Deals with the safety of electric stationary circulation pumps intended for use in heating systems or in service water systems, having a rated power input not exceeding 300 W, their rated voltage being not more than 250 V for single-phase and 480 V for other appliances. Hydraulic and electric parts of the pump may be in the same enclosure, so that the water serves as a coolant, or they maybe seperate. This standard does not apply to pumps for circulating liquids other than water; pumps, other than circulation pumps (IEC 60335-2-41); circulation pumps intended exclusively for industrial purposes; circulation pumps intended for locations where special conditions prevail, such as the presence of a corrosive or explosive atmosphere (dust, vapor, or gas).
IEC 60335-2-51 Ed. 3.0 b:2002 History
IEC 60335-2-51 Ed. 5.0 b:2023
$47.00 $95.00
IEC 60335-2-51 Ed. 4.0 b:2019
$47.00 $95.00
IEC 60335-2-51 Ed. 3.2 b:2012
$47.00 $94.00
IEC 60335-2-51 Ed. 3.1 b:2008
$38.00 $76.00
IEC 60335-2-51 Ed. 3.0 b:2002
$23.00 $47.00
More Standards PDF
IEC 61992-3 Ed. 1.0 b:2001
$37.00 $74.00
IEC 61992-1 Ed. 1.0 b:2001
$62.00 $124.00
IEC 62221 Ed. 1.0 b:2001
$28.00 $56.00
IEC 61058-1 Amd.1 Ed. 3.0 b:2001
$18.00 $36.00