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0.312 In (1)

0.625 In (1)

1.1 In (1)

1.2 In (1)

1.5 In (2)

1.7 In (1)

1.32 In (1)

1.38 In (1)

1.48 In (2)

1.55 In (1)

1.57 In (1)

2 In (3)

2.5 In (1)

2.25 In (2)

2.52 In (3)

2.57 In (4)

2.75 In (3)

2.79 In (1)

2.86 In (1)

2.95 In (10)

2.325 In (1)

3 In (1)

3.2 In (1)

3.5 In (6)

3.9 In (1)

3.25 In (3)

3.63 In (11)

3.75 In (7)

3.188 In (1)

3.602 In (1)

4 In (8)

4.1 In (7)

4.4 In (5)

4.5 In (7)

4.14 In (1)

4.73 In (2)

4.74 In (2)

4.77 In (2)

4.81 In (2)

4.86 In (1)

4.87 In (9)

4.96 In (1)

4.485 In (1)

5 In (12)

5.5 In (2)

5.9 In (3)

5.11 In (10)

5.12 In (1)

5.25 In (1)

5.75 In (2)

5.856 In (1)

6.1 In (1)

6.5 In (10)

6.6 In (7)

6.8 In (14)

6.25 In (1)

6.38 In (4)

6.75 In (7)

6.81 In (1)

6.85 In (8)

6.88 In (9)

6.89 In (1)

6.93 In (17)

6.97 In (10)

7 In (24)

7.4 In (2)

7.5 In (10)

7.7 In (2)

7.09 In (1)

7.12 In (8)

7.25 In (12)

7.27 In (18)

7.35 In (6)

7.36 In (2)

7.38 In (21)

8 In (6)

8.2 In (1)

8.3 In (1)

8.4 In (4)

8.5 In (28)

8.6 In (5)

8.7 In (1)

8.8 In (5)

8.15 In (8)

8.25 In (6)

8.75 In (10)

8.88 In (30)

9 In (3)

9.4 In (4)

9.5 In (4)

9.7 In (2)

9.8 In (3)

9.9 In (5)

9.17 In (2)

9.24 In (4)

9.64 In (3)

9.74 In (1)

9.75 In (4)

9.87 In (4)

9.88 In (13)

9.89 In (105)

9.96 In (1)

10 In (52)

10.1 In (1)

10.2 In (1)

10.4 In (32)

10.5 In (4)

10.13 In (81)

10.22 In (230)

10.25 In (5)

10.28 In (2)

10.63 In (11)

10.472 In (2)

11 In (8)

11.2 In (17)

11.5 In (63)

11.8 In (2)

11.15 In (1)

11.18 In (169)

11.19 In (34)

11.25 In (42)

11.26 In (20)

11.28 In (91)

11.29 In (3)

11.38 In (4)

11.43 In (67)

11.44 In (17)

11.51 In (24)

11.61 In (89)

11.62 In (3)

11.63 In (43)

11.65 In (5)

11.75 In (1)

11.85 In (1)

11.95 In (14)

11.97 In (7)

12 In (5)

12.1 In (1)

12.2 In (2)

12.3 In (1)

12.5 In (14)

12.25 In (4)

12.31 In (13)

12.39 In (37)

12.42 In (55)

12.43 In (116)

12.63 In (14)

12.69 In (13)

12.75 In (34)

12.76 In (2)

12.77 In (1)

12.79 In (22)

12.83 In (3)

12.84 In (5)

12.281 In (3)

12.638 In (1)

13 In (1)

13.5 In (141)

13.56 In (231)

13.68 In (13)

14 In (8)

14.2 In (1)

14.3 In (4)

14.4 In (1)

14.05 In (2)

14.5 In (53)

14.06 In (10)

14.07 In (88)

14.8 In (4)

14.12 In (32)

14.25 In (35)

15.1 In (1)

15.4 In (4)

15.5 In (2)

15.19 In (2)

15.46 In (15)

15.61 In (119)

15.91 In (3)

16 In (681)

16.1 In (7)

16.5 In (60)

16.7 In (2)

16.8 In (5)

16.41 In (30)

16.46 In (18)

17 In (223)

17.5 In (4)

17.12 In (4)

17.15 In (5)

17.25 In (1)

17.75 In (42)

17.82 In (1)

18 In (15)

18.5 In (1)

18.7 In (1)

18.8 In (1)

18.57 In (171)

19 In (2)

19.5 In (2)

19.7 In (1)

19.08 In (1)

19.9 In (1)

19.15 In (4)

19.16 In (3)

19.19 In (4)

19.31 In (30)

19.54 In (227)

19.94 In (3)

19.95 In (6)

19.99 In (19)

19.188 In (10)

20 In (51)

20.031 In (1)

21 In (3)

21.5 In (2)

21.49 In (40)

21.73 In (7)

22 In (29)

22.3 In (3)

22.4 In (7)

22.5 In (214)

22.7 In (1)

22.25 In (1)

22.66 In (1)

22.874 In (3)

23 In (19)

23.3 In (1)

23.15 In (28)

24.5 In (2)

24.9 In (5)

24.62 In (3)

24.95 In (1)

25 In (23)

25.5 In (60)

25.32 In (2)

25.34 In (1)

25.62 In (5)

26 In (8)

26.3 In (2)

26.4 In (1)

26.25 In (4)

27 In (28)

27.3 In (1)

27.4 In (1)

27.5 In (1)

27.6 In (3)

27.7 In (3)

27.18 In (33)

27.44 In (1)

27.66 In (3)

27.83 In (3)

28 In (1)

28.2 In (1)

28.5 In (1)

28.21 In (16)

29 In (14)

29.5 In (7)

29.32 In (9)

29.62 In (5)

30 In (42)

30.63 In (39)

30.88 In (3)

32.6 In (3)

32.87 In (256)

34.3 In (1)

35 In (1)

35.38 In (57)

36.5 In (2)

36.75 In (1)

37 In (3)

37.5 In (49)

37.49 In (66)

37.86 In (1)

39 In (3)

39.18 In (8)

39.19 In (33)

40 In (1)

41 In (1)

42 In (4)

42.62 In (4)

42.65 In (2)

43.82 In (12)

44.76 In (1)

45.5 In (19)

45.12 In (1)

45.75 In (1)

46 In (2)

46.12 In (10)

49.9 In (33)

50.15 In (17)

51 In (14)

51.36 In (3)

54.49 In (3)

55.52 In (1)

56 In (2)

57 In (27)

57.5 In (43)

57.47 In (7)

57.48 In (1)

58 In (32)

59.73 In (1)

63 In (7)

63.31 In (1)

64 In (32)

64.5 In (19)

65 In (1)

65.3 In (1)

65.4 In (1)

65.5 In (6)

66 In (1)

70.55 In (1)

71.75 In (6)

72 In (30)

72.25 In (2)

72.46 In (1)

72.75 In (1)

74 In (3)

74.73 In (1)

75 In (2)

82.25 In (3)

82.375 In (1)

83 In (1)

85 In (2)

86 In (1)

86.73 In (30)

89.39 In (24)

92.49 In (1)

173 mm (1)

200 mm (1)

270 In (4)

420 In (1)

.5 In (1)

.58 In (1)

.99 In (1)

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0.2 In (1)

