Originally Posted by isis
That is classic strain relief there, but your comment about the weather pack relieving strain from the crimp is correct. Not much more is needed with wires that are 16-18 Gauge.
I'd probably agree with you for this application since that connector, once installed, tends to stay put. We take strain reliefs a bit more seriously at work since our connectors are constantly tugged on and go through half a million bend cycles...
There's quite a lot of engineering hidden under that yellow strain relief: