The E-trAC® WF2 sensorless vector drive is a general-purpose ac drive that offers flexibility and ease of use, says the company. In addition to constant-torque applications, the drive can be configured as a V/Hz control for use with fans and pumps. Currently available in a power range of 1 to 5 hp at 230 vac and 2 to 5 hp at 460 vac, the drive includes an eight-button keypad and two-line by 16-character display. Network connectivity is built into each unit. TB Wood’s Inc., attn: Rick Kirkpatrick, 440 N. Fifth Ave., Chambersburg, PA 17201; 888-829-6637; 717-264-6420 (fax); (Web site).