IP Library › Granted Patent US 12,555,931
Granted Patent B2
US 12,555,931 · App. 18/511,839 · Granted Feb 17, 2026

Multi-pole electrical wiring devices with wire termination assemblies

Inventors: Ryan Gene Papageorge (Shelton, CT); Thomas L. Scanzillo (Monroe, CT); Denny Lo (Bethlehem, CT); Scott Wurms (Shelton, CT); Roy J. Itzler (Orange, CT)
Assignee: Hubbell Incorporated
H01R4/48365H01R4/26H01R4/48185H01R4/4821H01R4/48455H01R9/2416H01R13/514H01R4/489
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Quick Facts
Patent No.
US 12,555,931
App. No.
18/511,839
Granted
Feb 17, 2026
Kind
B2
Abstract

Multi-pole or multi-phase electrical wiring devices that incorporate clamp-type wire termination assemblies are described. The electrical wiring devices include multi-pole motor switches. The electrical wiring devices include a plurality of wire termination assemblies. Each wire termination assembly includes a wire terminal and an activating member.

Claims (77)

1 . A multi-pole electrical wiring device comprising:

a main housing having an interior that is at least partially hollow; and

at least one wire attachment assembly attachable to the main housing, the at least one wire attachment assembly includes:

an assembly housing that is at least partially hollow, the assembly housing having at least one wire receiving opening providing access from an exterior of the assembly housing to the hollow portion of the assembly housing, and at least one activating member opening providing access from an exterior of the assembly housing to the hollow portion of the assembly housing; and

at least one wire termination assembly positioned at least partially in the hollow portion of the assembly housing and at least partially in the hollow portion of the interior of the main housing when the at least one wire attachment assembly is attached to the main housing, the at least one wire termination assembly includes:

a wire terminal including a clamp brace connected to a clamping member, the clamping member being movable between a closed position where a wire can be clamped between the clamping member and the clamp brace, and an open position where the wire can be inserted through the at least one wire receiving opening in the assembly housing and between the clamping member and the clamp brace; and

an activating member extending at least partially through the at least one activating member opening in the assembly housing, the activating member being interactive with the clamping member such that movement of the activating member in a first direction causes the activating member to apply a mechanical load to the clamping member causing the clamping member to move from the closed position to the open position, and movement of the activating member in a second direction removes the mechanical load from the clamping member so that the clamping member moves from the open position to the closed position.

2 . The electrical wiring device according to claim 1 , wherein the clamping member includes a wire press member such that the wire can be clamped between the wire press member and the clamp brace.

3 . The electrical wiring device according to claim 1 , wherein the clamping member comprises a biasing member.

4 . The electrical wiring device according to claim 1 , wherein the activating member remains in the first position or the second position until manually moved.

5 . The electrical wiring device according to claim 1 , wherein the movement of the activating member in the second direction is opposite the movement of the activating member in the first direction.

6 . The electrical wiring device according to claim 1 , wherein the movement of the activating member in the first direction and the second direction is parallel to the clamp brace.

7 . The electrical wiring device according to claim 1 , wherein the movement of the activating member in the first direction and the second direction is one of linear motion, rotational motion, torque motion, pivotable motion and twist motion.

8 . The electrical wiring device according to claim 1 , wherein the movement of the activating member in the first direction and the second direction is linear motion.

9 . The electrical wiring device according to claim 1 , wherein movement of the activating member in the first and second directions is relative to the clamping member.

10 . The electrical wiring device according to claim 1 , wherein movement of the activating member in the first direction is outward relative to the assembly housing and wherein movement of the activating member in the second direction is inward relative to the assembly housing.

11 . The electrical wiring device according to claim 1 , wherein when in the closed position the clamping member can clamp the wire with a force that is substantially perpendicular to a longitudinal axis of the wire.

