US 12,437,950 B2
Plug-in summation current transformer module, rail-mounted device, and assembly method
Sebastian Schaich, Regensburg (DE); Tobias Keimel, Regensburg (DE); and Michael Koch, Freudenberg (DE)
Assigned to Siemens Aktiengesellschaft, Munich (DE)
Filed by Siemens Aktiengesellschaft, Munich (DE)
Filed on Jul. 28, 2023, as Appl. No. 18/361,229.
Claims priority of application No. 10 2022 207 779.2 (DE), filed on Jul. 28, 2022.
Prior Publication US 2024/0038474 A1, Feb. 1, 2024
Int. Cl. H01H 83/22 (2006.01); H01H 71/02 (2006.01); H01H 71/08 (2006.01); H01H 71/12 (2006.01)
CPC H01H 83/226 (2013.01) [H01H 71/0207 (2013.01); H01H 71/08 (2013.01); H01H 71/12 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A plug-in summation current transformer module for insertion into a module-overlapping installation space of a multi-pole rail-mounted device formed from a plurality of housing modules, the current transformer module comprising:
a tubular summation current transformer;
at least one first primary conductor and at least one second primary conductor, each being routed through said tubular summation current transformer and each having a first primary conductor end and a second primary conductor end;
a primary conductor holder for fixing said first and second primary conductor ends, said primary conductor holder being fastened to said summation current transformer and being configured to adopt a fixing position and a releasing position, said primary conductor holder being configured,
in the fixing position, to hold said first and second primary conductor ends in a respective assembling position during an insertion into the module-overlapping installation space; and
after insertion, by moving to the releasing position, to bring said first and second primary conductor ends into a respective joining position.