17
Fig. 15 Endurance to over-current
2-3-6 Vibration-proof Characteristics
When a strong vibration is applied to the mounting board, the contacts of the contactor and the thermal overload
relay may cause malfunction. Therefore, try to prevent vibration to the mounting board by all means.
The malfunction limits of starter, contactor and thermal overload relay are over 2 (g).
Vibration acceleration (g) = 0.002 × (Frequency (Hz))
2
× Double amplitude (mm)