0.437 In (1)

1 In (4)

1.2 In (1)

1.5 In (1)

1.9 In (1)

1.22 In (3)

1.83 In (1)

1.405 In (1)

2 In (13)

2.5 In (2)

2.8 In (1)

2.25 In (1)

2.75 In (1)

3 In (2)

3.2 In (4)

3.3 In (1)

3.4 In (1)

3.5 In (23)

3.8 In (1)

3.26 In (1)

3.35 In (3)

3.72 In (5)

3.74 In (1)

3.125 In (1)

3.463 In (1)

4 In (24)

4.5 In (2)

4.9 In (12)

4.57 In (1)

4.65 In (2)

4.75 In (1)

4.343 In (1)

4.346 In (1)

5 In (9)

5.2 In (1)

5.3 In (5)

5.4 In (2)

5.5 In (4)

5.7 In (3)

5.9 In (3)

5.25 In (15)

5.35 In (2)

5.62 In (3)

6 In (7)

6.1 In (2)

6.2 In (1)

6.3 In (2)

6.5 In (2)

6.7 In (37)

6.14 In (3)

6.25 In (5)

6.75 In (1)

6.88 In (1)

6.598 In (2)

6.872 In (1)

7 In (14)

7.2 In (1)

7.4 In (4)

7.5 In (5)

7.25 In (1)

7.32 In (4)

7.44 In (10)

7.63 In (3)

7.75 In (2)

8 In (15)

8.4 In (5)

8.5 In (104)

8.7 In (1)

8.22 In (66)

8.25 In (3)

8.31 In (14)

8.42 In (1)

8.58 In (3)

8.63 In (5)

8.75 In (2)

8.88 In (3)

8.375 In (3)

9 In (91)

9.5 In (41)

9.7 In (1)

9.8 In (3)

9.17 In (1)

9.24 In (73)

9.25 In (12)

9.63 In (6)

9.75 In (3)

9.625 In (1)

9.875 In (15)

10 In (66)

10.1 In (1)

10.2 In (9)

10.3 In (8)

10.5 In (36)

10.7 In (1)

10.8 In (4)

10.9 In (1)

10.21 In (32)

10.22 In (3)

10.23 In (1)

10.25 In (25)

10.41 In (1)

10.44 In (1)

10.69 In (5)

10.75 In (2)

10.81 In (6)

10.82 In (3)

10.88 In (10)

10.98 In (1)

11 In (55)

11.5 In (50)

11.19 In (3)

11.25 In (1)

11.26 In (4)

11.47 In (1)

11.62 In (32)

11.63 In (63)

12 In (55)

12.5 In (5)

12.14 In (3)

12.38 In (44)

12.39 In (1)

12.43 In (7)

12.58 In (1)

12.77 In (2)

13 In (55)

13.3 In (1)

13.68 In (3)

13.93 In (2)

14 In (1)

14.3 In (1)

14.06 In (1)

14.6 In (4)

14.9 In (2)

14.12 In (1)

14.14 In (71)

14.19 In (9)

14.25 In (12)

14.37 In (5)

14.38 In (4)

14.88 In (7)

14.93 In (2)

14.375 In (1)

15 In (7)

15.4 In (1)

15.24 In (14)

15.35 In (1)

15.61 In (1)

15.81 In (29)

15.88 In (25)

16 In (15)

16.5 In (17)

16.6 In (1)

16.25 In (2)

16.27 In (25)

16.41 In (1)

16.52 In (1)

16.53 In (2)

16.75 In (1)

16.87 In (9)

17.5 In (12)

17.73 In (1)

17.88 In (6)

17.125 In (3)

18.5 In (39)

18.9 In (1)

18.18 In (1)

18.67 In (2)

18.81 In (5)

18.95 In (4)

19 In (1)

19.4 In (4)

19.08 In (91)

19.09 In (1)

