Switches: https://werkel.pro/catalog/vyklyuchateli/ 
Sockets: https://werkel.pro/catalog/mekhanizmy/ 
Frames: https://werkel.pro/catalog/seriya_favorit/chernyy_10/#catalog 
Thermostat: https://werkel.pro/catalog/termoregulyatory/sensornyy_termoregulyator_dlya_teplogo_pola_s_funktsiey_wi_fi_werkel_w1151208_chernyy.html 

Polys: 162,652
Verts: 169,857
FBX smoothed at 2 iterations of Turbosmooth

Other models: https://3dsky.org/users/lex_lavr