XT-series connectors (XT30/XT60/XT90), born in the RC hobby world, are now widely used in robotics, storage and power tools thanks to low contact resistance and reverse-polarity protection. Choosing the wrong size means melted housings.
Key specs at a glance
- XT30Up to 30A / 16-20AWG / robot joints, small power modules
- XT60Up to 60A / 12-14AWG / AGV drives, mid-size storage PACKs
- XT90Up to 90A / 10-12AWG / high-current drives
1. Size by continuous current, not peak
Ratings are continuous limits. Keep 30% margin on steady current; short peaks of 2x are tolerable briefly.
2. Match wire gauge to terminals
XT30 terminals suit 16-20AWG, XT60 suits 12-14AWG. Mismatched gauges cause bad crimps. Our XT30 joint harnesses pair 18AWG power with 24AWG signal, each crimped to match.
3. Insist on gold-plated terminals, flame-retardant shells
Genuine XT terminals are gold-plated copper with milliohm contact resistance; demand material and plating reports, and flame-retardant PA housings (UL94 V-0 preferred).
4. Quick application guide
Robot joints → XT30; AGV/mower main drives → XT60; large PACK outputs → XT90 or metal connectors; use booted versions at service ports.
Final words
We deliver XT30/XT60 terminated custom harnesses (straight and angled). Send drawings: +86 184 0755 1752 / eric@muyenda.com.