19.25 In (19)

19.27 In (2)

19.38 In (2)

20 In (3)

20.5 In (31)

20.25 In (1)

20.82 In (6)

21 In (26)

21.9 In (3)

21.25 In (2)

21.49 In (4)

21.58 In (67)

21.68 In (11)

21.69 In (43)

21.99 In (16)

22.5 In (10)

22.7 In (2)

22.16 In (30)

23 In (1)

23.6 In (2)

23.31 In (1)

24 In (5)

24.32 In (30)

24.63 In (11)

24.75 In (5)

24.77 In (3)

24.78 In (2)

24.93 In (6)

24.95 In (86)

25 In (8)

25.02 In (28)

25.5 In (9)

25.25 In (1)

25.32 In (29)

26 In (2)

26.1 In (75)

26.3 In (2)

26.13 In (1)

26.56 In (2)

27 In (9)

27.25 In (18)

27.63 In (24)

27.66 In (7)

27.83 In (6)

27.89 In (4)

28 In (629)

28.12 In (2)

29 In (17)

29.25 In (4)

29.44 In (1)

29.62 In (192)

29.75 In (2)

29.94 In (12)

30.1 In (57)

30.5 In (4)

30.13 In (1)

30.26 In (8)

30.63 In (3)

30.83 In (1)

30.88 In (1)

31 In (6)

32 In (444)

32.5 In (8)

32.63 In (90)

33 In (1)

34.38 In (39)

35 In (1)

35.38 In (139)

36 In (1)

37 In (1)

37.02 In (12)

37.38 In (1)

37.69 In (12)

37.86 In (1)

37.89 In (1)

38 In (16)

38.5 In (1)

38.15 In (83)

38.64 In (1)

39.83 In (14)

40 In (3)

40.08 In (10)

40.89 In (88)

41.02 In (5)

41.5 In (1)

42.83 In (3)

43.11 In (33)

44.31 In (50)

44.74 In (10)

45.12 In (12)

45.19 In (3)

46.25 In (38)

48 In (3)

49.13 In (4)

50.25 In (23)

50.31 In (22)

51.36 In (6)

51.82 In (46)

51.83 In (1)

52.7 In (5)

52.25 In (4)

53.8 In (8)

53.79 In (1)

53.81 In (2)

54.20 In (1)

54.23 In (1)

54.50 In (7)

54.63 In (13)

55.65 In (5)

55.66 In (1)

55.82 In (9)

56.24 In (35)

57.47 In (186)

57.48 In (4)

57.63 In (11)

58.86 In (1)

59.73 In (1)

61.16 In (1)

61.52 In (9)

62.23 In (39)

62.89 In (230)

62.97 In (14)

63 In (44)

63.31 In (36)

63.76 In (3)

64.20 In (2)

66.97 In (8)

69.13 In (42)

70.23 In (1)

70.31 In (3)

70.32 In (5)

70.97 In (4)

71.72 In (18)

71.75 In (23)

72.5 In (28)

73.34 In (3)

73.77 In (24)

74.31 In (7)

74.34 In (176)

76.69 In (4)

78.11 In (7)

80.77 In (11)

85.59 In (55)

85.65 In (1)

88 mm (1)

88.2 In (38)

89.39 In (2)

90.23 In (5)

95.83 In (346)

140 mm (1)

380 In (1)

405 In (4)

.1 In (2)

.2 In (1)

.04 In (1)

.5 In (1)

.6 In (1)

.7 In (1)

.8 In (1)

.9 In (2)

.89 In (1)

.98 In (1)

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1 In (5)

