Trumotion miniature low inertia solar motor 2v 1540 rpm trumotion wrf 300ca 08430 18 5 the trumotion miniature low inertia solar motor 2v 1540 rpm is a low inertia precision solar motor with a starting current making it ideal for low power applications 2v nominal trumotion wrf 300ca 08430 18 5 miniature low inertia solar motor 2v 1540 rpm