Designed for the automotive industry and rated for low voltages (12-24VDC) up to 10 amps. Generally regarded as suitable for wire guages up to 14AWG, however, we find it a struggle to close the connector with wires this thick and recommend nothing thicker than 16AWG.
Simply wrap around the existing wire and new wire and squeeze. Connector cuts through insulation and makes contact without damaging the conductor. Fully insulated once on.