1.5 In (2)

1.054 In (1)

1.57 In (1)

1.77 In (3)

1.624 In (1)

2 In (4)

2.1 In (1)

2.2 In (2)

2.4 In (1)

2.5 In (5)

2.07 In (5)

2.7 In (1)

2.47 In (1)

2.64 In (1)

3 In (3)

3.4 In (12)

3.5 In (7)

3.07 In (13)

3.25 In (1)

3.75 In (1)

3.88 In (1)

3.91 In (1)

3.129 In (1)

3.180 In (1)

3.434 In (1)

4 In (20)

4.4 In (1)

4.5 In (32)

4.45 In (2)

4.46 In (2)

4.75 In (4)

5 In (24)

5.1 In (4)

5.5 In (4)

5.8 In (2)

5.9 In (5)

5.44 In (1)

5.75 In (1)

5.78 In (2)

5.88 In (2)

5.98 In (1)

5.856 In (1)

6 In (3)

6.1 In (4)

6.2 In (3)

6.3 In (6)

6.5 In (3)

6.7 In (3)

6.8 In (1)

6.9 In (1)

6.13 In (3)

6.38 In (9)

6.77 In (3)

6.82 In (1)

6.625 In (3)

6.735 In (1)

7 In (11)

7.2 In (23)

7.5 In (6)

7.8 In (16)

7.09 In (1)

7.9 In (2)

7.25 In (18)

7.45 In (8)

7.55 In (3)

7.69 In (1)

7.73 In (23)

7.75 In (18)

7.263 In (2)

8 In (38)

8.1 In (1)

8.2 In (2)

8.4 In (6)

8.05 In (1)

8.5 In (1)

8.06 In (5)

8.12 In (3)

8.13 In (27)

8.25 In (1)

8.67 In (2)

8.69 In (12)

8.76 In (99)

8.81 In (12)

8.82 In (2)

8.87 In (21)

9 In (19)

9.3 In (2)

9.5 In (119)

9.7 In (2)

9.12 In (14)

9.13 In (9)

9.25 In (5)

9.875 In (1)

10 In (11)

10.5 In (30)

10.9 In (1)

10.12 In (3)

10.22 In (1)

10.25 In (17)

10.45 In (1)

10.56 In (4)

10.63 In (1)

10.76 In (16)

10.78 In (4)

10.79 In (3)

10.81 In (6)

10.93 In (2)

10.197 In (1)

11 In (5)

11.3 In (2)

11.4 In (5)

11.5 In (7)

11.8 In (4)

11.13 In (52)

11.15 In (1)

11.19 In (14)

11.25 In (3)

11.26 In (4)

11.44 In (10)

11.47 In (1)

11.58 In (67)

11.62 In (9)

11.72 In (1)

11.75 In (2)

11.79 In (21)

11.84 In (15)

11.85 In (6)

11.94 In (11)

11.95 In (26)

11.96 In (16)

11.97 In (4)

12 In (2)

12.5 In (36)

12.7 In (4)

12.33 In (97)

12.45 In (3)

12.53 In (2)

12.66 In (1)

12.69 In (3)

12.75 In (25)

12.83 In (1)

12.88 In (36)

12.93 In (4)

13 In (3)

13.5 In (10)

13.7 In (2)

13.25 In (57)

13.42 In (9)

13.68 In (171)

13.75 In (10)

14 In (1)

14.02 In (39)

14.05 In (2)

14.12 In (6)

14.25 In (9)

14.56 In (2)

14.67 In (2)

14.89 In (23)

15 In (29)

15.1 In (1)

15.3 In (1)

15.5 In (19)

15.52 In (5)

15.91 In (20)

16 In (63)

16.1 In (172)

16.2 In (1)

16.3 In (1)

16.4 In (2)

16.5 In (13)

16.08 In (43)

16.13 In (49)

16.18 In (2)

16.25 In (2)

16.35 In (170)

16.54 In (36)

16.66 In (3)

16.75 In (6)

16.85 In (6)

16.95 In (15)

17 In (14)

17.5 In (12)

17.18 In (34)

17.31 In (1)

17.69 In (7)

17.75 In (2)

17.81 In (1)

18 In (37)

18.3 In (18)

18.9 In (1)

18.57 In (244)

18.63 In (4)

19 In (68)

19.9 In (1)

19.15 In (17)

19.16 In (8)

19.22 In (1)

19.25 In (2)

19.56 In (2)

20 In (24)

20.11 In (89)

20.38 In (91)

21 In (1)

21.3 In (20)

21.5 In (3)

21.39 In (1)

21.73 In (87)

22 In (15)

22.25 In (4)

