UL 1647
1 Scope
1.1 These requirements cover motor-operated massage and exercise machines, such as vibrators, exercise bicycles, vibrating and massaging chairs, and the like, are to be employed in accordance with the National Electrical Code, NFPA 70.
1.2 These requirements also cover massage and exercise machines such as vibrators in which motion of an operating part is produced by electrical means.
1.3 These requirements also cover portable motor-operated massage type footbaths that may employ a heating function. The massage function is produced mechanically by a motor or vibrating coil, or by a motor that pumps air (bubble massage) or circulates water (hydro-massage).
1.4 These requirements do not cover appliances rated more than 250 V.
1.5 These requirements do not cover footbaths without a motor-operated massage type function.
1.6 These requirements also cover motorized and non-motorized inversion tables.