W2, W5 and W10 - 500 - 1,850 lb capacity and intended for intermittent hand use only.
W100-3, W100-6 and W200-5 - 1,500 - 3,000 lb capacity and intended for heavy duty hand use only.
W100-3P, W100-6P and W200-5P - 750 - 1,500 lb capacity and intended for heavy duty hand use or are convertible for intermittent power use.