6/24/2015 3:00 PM | |
Posts: 467 Rating: (59)
|
Hello,
There is no GRD-connection necessary (or available) on 3RW402-4 and 3RW407 softstarters.
A ground is just necessary for 3RW405 because of the integrated fan (metal).
Please check the Operating instructions:
https://support.industry.siemens.com/cs/ww/en/view/19501475
Environmental conditions:
https://support.industry.siemens.com/cs/ww/en/view/24023472
The 3RW30, 3RW40 and 3RW44 Soft Starters
work in a humidity of minimum 10% up to maximum 95% according the standard IEC
60721-3-3. regards LesPaul |
Follow us on