3M H-29-BIN Twist-On Wire Connector Gray 10 AWG 300 V 1000 Pack

3M H-29-BIN Gray Wire Connector 1000-Pack

This 3M twist-on connector joins solid or stranded copper conductors in residential and light-commercial wiring. The gray vinyl-insulated body accepts single wires from 22 AWG up to 10 AWG and multi-wire combinations from three 22 AWG through one 16 AWG with one 18 AWG. It is rated for 300 volts and a maximum operating temperature of 221 degrees Fahrenheit. The bulk pack contains one thousand pieces for high-volume installation work.

10 AWG Maximum Single-Wire Capacity

The critical specification is the 10 AWG upper limit for a single conductor, which determines whether the connector fits the circuit you are building. Conductors larger than 10 AWG will not seat correctly and can create a loose connection, while wires smaller than 22 AWG fall below the minimum range. The connector also handles mixed combinations such as one 16 AWG paired with one 18 AWG, giving flexibility for lighting and receptacle circuits.

CSA and UL Listings Ensure Code Compliance

The connector carries both CSA certification and UL listing, satisfying the electrical-code requirements that inspectors verify on rough-in and final inspections. The vinyl insulation provides a protective skirt that covers stripped conductor ends, reducing the chance of accidental contact after installation. No additional torque tools or sealing compounds are supplied, so installers rely on the standard hand-twist method to achieve a secure mechanical and electrical joint.