Electric switchboard terminal block with multiple label-holder seats

1. An electric switchboard terminal block having a body ( 310 ) extending in a lengthwise longitudinal direction (X-X), widthwise transverse direction (Y-Y) and heightwise vertical direction (Z-Z), and comprising a front face ( 310 a ) and side flanks ( 310 b ) situated opposite each other in the longitudinal direction (X-X), each flank having a first seat ( 320 ) for housing a label ( 30 ), and a recess ( 330 ) arranged in a central position in the longitudinal direction (X-X), open in the vertical direction (Z-Z) on the front face ( 310 a ) of the terminal block and open, on the opposite side, towards an inside of the terminal block, wherein said recess ( 330 ) has at least one further seat ( 331 ; 333 ) for housing at least one additional label ( 30 ), and

wherein said recess ( 330 ) has a substantially trapezium-like vertical cross-section with a larger base open towards the front face ( 310 a ) and a smaller base open towards the inside of the terminal block; the recess also having opposite inclined faces ( 330 a , 330 b ) slanting from the outside toward the inside and from the flanks ( 310 b ) towards a central vertical axis (Z-Z).

2. The terminal block according to claim 1 , wherein said at least one further seat ( 331 ; 333 ) comprises a seat oriented in a longitudinal-transverse plane (X-Y) defined by a pair of incisions ( 333 ), each extending in the longitudinal direction (X-X) in a respective inclined face ( 330 a , 330 b ) of the central recess ( 330 ), for receiving the opposite edges of an additional label ( 30 ) oriented in the longitudinal-transverse plane (X-Y).

3. The terminal block according to claim 2 , wherein each incision ( 333 ) is formed at an end close to the front face ( 310 a ) of the respective inclined face ( 330 a , 330 b ) of the central recess ( 330 ).

4. The terminal block according to claim 1 , wherein said at least one further seat comprises a first seat and a second seat ( 331 ) each formed in a respective inclined face ( 330 a , 330 b ) of the central recess ( 330 ).

5. The terminal block according to claim 1 , wherein said first seat ( 320 ) and/or said at least one further seat ( 331 ) have a top edge ( 320 a ) and bottom edge ( 320 b ) formed in the manner of a respective tooth ( 321 , 322 ), each tooth forming a corresponding undercut ( 323 ) towards the inside of the receiving slot.

6. The terminal block according to claim 1 , wherein one or more of the first seat and/or at least one further seat is/are open in the transverse direction (Y-Y) for insertion of the label.

7. The terminal block according to claim 5 , wherein each tooth ( 321 , 322 ) of a seat extends over the width in the transverse direction (Y-Y) of the seat.

8. The terminal block according to claim 5 , wherein said teeth ( 321 , 322 ) of the seats are situated opposite each other and have a rounded free edge.

9. The terminal block according to claim 2 , wherein the central recess ( 330 ) comprises a bottom zone in the vertical direction (Z-Z) able to contain one or more connecting jumpers ( 500 ), the longitudinal incisions ( 333 ) of the at least one further seat oriented in a longitudinal-transverse plane (X-Y) being arranged in the vertical direction between the bottom zone and the front face such that, during use, the at least one further seat oriented in the longitudinal-transverse plane (X-Y) is situated above the already mounted jumpers ( 500 ).

10. The terminal block according to claim 1 , wherein the front face ( 310 a ) of the terminal block has, formed in it, a pair of holes ( 340 ) for insertion of a base lug ( 410 ) of an auxiliary ( 330 ) label-holder ( 30 ) identification element ( 400 ).

11. The terminal block according to claim 10 , wherein each hole ( 340 ) for receiving the base lug of an auxiliary label-holder element is arranged between a respective first opening ( 313 ) extending in the vertical direction (Z-Z) for the introduction of a tool or special button for operating wire-gripping means, and the central recess ( 330 ).

12. An electric switchboard terminal block having a body ( 310 ) extending in a lengthwise longitudinal direction (X-X), widthwise transverse direction (Y-Y) and heightwise vertical direction (Z-Z), and comprising a front face ( 310 a ) and side flanks ( 310 b ) situated opposite each other in the longitudinal direction (X-X), each flank having a first seat ( 320 ) for housing a label ( 30 ), and a recess ( 330 ) arranged in a central position in the longitudinal direction (X-X), open in the vertical direction (Z-Z) on the front face ( 310 a ) of the terminal block and open, on the opposite side, towards an inside of the terminal block, wherein said recess ( 330 ) has at least one further seat ( 331 ; 333 ) for housing at least one additional label ( 30 ); and

wherein said first seats ( 320 ) and/or said at least one further seat ( 331 ) have a top edge ( 320 a ) and a bottom edge ( 320 b ) formed in the manner of a respective tooth ( 321 , 322 ), each tooth forming a corresponding undercut ( 323 ) towards the inside of the receiving slot.

13. The terminal block according to claim 12 , wherein said at least one further seat ( 331 ; 333 ) comprises a seat oriented in a longitudinal-transverse plane (X-Y) defined by a pair of incisions ( 333 ), each extending in the longitudinal direction (X-X) in a respective inclined face ( 330 a , 330 b ) of the central recess ( 330 ), for receiving the opposite edges of an additional label ( 30 ) oriented in the longitudinal-transverse plane (X-Y); and

wherein said recess ( 330 ) has a substantially trapezium-like vertical cross-section with a larger base open towards the front face ( 310 a ) and a smaller base open towards the inside of the terminal block; the recess also having opposite inclined faces ( 330 a , 330 b ) slanting from the outside toward the inside and from the flanks ( 310 b ) towards a central vertical axis (Z-Z).

14. The terminal block according to claim 13 , wherein each incision ( 333 ) is formed at an end close to the front face ( 310 a ) of the respective inclined face ( 330 a , 330 b ) of the central recess ( 330 ).

15. The terminal block according to claim 12 , wherein said at least one further seat comprises a first seat and a second seat ( 331 ) each formed in a respective inclined face ( 330 a , 330 b ) of the central recess ( 330 ).

16. The terminal block according to claim 12 , wherein one or more of the first seats and/or at least one further seat is/are open in the transverse direction (Y-Y) for insertion of the label.

17. The terminal block according to claim 12 , wherein each tooth ( 321 , 322 ) of a seat extends over the width in the transverse direction (Y-Y) of the seat.

18. The terminal block according to claim 12 , wherein said teeth ( 321 , 322 ) of the seats are situated opposite each other and have a rounded free edge.

19. The terminal block according to claim 13 , wherein the central recess ( 330 ) comprises a bottom zone in the vertical direction (Z-Z) able to contain one or more connecting jumpers ( 500 ), the longitudinal incisions ( 333 ) of the further seat oriented in a longitudinal-transverse plane (X-Y) being arranged in the vertical direction between the bottom zone and the front face such that, during use, the further seat oriented in the longitudinal-transverse plane (X-Y) is situated above the already mounted jumpers ( 500 ).

20. The terminal block according to claim 12 , wherein the front face ( 310 a ) of the terminal block has, formed in it, a pair of holes ( 340 ) for insertion of a base lug ( 410 ) of an auxiliary ( 330 ) label-holder ( 30 ) identification element ( 400 ).

21. The terminal block according to claim 20 , wherein each hole ( 340 ) for receiving the base lug of an auxiliary label-holder element is arranged between a respective first opening ( 313 ) extending in the vertical direction (Z-Z) for the introduction of a tool or special button for operating wire-gripping means, and the central recess ( 330 ).