The utility model relates to a magnetic safety group suitable for being assembled in a safety valve of a gas appliance. The magnetic safety group comprises an electromagnet (2), a phase terminal (8), an earthing terminal and a sleeve (10), wherein the phase terminal (8) is electrically connected to the electromagnet (2) and is suitable for being connected to a phase terminal (31) of a thermocouple connector (30); the earthing terminal is electrically connected to the electromagnet (2) and is suitable for being connected to an earthing terminal (32) of the thermocouple connector (30); the sleeve (10) is electrically connected to the earthing terminal, comprises at least one bulge part (11) facing inside of the sleeve (10) and extending in the radial direction, the at least one bulge part (11) is suitable for guiding insertion of the thermocouple connector (30), so that the thermocouple connector (30) can be connected with a magnetic group (1), and the sleeve (10) is suitable for being electrically connected with the earthing terminal (32) of the thermocouple connector (30) through the at least one bulge part (11) and the outer surface (17) of the sleeve (10).
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