210Pcs Lock Wire Connectors Quick Splice Electrical Cable Snap Crimp Terminal BlocksBlue Item Type: Lock Wire ConnectorsMaterial: Nylon, brass tin plated Purpose: Used for connecting parts of electrical wires, electrical controls, power supplies, home appliances, lighting, machinery, etc. Maximum Working Temperature: 105℃ Specifications Parameter Colour Red Wiring range  0.5-1.0mm²/22-18AWG Current upper limit  10A Maximum withstand voltage  600V Size (Lx W) approx. 19.3 x 32.0mm / 0.8 x 1.3in Specifications Parameter Colour Blue Wiring range 0.75-2.5mm²/18-14AWG Current upper limit 15A Maximum withstand voltage  600V Size (L x W) approx. 19.3 x 32.0mm / 0.8 x 1.3in Specifications Parameter Colour Yellow Wiring range 4-6mm²/12-10AWG Current upper limit 24A Maximum withstand voltage  600V Size (L x W) approx. 19.7 x 32.0mm / 0.8 x 1.3in