It is a brand new PB-6 Type  Hall Effect Pot Box

 

 

Hall effect sensors are based on non-contact magnetic proximity sensing, so have a virtually unlimited service life. The output is a linear 0-5V signal, so will work with any controller requiring a 0-5V throttle input (such as Kelly, ZEVA, Siemens, UQM, etc). This throttle box shares the same physical dimensions as the common Curtis PB-5/6 and the same high quality stainless steel construction. They also have a microswitch with Normally Open and Normally Closed contacts, useful for redundant safety (e.g switching your controller Enable pin or engaging the main contactor). Wiring: Blue: +5V White: Hall signal (0-5V output) Brown: 0V / ground    We will send it within 2 business days after recieving your payment, we will send by Flat Air Mail. Please allow 5--11 business days for delivery to USA (delivery time is upon your location,) For other country it may take 10 to 25 business days for transport. If need express like Fedex, DHL, UPS please contact.Thanks   Please pay instantly with your credit card through Paypal! Thanks    Happy bidding!