Method of mounting an interlock module between two contactors and an interlock module

A method for mounting an interlock module between two contactors, wherein the interlock module is configured, in an assembled state, to ensure that in the case where one of the two contactors is switched on, the switching on of the other of the two contactors is blocked, the method is characterized in that it comprises at least the following steps:

• Step 1:
• Providing two contactors, including a first contactor having a first mounting surface and a first movable iron core assembly and a second contactor having a second mounting surface and a second movable iron core assembly, and placing the first contactor and the second contactor side by side with a gap therebetween, so that the first mounting surface faces the second mounting surface,
• Step 2:
• Providing the interlock module comprising a first slider, a second slider and a housing formed separately from the first slider and the second slider, an interlocking portion being mounted in the housing for interacting with the first slider and the second slider to generate an interlocking effect,
• Step 3:
• Connecting the first slider to the first movable iron core assembly of the first contactor through the first mounting surface,
• Step 4:
• Connecting the second slider to the second movable iron core assembly of the second contactor through the second mounting surface,
• Step 5:
• Assembling the housing to the first slider and the second slider,
• Step 6:
• Removably fixing the housing,
• wherein the order of step 3 and step 4 can be interchanged,
• at least one screw and nut assembly comprising a screw and a nut cooperating with each other is provided in the housing of the interlock module provided in step 1, a stopper being provided in the first mounting surface of the first contactor and/or the second mounting surface of the second contactor and being provided with a side stopper surface and a top stopper surface,
• wherein the above step 6 comprises a sub-step 6.1:
• rotating the screw along a locking direction by a certain angle to bring the nut to enter the stopper, so that the nut can be stopped by abutting against the side stopper surface, during which there is no relative rotation between the screw and the nut.