Pairing type: male plug+female socket; Connection mode: One click button plug/unplug power; Locking : automatic insertion, self-locking device; Protection level: IP68 (2M/2H) (paired); Assembly : solder. Cable Standard: Cable Specification: 2.5-4.0mm ²/ 14-12AWG; Cable diameter range: 8.0-12.0mm; Contact diameter x number: φ 2.7x2; Durability: equal 1900 mating/without cycles. Electrical characteristics: Rated current: 20a; Operating voltage (AC. V. RMS): 500V; Puncture test: 2500V; Contact resistance: Less than 1M ohm; Insulation resistance: 1000M ohm; Do not plug in when powered on. Material properties: Shell material: High performance PBT plastic material; Temperature range: -40℃ to 80 ℃; High temperature aging: 85 ℃/168 h; Temperature rise: 20A 30K ↓; 25a 40k ↓; 30a 50k ↓; Flame retardant level: UL94 V-0; Sealing: High quality silicon ring; Contact core: copper alloy (gold-plated) Widely used: in various challenging environments. Suitable for mechanical, server, photovoltaic, energy storage, power grid, automotive, marine, communication, detection, measurement, industrial control, audio-visual equipment, stage equipment, etc. Type:4 Pin Colour:Black Material:Plastic Package Contents: 1 * connectors Only the above package content, other products are not included. Note: Light reflection 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.