An apparatus for coupling with a DIN mounting rail, the apparatus comprising: a housing carrier having a recessed portion therein, the recessed portion of the housing carrier configured to receive one or more components therein; the housing carrier including a coupling assembly; the coupling assembly including one or more operator links (128, 129, 130), the one or more operator links rotatable relative to the housing carrier about a pivot connected to the housing carrier by at least a pivot link, the coupling assembly including at least one DIN rail catch; the at least one pivot link coupled with the operator link near the pivot; the one or more operator links having a first position in which the at least one DIN rail catch is in a first coupled position, the operator links having a second position in which the at least one DIN rail catch is in a second uncoupled position; the at least one pivot link configured and sized to interact with at least a portion of the housing carrier when the one or more operator links are moved from the first position to the second position, wherein rotating the operator link (128,129,130) includes using a cantilever action of the pivot link relative to the housing carrier; and the one or more operator links operable to move the at least one DIN rail catch from the first coupled position to the second uncoupled position when the operator link is rotated about the pivot, the apparatus further comprising a stabilizer link, the stabilizer link configured and sized to support at least a portion of the housing carrier when the catch is moved from the first coupled position to the second uncoupled position, the catch disposed at a first portion of the stabilizer link, wherein a bottom link connects the operator link to the stabilizer link, and the bottom link transfers linear motion from an end of the operator link to the stabilizer link, allowing for engagement and disengagement with the DIN rail. a housing carrier having a recessed portion therein, the recessed portion of the housing carrier configured to receive one or more components therein; the housing carrier including a coupling assembly; the coupling assembly including one or more operator links (128, 129, 130), the one or more operator links rotatable relative to the housing carrier about a pivot connected to the housing carrier by at least a pivot link, the coupling assembly including at least one DIN rail catch; the at least one pivot link coupled with the operator link near the pivot; the one or more operator links having a first position in which the at least one DIN rail catch is in a first coupled position, the operator links having a second position in which the at least one DIN rail catch is in a second uncoupled position; the at least one pivot link configured and sized to interact with at least a portion of the housing carrier when the one or more operator links are moved from the first position to the second position, wherein rotating the operator link (128,129,130) includes using a cantilever action of the pivot link relative to the housing carrier; and the one or more operator links operable to move the at least one DIN rail catch from the first coupled position to the second uncoupled position when the operator link is rotated about the pivot, the apparatus further comprising a stabilizer link, the stabilizer link configured and sized to support at least a portion of the housing carrier when the catch is moved from the first coupled position to the second uncoupled position, the catch disposed at a first portion of the stabilizer link, wherein a bottom link connects the operator link to the stabilizer link, and the bottom link transfers linear motion from an end of the operator link to the stabilizer link, allowing for engagement and disengagement with the DIN rail.