Abstract: An apparatus (1) for monitoring the state of a protective device (2) of a machine (4) in particular is a safety switch for monitoring the closed state of a protective door or the like. The apparatus (1) has a switch housing (22) with a switch head (24) and an actuator (8). In the closed state of the protective device (2), the actuator interacts with the switch head (24) and, as a result, the closed state of the protective device (2) can be signaled. The apparatus (1) has a tumbler device (20) with a tumbler element (30) mounted movably in the apparatus (1) and by which the closed state of the protective device (2) can be locked releasably. The tumbler device (20) has at least one permanent magnet (34).

Abstract: An apparatus (1) monitors a protective device (2) of a machine (4). The apparatus (1) has a switch housing (22) with a switch head (24) and an actuator (8). In the closed state of the protective device (2), the actuator interacts with the switch head (24) with that closed state being signaled. The apparatus (1) has a tumbler device (20) with a tumbler element (30) mounted movably in the apparatus (1) to lock releasably the closed state. The tumbler device (20) has a permanent magnet (34). The magnetic force fixes the tumbler element (30) in a first position when the power supply to the apparatus (1) is switched off to lock the closed state of the protective device (2), in a second position with the tumbler device (20) not locking the closed state.

Abstract: An apparatus (1) for monitoring the state of a protective device (2) of a machine (4) in particular is a safety switch for monitoring the closed state of a protective door or the like. The apparatus (1) has a switch housing (22) with a switch head (24) and an actuator (8). In the closed state of the protective device (2), the actuator interacts with the switch head (24) and, as a result, the closed state of the protective device (2) can be signaled. The apparatus (1) has a tumbler device (20) with a tumbler element (30) mounted movably in the apparatus (1) and by which the closed state of the protective device (2) can be locked releasably. The tumbler device (20) has at least one permanent magnet (34).

Abstract: A device (1) maintains a locked and closed state of a space separating device (2) in a releasable manner, in particular a protective device of a machine (4). The device has a first part (6) with an opening and a second part (8). The parts are movable relative to one another. The opening is at least partially closable. The device (1) includes a latch (18) for locking the closed state of the space-separating device (2), a holding element (30) for keeping the latch (18) in the latched position, and a release element (36) for releasing the catch of the latch (18). The catch of the latch (18) may be lifted by a rotational movement of the release element (36) relative to the latch (18).

Abstract: The invention relates to a device (1) for monitoring the state of a safety device (2) of a machine (4), in particular a safety switch for monitoring the closed state of a safety door or the like, the device (1) having a switch housing (22, 24) and an actuator (8), which, when the safety device (2) is closed, cooperates with a switch actuating element (14) movably mounted in the switch housing (22, 24) and the closed state of the safety device (2) can be signaled thereby, and the device (1) having a locking device by which the closed state of the safety device (2) can be releasably locked, characterized in that by applying excessive force to the actuator (8) against the action of the locking device, the switch actuating element (14) can be brought into a fail-safe position, from which the switch actuating element (14) can no longer be transferred by the actuator (8) into a position in which the device (1) signals the locked state of the safety device (2), and the device (1) signals the unlocked state of the sa

Abstract: The invention relates to a device (1) for maintaining a locked and closed state of a space-separating device (2) in a releasable manner, in particular a protective device of a machine (4) having a first part (6) with an opening and a second part (8), said parts being movable relative to one another, the opening therefore being at least partially closable, wherein the device (1) comprises a latch (18) by means of which the closed state of the space-separating device (2) may be locked, a holding element (30) by means of which the latch (18) may be kept in the latched position, and a release element (36) by means of which the catch of the latch (18) may be released, and wherein the catch of the latch (18) may be lifted by a rotational movement of the release element (36) relative to the latch (18).