Electrical squib connector for a safety restraint system of a motor vehicle that can be mated with a mating electrical connector in a first direction of a mating direction (300, 301), said electrical connector comprising: a main housing; a locking spring, provided in the main housing and relaxed in a delivery state of the connector; a connector position assurance member, movable so as to cause a tension of the spring passing the connector from the delivery state into a loaded state in which, upon mating of the connector with the mating connector, the tension of the spring opposes the mating as long as the connector and the mating connector are not correctly mated; and at least one main locking member (2217, 2218) provided on the main housing, in a delivery position in the delivery state of the connector, and deflectable during mating, the delivery position allowing locking of the connector with the mating connector when they are correctly mated, characterized in that the connector position assurance member comprises at least one secondary locking member (2237, 2238), in particular two secondary locking members (2237, 2238), having a head portion (2240, 2241) arranged, in the delivery state, behind said at least one main locking member (2217, 2218) so as to wedge and prevent deflection of said at least one main locking member (2217, 2218), and in that an end of said head portion (2240, 2241) of said at least one secondary locking member (2237, 2238) of the connector position assurance member further defines a bearing surface (2242, 2243) arranged for bearing, upon mating, against a predetermined surface (127, 128) defined by ribs (125, 126) of a coupling section of the mating connector, thereby causing the passage from the delivery state to the loaded state, such that, in the loaded state, said head portion (2240, 2241) is no longer housed behind said at least one main locking member (2217, 2218), whereby said at least one main locking member (2217, 2218) can be deflected. a main housing; a locking spring, provided in the main housing and relaxed in a delivery state of the connector; a connector position assurance member, movable so as to cause a tension of the spring passing the connector from the delivery state into a loaded state in which, upon mating of the connector with the mating connector, the tension of the spring opposes the mating as long as the connector and the mating connector are not correctly mated; and at least one main locking member (2217, 2218) provided on the main housing, in a delivery position in the delivery state of the connector, and deflectable during mating, the delivery position allowing locking of the connector with the mating connector when they are correctly mated, characterized in that the connector position assurance member comprises at least one secondary locking member (2237, 2238), in particular two secondary locking members (2237, 2238), having a head portion (2240, 2241) arranged, in the delivery state, behind said at least one main locking member (2217, 2218) so as to wedge and prevent deflection of said at least one main locking member (2217, 2218), and in that an end of said head portion (2240, 2241) of said at least one secondary locking member (2237, 2238) of the connector position assurance member further defines a bearing surface (2242, 2243) arranged for bearing, upon mating, against a predetermined surface (127, 128) defined by ribs (125, 126) of a coupling section of the mating connector, thereby causing the passage from the delivery state to the loaded state, such that, in the loaded state, said head portion (2240, 2241) is no longer housed behind said at least one main locking member (2217, 2218), whereby said at least one main locking member (2217, 2218) can be deflected.