22.66 In (56)

23 In (41)

23.5 In (1)

23.08 In (19)

23.13 In (2)

23.46 In (1)

23.65 In (2)

23.66 In (38)

23.88 In (1)

24 In (790)

24.3 In (1)

24.5 In (5)

24.6 In (1)

24.7 In (2)

24.08 In (8)

24.8 In (1)

24.9 In (10)

24.12 In (124)

24.25 In (8)

24.26 In (10)

24.32 In (1)

24.38 In (19)

24.46 In (32)

24.75 In (1)

24.88 In (16)

24.91 In (1)

25 In (17)

25.01 In (22)

25.3 In (1)

25.5 In (22)

25.7 In (1)

25.12 In (2)

25.13 In (4)

25.21 In (13)

25.25 In (4)

25.32 In (2)

25.34 In (2)

25.38 In (65)

25.62 In (21)

25.97 In (3)

26 In (37)

26.25 In (43)

26.35 In (6)

26.37 In (8)

26.57 In (30)

26.58 In (6)

26.94 In (10)

27 In (35)

27.5 In (76)

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Disconnects

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The main purpose of using disconnect switches is to "disconnect" electrical circuits so that the flow of electricity is interrupted. They are used to make working electrical circuits safe. They make it possible to interrupt the flow of electricity without actually having to touch the energized parts of the circuit. They can also be locked into the "off" position, so that a person can't accidentally turn on the power that was just turned off for maintenance.

Known as safety interlock switches, heavy duty safety switches are designed for specialized applications and, often, environments. They differ from ordinary power switches in a key way: They have an added level of control that lets them function as part of an overall safety system, using either a mechanical apparatus or a sensor to ensure that access to dangerous machines is limited to users who are authorized, sufficiently trained, and safely attired. A safety switch is used in a variety of applications, such as industrial environments or commercial kitchens, and it serves analogous functions in those spaces.

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Schneider Electric Disconnects

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Schneider Electric SN800SNI 800A 200% neutral factory installed ASSEMBLY KIT

$3969.77 $5523.90

800A 200% neutral factory installed ASSEMBLY KIT

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Schneider Electric APJ10487 PLUG, CROUSE-HINDS 100A

$3490.06 $4856.40

PLUG, CROUSE-HINDS 100A

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Schneider Electric H361ARB Safety switch, heavy duty, fusible, 30A, 3 poles, 20 hp, 20 hp, 600 VAC/DC, NEMA 3R, bolt-on hub,

$1092.15 $1317.68

Safety switch, heavy duty, fusible, 30A, 3 poles, 20 hp, 20 hp, 600 VAC/DC, NEMA 3R, bolt-on hub,

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Schneider Electric H365NAWKVW Safety switch, heavy duty, fusible, 400A, 3 poles, 250 hp, 600 VAC/DC, NEMA 12, neutral , viewing window