12 . A multi-pole electrical wiring device comprising:

a main housing having an interior that is at least partially hollow; and

a plurality of wire attachment assemblies attachable to the main housing, each of the plurality of wire attachment assemblies includes:

an assembly housing having a plurality of cavities, a plurality of wire receiving openings and a plurality of activating member openings, where one of the plurality of wire receiving openings and one of the plurality of activating member openings provides access from an exterior of the assembly housing to one of the plurality of cavities; and

a plurality of wire termination assemblies, where one of the plurality of wire termination assemblies is positioned at least partially the one of the plurality of cavities, each of the plurality of wire termination assemblies includes:

a wire terminal including a clamp brace connected to a clamping member, the clamping member being movable between a closed position where a wire can be clamped between the clamping member and the clamp brace, and an open position where the wire can be inserted through the one of the plurality of wire receiving openings in the housing and between the clamping member and the clamp brace; and

an activating member extending at least partially through the one of the plurality of activating member openings in the assembly housing, the activating member being interactive with the clamping member such that movement of the activating member in a first direction causes the activating member to apply a mechanical load to the clamping member causing the clamping member to move from the closed position to the open position, and movement of the activating member in a second direction removes the mechanical load from the clamping member so that the clamping member moves from the open position to the closed position.

13 . The electrical wiring device according to claim 12 , wherein the clamping member includes a wire press member such that the wire can be clamped between the wire press member and the clamp brace.

14 . The electrical wiring device according to claim 12 , wherein the clamping member comprises a biasing member.

15 . The electrical wiring device according to claim 12 , wherein the activating member remains in the first position or the second position until manually moved.

16 . The electrical wiring device according to claim 12 , wherein the movement of the activating member in the second direction is opposite the movement of the activating member in the first direction.

17 . The electrical wiring device according to claim 12 , wherein the movement of the activating member in the first direction and the second direction is parallel to the clamp brace.

18 . The electrical wiring device according to claim 12 , wherein the movement of the activating member in the first direction and the second direction is one of linear motion, rotational motion, torque motion, pivotable motion and twist motion.

19 . The electrical wiring device according to claim 12 , wherein the movement of the activating member in the first direction and the second direction is linear motion.

20 . The electrical wiring device according to claim 12 , wherein movement of the activating member in the first and second directions is relative to the clamping member.

21 . The electrical wiring device according to claim 12 , wherein movement of the activating member in the first direction is outward relative to the assembly housing and wherein movement of the activating member in the second direction is inward relative to the assembly housing.

22 . The electrical wiring device according to claim 12 , wherein when in the closed position the clamping member for the line side wire termination assemblies and the load side wire termination assemblies can clamp the wire with a force that is substantially perpendicular to a longitudinal axis of the wire.

23 . A multi-pole electrical wiring device comprising:

a main housing having an interior that is at least partially hollow;

a line side wire attachment assembly attachable to the main housing, the line side wire attachment assembly includes:

an assembly housing having a plurality of cavities, a plurality of wire receiving openings and a plurality of activating member openings, where one of the plurality of wire receiving openings and one of the plurality of activating member openings provides access from an exterior of the assembly housing to one of the plurality of cavities; and

a plurality of wire termination assemblies, where one of the plurality of wire termination assemblies is positioned at least partially the one of the plurality of cavities, each of the plurality of line side wire termination assemblies includes:

a wire terminal including a clamp brace connected to a clamping member, the clamping member being movable between a closed position where a wire can be clamped between the clamping member and the clamp brace, and an open position where the wire can be inserted through the one of the plurality of wire receiving openings in the housing and between the clamping member and the clamp brace; and

an activating member extending at least partially through the one of the plurality of activating member openings in the assembly housing, the activating member being interactive with the clamping member such that movement of the activating member in a first direction causes the activating member to apply a mechanical load to the clamping member causing the clamping member to move from the closed position to the open position, and movement of the activating member in a second direction removes the mechanical load from the clamping member so that the clamping member moves from the open position to the closed position; and

