| 摘要 |
PROBLEM TO BE SOLVED: To provide a relay of fire alarm system capable of easily mounting the relay and a printed circuit board and reducing time and labor required in the confirmation of a setting condition after the relay is installed, setting change work, the confirmation of a wire connection condition, and wire reconnection work. SOLUTION: Fitting parts 53a, 53b formed in both end parts of one side of the printed circuit board 5 are inserted into fitted parts 33a, 33b of a main body 3, and the other opposing sides are pushed into a bottom face part side of the main body 3 to nip and hold a nipped and held part 59 at one end in a circuit board nipping and holding part 35 and tighten and fix it by a mounting screw in order to mount and fix the main body 3 and the printed circuit board 5. Moreover, the metal fitting is mounted in the main body 3 so as to for a collar part extending outward from its opening face and is opened without covering the opening face of the main body 3. |