$12413.74 $17052.00

Safety switch, heavy duty, fusible, 400A, 3 poles, 250 hp, 600 VAC/DC, NEMA 12, neutral , viewing window

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Schneider Electric H425AWK Safety switch, heavy duty, fusible, 400A, 4 poles, 125 hp, 240 VAC/250 VDC, NEMA 12

$6806.35 $8211.84

Safety switch, heavy duty, fusible, 400A, 4 poles, 125 hp, 240 VAC/250 VDC, NEMA 12

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Schneider Electric H426 Safety switch, heavy duty, fusible, 600A, 4 poles, 200 hp, 240 VAC/250 VDC, NEMA 1

$9822.15 $11850.38

Safety switch, heavy duty, fusible, 600A, 4 poles, 200 hp, 240 VAC/250 VDC, NEMA 1

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Schneider Electric H367AWKVW Safety switch, heavy duty, fusible, 800A, 3 poles, 500 hp, 600 VAC/DC, NEMA 12, viewing window

$19006.89 $26108.60

Safety switch, heavy duty, fusible, 800A, 3 poles, 500 hp, 600 VAC/DC, NEMA 12, viewing window

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Schneider Electric CH363DSWC Receptacle Switch - 100 Amp, 600 VAC, 600 VDC, NEMA 3/3R/4/4X/5/12

$9649.09 $11632.60

Schneider Electric CH363DSWC - CH363DSWC Safety switch, heavy duty, fusible, 100A, 600V, 3 poles, 75hp, NEMA 4, 4X, 5, 304 steel, crouse hinds receptacle

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Schneider Electric BCAP - Disconnect Cap

$2.42 $6.65

Schneider Electric BCAP - Cap, safety switch, for bolt on hub, B opening, NEMA 3R

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Schneider Electric VLS3P030R2 Non-Fusible Disconnect Switch - 30 Amp, 480 VAC

$97.10 $112.00

Schneider Electric VLS3P030R2 - Disconnect switch, TeSys VLS, body switch, 30A, 20HP at 480VAC, UL98, three phase, 50kA SCCR, size 2, DIN rail mount

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Schneider Electric VLS3P030D2 Non-Fusible Disconnect Switch - 30 Amp, 480 VAC

$108.02 $124.60

Schneider Electric VLS3P030D2 - Disconnect switch, TeSys VLS, body switch, 30A, 20HP at 480VAC, UL98, three phase, 50kA SCCR, size 2, door mount

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Schneider Electric HM0610F - Disconnect Handle Kit

$196.88 $212.80

Schneider Electric HM0610F - Handle kit, safety switch, Series F, handle/mechanism/locking bar/gasket

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FAQs

Are motor disconnects and auxiliary contacts used in electrical distribution systems to break the connection between motors and their power supply?

Yes, motor disconnects and auxiliary contacts are used in electrical distribution systems to break the connection between motors and their power supply for safety and maintenance purposes.

Have AC disconnects completely de energized and disconnected motors in harsh environments in most any industry?

Yes, AC disconnects are designed to completely de-energize and disconnect motors in harsh environments across various industries, ensuring safety and maintenance.

Disconnects vs Circuit Protection

Disconnects

Disconnects are intended to remove and restore power from any electrical equipment that is downstream of that disconnect. In most cases, this is a manual operation and is actuated only when power needs to be removed or restored to a particular circuit. Disconnects do not typically provide any type of state monitoring ability nor do they offer any type of circuit protection, they are simply used to remove and restore power. It is common to see electrical disconnects used in situations where larger amounts of voltage are present. External disconnects function by allowing the operation of switching power to be performed outside of an electrical enclosure. It is also common to see disconnects require power to be shut off before the enclosure can be opened. This type of disconnect is found on circuits with high voltage potentials and allows for much safer operation when the electrical equipment inside the enclosure needs to be accessed.

Circuit Protection

Circuit protection devices, such as circuit breakers and fuses, function differently from disconnects in that they have the ability to disconnect power to any devices downstream from their location by monitoring current and power surge events. They are not designed to operate as a switch. When using fuses, if an overcurrent event or surge occurs, they will need to be replaced as they are only intended to be used once. Circuit breakers can be reset, but are not intended to switch power on and off as their main function. In many cases it is necessary to have both an electrical disconnect and a circuit protection device to ensure that any hardware on the circuit does not become damaged because of overcurrent or power surges.

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