Lockable 20A/250V-400V AC device coupler Linear, uncharged and pre-grounded three contacts Power input (blue) and power output (white) have different lock keys to avoid short circuits Fast and convenient rotation locking system Ergonomic design<br><br>Quick lock Pure copper pin for connection, silver plated Electrical parameters: Dielectric strength (external): 4 / 2.8 Kvac Insulation resistance: more than 0.1G ohm Electronic contact: 4P + E Rated current: 20A Rated voltage: 250V-400V Mechanical parameters: Cable diameter: 5-12 (mm) Service life: more than 1000 (based on the number of connections) Product advantages: Its locking system is better than the standard non-locking MAIN connector Colour: black + yellow Material: copper + ABS<br><br>Package Contents: 5 x male plug 5 x female jack<br><br>Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.