US 12,237,136 B2
Hazardous location compliant circuit protection devices having enhanced safety intelligence, systems and methods
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 Mar. 27, 2023, as Appl. No. 18/190,316.
Application 18/190,316 is a continuation of application No. 16/723,414, filed on Dec. 20, 2019, granted, now 11,615,925.
Claims priority of provisional application 62/784,989, filed on Dec. 26, 2018.
Prior Publication US 2023/0298830 A1, Sep. 21, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H01H 71/02 (2006.01); H01H 9/04 (2006.01); H01H 71/10 (2006.01); H01H 89/00 (2006.01)
CPC H01H 9/042 (2013.01) [H01H 71/025 (2013.01); H01H 71/10 (2013.01); H01H 89/00 (2013.01); H01H 2223/002 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A controller including a processor and a memory accessible by the processor, the memory storing instructions that when executed by the processor implement a method, comprising:
receiving a selected one of a plurality of different settings for operation of at least one solid state switching element to protect a connected electrical load;
determining whether the received selected one of the plurality of different settings exceeds a wiring limit for an explosive environment in which the solid state switching element is situated;
accepting a temperature input; and
outputting control signals to operate the at least one solid state switching element in response to the temperature input to maintain a surface temperature of a housing containing the at least one solid state switching element at or below a rated temperature for the explosive environment, thereby precluding the housing from being an ignition source in the explosive environment.