Cheap And Discounts Original New PLC Frequency Converter FR-F840-00023-2-60 FR-F840-0.75/2.2K/3.7/5.5K/7.5/11/18.5/22/30KW Wholesale. Buy Directly From Merchant ChengMao Automation Industry Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.