These requirements cover equipment connected to or used with plumbing in commercial or household locations. Examples of equipment covered by these requirements are irrigation equipment@ sprinkler controls@ water controls located in kitchens and bathrooms@ electric faucets@ and toilet flushing systems. All equipment is intended for installation and use in accordance with the National Electrical Code@ NFPA 70@ and is rated 600 volts or less. These requirements do not cover pumps@ dishwashers@ washing machines@ or other equipment connected to plumbing that is covered by individual requirements. These requirements do not cover refrigeration systems or controls that regulate water temperature@ or equipment for use in hazardous locations as defined in the National Electrical Code@ NFPA 70. A product that contains features@ characteristics@ components@ materials@ or systems new or different from those covered by the requirements in this Standard@ and that involves a risk of fire@ electric shock@ or injury to persons shall be evaluated using the appropriate additional component and end-product requirements to determine that the level of safety as originally anticipated by the intent of this Standard is maintained. A product whose features@ characteristics@ components@ materials@ or systems conflict with specific requirements or provisions of this Standard shall not be judged to comply with this Standard. Where appropriate@ revision of requirements shall be proposed and adopted in conformance with the methods employed for development@ revision@ and implementation of this Standard.
UL 1951 BULLETIN-2011 history
1970UL 1951-2020 UL Standard for Safety Electric Plumbing Accessories
2017UL 1951 BULLETIN-2017 UL Standard for Safety Electric Plumbing Accessories (COMMENTS DUE: August 14@ 2017)
2016UL 1951 BULLETIN-2016 UL Standard for Safety Electric Plumbing Accessories (COMMENTS DUE: February 13@ 2017)
2014UL 1951 BULLETIN-2014 UL Standard for Safety Electric Plumbing Accessories (COMMENTS DUE: March 10@ 2014)
2013UL 1951 BULLETIN-2013 UL Standard for Safety Electric Plumbing Accessories (COMMENTS DUE: December 02@ 2013)
2011UL 1951 BULLETIN-2011 UL Standard for Safety Electric Plumbing Accessories (COMMENTS DUE: May 30@ 2011)
2010UL 1951 BULLETIN-2010 SUMMARY OF TOPICS The following changes in requirements to the Standard for Electric Plumbing Accessories, UL 1951, are being proposed for preliminary review and comment only
2008UL 1951 BULLETIN-2008 UL Standard for Safety Electric Plumbing Accessories (COMMENTS DUE: September 15@ 2008)