US 12,136,531 B2
Hazardous location compliant circuit protection devices, systems and methods with safety lockout/tagout components
Joseph Michael Manahan, Manlius, NY (US); Adam Ledgerwood, Syracuse, NY (US); Andrew Butler, Baldwinsville, NY (US); and Graig DeCarr, Cicero, NY (US)
Assigned to EATON INTELLIGENT POWER LIMITED, Dublin (IE)
Filed by Eaton Intelligent Power Limited, Dublin (IE)
Filed on Sep. 12, 2022, as Appl. No. 17/942,961.
Application 17/942,961 is a continuation of application No. 16/723,442, filed on Dec. 20, 2019, granted, now 11,456,142.
Claims priority of provisional application 62/785,007, filed on Dec. 26, 2018.
Prior Publication US 2023/0017836 A1, Jan. 19, 2023
Int. Cl. H01H 9/16 (2006.01); H01H 85/34 (2006.01)
CPC H01H 85/34 (2013.01) [H01H 9/168 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method implemented by a switch device for an explosive environment, wherein the switch device does not have a separately provided explosion-proof enclosure, the method comprising;
determining a position of an on/off input selector, the on/off input selector being located within a switch device;
in response to determining the position of the on/off input selector is in an off position, operating one or more solid state switches to suspend current to one or more load-side terminals;
determining whether the one or more load-side terminals of the switch device are electrically isolated;
in response to determining the one or more load-side terminals of the switch device are electrically isolated, generating a prompt via a graphical user interface;
receiving, via the graphical user interface, one or more inputs, the one or more inputs including at least a request for safety lockout instructions;
detecting a lock installation; and
disabling the on/off input selector and preventing a further change in state of the on/off input selector.