I am hooking up electric baseboard heaters that did not come with thermostats and I am trying do hook them up without blowing the breakers. I followed the directions and it still blows the breakers. What am I doing wrong?

There is not a lot of things to go on here like wire colors or a link to the thermostat manual or even the voltage.

Most 240 thermostats have a line and load connections. The line side goes to the breaker and the load side is the heater.

Need some help here.