Not sure how large a motor your running, but this may be able to do what your looking for. I think it should pair as a generic zwave switch... http://www.nortekcontrol.com/product_detail.php?productId=1572
http://www.amazon.com/gp/aw/d/B00ER6MH22/ref=mp_s_a_1_1?qid=1458509127&sr=8-1&pi=AC_SX236_SY340_QL65&keywords=gocontrol+relay