I'm looking for compatible breakers for my old ITE Blueline Loadcenter main panel. I believe ITE was bought by Siemens. Would the Siemens 100A 2 Pole 120/240V Type Q Breaker (https://www.homedepot.ca/product/siemens-100a-2-pole-120-240v-type-q-breaker/1000436969) be compatible for supplying 100A sub-panel?
Update: I noticed one newer Siemens breaker in the panel! It's labelled type BL. Can I assume all type BL breakers will be compatible with my ITE Blueline Loadcenter panel?
Update: Photos added.