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1.4.4. The housing has a sound collected from a bent sheet metal structure. The front part of the housing has a
control panel and display.
1.4.4.1. There is provided a holes on the side walls for ventilating electrical equipment disposed in the housing.
1.4.4.2. All operating tester units are in the internal cavity of the housing. A fusible safety device is mounted
on the rear wall in a special holder.
1.4.4.3. Fusible safety device holder is marked to indicate the rated current and type of fusible safety device.
The holder design eliminates access to parts of the tester, which can be life-threatening, when replacing a
fusible safety device.
1.4.4.4. The temperature of the housing bottom during continuous tester operation is normally not
60 °C.
1.4.5. A general view of the control panel display is shown in Figure 4.
Figure 3. Control panel display