An ejector can be provided for a surge protection module that is configured to be engaged with a base for operation. The ejector can include a lever that is configured to pivot relative to the base to eject the surge protection module from engagement with the base.

A device for securing a communications or automation device to a top hat rail, wherein the device includes a base body, which can be connected to the communications or automation device on a front side, where at least one fixed first securing element that includes a groove or an undercut that can be engaged with an offset end of a first limb of a top hat rail is provided on a rear side of the base body, at least one second securing element provided on the rear side of the base element, which can be moved in the direction of the first securing element, is pretensioned in relation to the first securing element via a spring mechanism and includes a groove or an undercut that can be engaged with an offset end of a second limb of the top hat rail.

A securing structure is provided, including a frame, a movable member, a fixed member, a first abutting member, a screwing member. The frame includes a passage. The movable member is slidably disposed in the passage, and includes a threaded portion and a guiding slot. The fixed member is affixed on the frame and extends through the guiding slot. The first abutting member has a first inclined surface and is pivotally connected to the movable member. The screwing member is detachably joined to the threaded portion.

An electronics module includes a housing having a mounting foot or component suitable for mounting on a support rail and for fastening the electronics module to the support rail which is mounted on a mounting base. At least one spring element is provided in the lower region of the housing facing the mounting base when mounted. The at least one spring element is configured to provide a damping effect when the housing vibrates relative to the mounting base.

To enable an intuitive and inexpensive releasable fastening of a housing to a fastening rail, a fastening apparatus is provided for the releasable fastening of the housing to the fastening. A single-part lever mechanism is used for latching and unlatching the housing to and from the fastening rail. The lever mechanism has an actuation means that moves the lever mechanism into a latching position or into an unlatching position, a first lever arm that actuates a first hook provided in the housing in a first direction, and a second lever arm that actuates a second hook provided in the housing in a second direction. The first and second directions are opposite one another and the first and second lever arms are connected to one another via the actuation means such that a support section is formed that has a parabolic form having two parallel limbs.

An electronics module having a latch assembly including first and second reciprocating latch portions adapted to engage respective first and second opposite edges of a mounting rail. Each of the latch portions includes a locking tab, the locking tabs movable away from each other from a latched position to an unlatched position, the first and second latch portions being coupled together for reciprocating motion, at least one of said latch portions including an actuator portion extending from the housing for manual actuation of the latch assembly between the latch and unlatched positions.

A securing structure is provided, including a frame, a movable member, a fixed member, a first abutting member, a screwing member. The frame includes a passage. The movable member is slidably disposed in the passage, and includes a threaded portion and a guiding slot. The fixed member is affixed on the frame and extends through the guiding slot. The first abutting member has a first inclined surface and is pivotally connected to the movable member. The screwing member is detachably joined to the threaded portion.

The invention relates to a clamping module for securing to a support rail, which has a housing, a bracing device and at least one retaining claw arranged thereon. The at least one retaining claw can be brought into a securing position on the support rail and clamped there by means of the bracing device, in order to detachably secure the clamping module to the support rail. According to the invention, the clamping module has a signal device, comprising at least one signal element arranged in the housing, which signal element can be moved along a predetermined movement path by placing the clamping module onto a support rail. Using the position of the signal element on the movement path, it can be identified from outside the housing whether the clamping module is correctly arranged on the support rail.

A device for securing a communications or automation device to a top hat rail, wherein the device includes a base body, which can be connected to the communications or automation device on a front side, where at least one fixed first securing element that includes a groove or an undercut that can be engaged with an offset end of a first limb of a top hat rail is provided on a rear side of the base body, at least one second securing element provided on the rear side of the base element, which can be moved in the direction of the first securing element, is pretensioned in relation to the first securing element via a spring mechanism and includes a groove or an undercut that can be engaged with an offset end of a second limb of the top hat rail.

The invention relates to a clamping module for securing to a support rail, which has a housing, a bracing device and at least one retaining claw arranged thereon. The at least one retaining claw can be brought into a securing position on the support rail and clamped there by means of the bracing device, in order to detachably secure the clamping module to the support rail. According to the invention, the clamping module has a signal device, comprising at least one signal element arranged in the housing, which signal element can be moved along a predetermined movement path by placing the clamping module onto a support rail. Using the position of the signal element on the movement path, it can be identified from outside the housing whether the clamping module is correctly arranged on the support rail.