Contactor with modular connection of the coil

1. A contactor with modular connection of the coil, comprising:

an insulating body delimited by a front face and a rear face comprising means of attachment to a support,

an operating coil housed in the insulating body, and

means of modular connection of the coil to an external circuit so that the coil can be powered,

wherein

the coil connection means comprise:

a coil connection arrangement, internal to the body, comprising at least two pairs of contact pieces positioned near at least two faces of the insulating body, these two faces being chosen from the front face and two opposed side faces running transversely between the front face and the rear face, each contact piece facing an opening in the body, and

at least one removable connection module comprising a first pair of connection terminals and a second pair of contacts which is connected to the first pair of connection terminals and which are intended to collaborate with at least one of the pair of contact pieces of the internal coil connection arrangement.

2. The contactor as claimed in claim 1 , in which at least one pair of contact pieces of the internal coil connection arrangement is positioned on one face of the insulating body in such a way that the two contact pieces this pair lie respectively close to two opposed edges of the face.

3. The contactor as claimed in claim 1 , comprising at least two pairs of contact pieces of the internal coil connection arrangement positioned respectively facing the front face and facing a side face running transversely between the front face and the rear face.

4. The contactor as claimed in claim 1 , in which a removable connection module intended to be positioned at the front face is different in structure than a removable connection module intended to be positioned at a side face.

5. The contactor as claimed in claim 1 , in which the contact pieces intended to collaborate with one another and belonging to the first and second pairs respectively have an elastic portion, particularly one consisting of an elastic clip or an elastic loop, and a rigid portion, particularly one consisting of a rigid tab.

6. The contactor as claimed in claim 1 , in which the removable connection module comprises means of attachment to the insulating casing.

7. The contactor as claimed in claim 1 , in which the coil connection arrangement comprises a printed circuit on an insulating substrate for electrical connection between the contact pieces and the coil.

8. The contactor as claimed in claim 7 , in which at least one contact piece is produced in the form of a surface mount component.

9. The contactor as claimed in claim 1 , in which the coil connection arrangement comprises at least one metal connecting strip for connection to the ends of the winding of the coil.

10. The contactor as claimed in claim 1 , in which the removable connection module also comprises additional functions of the timer or interface unit type.

11. The contactor as claimed in claim 1 , in which the removable connection module intended to be positioned at the front face also comprises auxiliary contacts associated with the movement of a main slider of the contactor.

12. The contactor as claimed in claim 3 , in which the first pair of contact pieces positioned facing the front face of the body is positioned along a diagonal of this face.