Is it sufficient to plug TOS5300 series into a grounded outlet for proper grounding?

Yes, connecting TOS5300 series to a properly grounded 3-pin outlet using the included power cord is sufficient for proper grounding.

Here’s why:

1. TOS5300 is grounded through the ground wire of the power cord.
2. Use a Type D grounding outlet (If used in countries other than Japan, be sure to comply with local electrical safety standards).
3. When properly connected, the chassis frame and LOW side are at ground potential.

No additional grounding is required with this setup.