| 摘要 |
The arrangement consists of a casing (1) with a printed circuit board (2), an over-voltage conductor (3) with a deflector (9), and a solder form part (5) which is melted in a triggered contact condition through overstepping of a certain temperature of the over-voltage conductor. A spring arm with two contact wings (11, 11') is connected with a grounding metal sheet (8) and with the solder form part. The contact wings engage directly with conductor paths of a telecommunications line in the triggered contact condition, and short-circuit them with the ground. The spring arm is formed through a bent switch contact element (4), whereby the contact wings are arranged symmetrically at its one end, and comprise respectively a bent claw (12, 12), whereby the solder form part is arranged between both contact wings. |