a load side wire attachment assembly attachable to the main housing, the load side wire attachment assembly includes:

an assembly housing having a plurality of cavities, a plurality of wire receiving openings and a plurality of activating member openings, where one of the plurality of wire receiving openings and one of the plurality of activating member openings provides access from an exterior of the assembly housing to one of the plurality of cavities; and

a plurality of wire termination assemblies, where one of the plurality of wire termination assemblies is positioned at least partially the one of the plurality of cavities, each of the plurality of load side wire termination assemblies includes:

a wire terminal including a clamp brace connected to a clamping member, the clamping member being movable between a closed position where a wire can be clamped between the clamping member and the clamp brace, and an open position where the wire can be inserted through the one of the plurality of wire receiving openings in the housing and between the clamping member and the clamp brace; and

an activating member extending at least partially through the one of the plurality of activating member openings in the assembly housing, the activating member being interactive with the clamping member such that movement of the activating member in a first direction causes the activating member to apply a mechanical load to the clamping member causing the clamping member to move from the closed position to the open position, and movement of the activating member in a second direction removes the mechanical load from the clamping member so that the clamping member moves from the open position to the closed position.

24 . The electrical wiring device according to claim 23 , wherein the clamping member for the line side wire termination assemblies and the load side wire termination assemblies includes a wire press member such that the wire can be clamped between the wire press member and the clamp brace.

25 . The electrical wiring device according to claim 23 , wherein the clamping member for the line side wire termination assemblies and the load side wire termination assemblies is a biasing member.

26 . The electrical wiring device according to claim 23 , wherein the activating member for the line side wire termination assemblies and the load side wire termination assemblies remains in the first position or the second position until manually moved.

27 . The electrical wiring device according to claim 23 , wherein the movement of the activating member for the line side wire termination assemblies and the load side wire termination assemblies in the second direction is opposite the movement of the activating member in the first direction.

28 . The electrical wiring device according to claim 23 , wherein the movement of the activating member for the line side wire termination assemblies and the load side wire termination assemblies in the first direction and the second direction is parallel to the clamp brace.

29 . The electrical wiring device according to claim 23 , wherein the movement of the activating member for the line side wire termination assemblies and the load side wire termination assemblies in the first direction and the second direction is one of linear motion, rotational motion, torque motion, pivotable motion and twist motion.

30 . The electrical wiring device according to claim 23 , wherein the movement of the activating member for the line side wire termination assemblies and the load side wire termination assemblies in the first direction and the second direction is linear motion.

31 . The electrical wiring device according to claim 23 , wherein movement of the activating member for the line side wire termination assemblies and the load side wire termination assemblies in the first and second directions is relative to the clamping member.

32 . The electrical wiring device according to claim 23 , wherein movement of the activating member for the line side wire termination assemblies and the load side wire termination assemblies in the first direction is outward relative to the housing and wherein movement of the activating member in the second direction is inward relative to the housing.

33 . The electrical wiring device according to claim 23 , wherein when in the closed position the clamping member for the line side wire termination assemblies and the load side wire termination assemblies can clamp the wire with a force that is substantially perpendicular to a longitudinal axis of the wire.

34 . A multi-pole electrical wiring device comprising:

a main housing having an interior that is at least partially hollow;

a line side wire attachment assembly attachable to the main housing, the line side wire attachment assembly includes:

an assembly housing having a plurality of cavities, a plurality of wire receiving openings and a plurality of activating member openings, where one of the plurality of wire receiving openings and one of the plurality of activating member openings provides access from an exterior of the assembly housing to one of the plurality of cavities; and

a plurality of wire termination assemblies, where one of the plurality of wire termination assemblies is positioned at least partially the one of the plurality of cavities, each of the plurality of line side wire termination assemblies includes:

a wire terminal including a clamp brace connected to a clamping member, the clamping member being movable between a closed position where a wire can be clamped between the clamping member and the clamp brace, and an open position where the wire can be inserted between the clamping member and the clamp brace; and

