Abstract: An object of the present invention is to provide an electrical junction box having a new structure that can restrain noises from leaking through a support member and can advantageously secure a fixing strength onto the support member in the electrical junction box fixed on a support member by inserting an arm section projecting from a box main body into an attaching aperture in the support member. An arm section is loosely inserted into a support member. The arm section is provided on its extending distal end with an engaging portion that is pushed through an attaching aperture in the support member into an interior of the support member to be engaged with a rear surface of the support member. The arm section is integrally provided with a first wall portion opposed through the support member to the engaging portion. The first wall portion covers the attaching aperture.

Abstract: An object of the present invention is to provide an electrical junction box having a new structure that can restrain noises from leaking through a support member and can advantageously secure a fixing strength onto the support member in the electrical junction box fixed on a support member by inserting an arm section projecting from a box main body into an attaching aperture in the support member. An arm section is loosely inserted into a support member. The arm section is provided on its extending distal end with an engaging portion that is pushed through an attaching aperture in the support member into an interior of the support member to be engaged with a rear surface of the support member. The arm section is integrally provided with a first wall portion opposed through the support member to the engaging portion. The first wall portion covers the attaching aperture.