100% brand new and good quality. Contact barrel wire size [AWG]: 6/10/12AWG (1 3.3 mm² - 5.3/3.3 mm²). Medium contact resistance (micro ohm): 200. Insulation resistant to test voltage (AC/DC volts): 2200 V. Contact retention force (lbf): 50lbf No load (contact/disconnection cycles): at 10,000. Under load (hot plug 250 cycles @ 120V). Average insertion force (pounds): 15lbf.Operating temperature ° C: -20°to 105°. Flammability class of the housing material: UL 94-V0. Good material: the product is manufactured at from good materials, the Continuity is perfect, resistance to bad environment. self-erasing makes the surface of the push needle clean, low contact resistance is reliable. The connector can be used in a powerful shock environment and with the function of fast action in large electric current. Stainless steel shrapnel can ensure constant contact stress and remedies intermittent overload in case of frequent splicing and interruption. Easy to use: Regardless of the plug or socket, inserting in the same color is a pair, easy and quick to splicing and interrupt.