an activating member extending at least partially through the one of the plurality of activating member openings in the housing, the activating member being interactive with the clamping member such that movement of the activating member in a first direction from a first position to a second position causes the activating member to move the clamping member from the closed position to the open position, and movement of the activating member in a second direction permits the clamping member to automatically move from the open position to the closed position, wherein the activating member remains in the first position or the second position until manually moved; and

a load side wire attachment assembly attachable to the main housing, the load side wire attachment assembly includes:

an assembly housing having a plurality of cavities, a plurality of wire receiving openings and a plurality of activating member openings, where one of the plurality of wire receiving openings and one of the plurality of activating member openings provides access from an exterior of the assembly housing to one of the plurality of cavities; and

a plurality of wire termination assemblies, where one of the plurality of wire termination assemblies is positioned at least partially the one of the plurality of cavities, each of the plurality of load side wire termination assemblies includes:

a wire terminal including a clamp brace connected to a clamping member, the clamping member being movable between a closed position where a wire can be clamped between the clamping member and the clamp brace, and an open position where the wire can be inserted between the damping member and the clamp brace; and

an activating member extending at least partially through the one of the plurality of activating member openings in the housing, the activating member being interactive with the clamping member such that movement of the activating member in a first direction from a first position to a second position causes the activating member to move the clamping member from the closed position to the open position, and movement of the activating member in a second direction permits the clamping member to automatically move from the open position to the closed position, wherein the activating member remains in the first position or the second position until manually moved.

35 . The electrical wiring device according to claim 34 , wherein the clamping member for the line side wire termination assemblies and the load side wire termination assemblies includes a wire press member such that the wire can be clamped between the wire press member and the clamp brace.

36 . The electrical wiring device according to claim 34 , wherein the clamping member for the line side wire termination assemblies and the load side wire termination assemblies is a biasing member.

37 . The electrical wiring device according to claim 34 , wherein the movement of the activating member for the line side wire termination assemblies and the load side wire termination assemblies in the second direction is opposite the movement of the activating member in the first direction.

38 . The electrical wiring device according to claim 34 , wherein the movement of the activating member for the line side wire termination assemblies and the load side wire termination assemblies in the first direction and the second direction is parallel to the clamp brace.

39 . The electrical wiring device according to claim 34 , wherein the movement of the activating member for the line side wire termination assemblies and the load side wire termination assemblies in the first direction and the second direction is one of linear motion, rotational motion, torque motion, pivotable motion and twist motion.

40 . The electrical wiring device according to claim 34 , wherein the movement of the activating member for the line side wire termination assemblies and the load side wire termination assemblies in the first direction and the second direction is linear motion.

41 . The electrical wiring device according to claim 34 , wherein when in the closed position the clamping member for the line side wire termination assemblies and the load side wire termination assemblies can clamp the wire with a force that is substantially perpendicular to a longitudinal axis of the wire.

42 . The electrical wiring device according to claim 34 , wherein movement of the activating member for the line side wire termination assemblies and the load side wire termination assemblies in the first and second directions is relative to the clamping member.

43 . The electrical wiring device according to claim 34 , wherein movement of the activating member for the line side wire termination assemblies and the load side wire termination assemblies in the first direction is outward relative to the housing and wherein movement of the activating member in the second direction is inward relative to the housing.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 17, 2024
From: PAPAGEORGE, RYAN GENE; SCANZILLO, THOMAS L.; LO, DENNY; WURMS, SCOTT; ITZLER, ROY J.
To: HUBBELL INCORPORATED
Reel/Frame 067746/0347 →
Continuity (5)
Provisional Application 63449708 · Mar 3, 2023
Provisional Application 63449692 · Mar 3, 2023
Provisional Application 63449700 · Mar 3, 2023
Provisional Application 63425891 · Nov 16, 2022
Related Publication 20240162633A1 · May 16, 2024
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