unit requires a standard AC 220V ±10%, 50Hz, 100W supply. Labs in regions with different power standards may need a compatible electrical line or transformer. The machine does not require high current, but it should have a dedicated, stable power source to avoid voltage drops during operation.

Good ventilation, controlled indoor temperature and minimal vibration near the installation area help maintain consistent test performance and protect the mechanical components over long-term use.

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