3LD switches for UL/CSA as "Manual Motor Controllers"

The 3LD switches for UL/CSA are approved in accordance with UL/CSA as "manual motor controllers", and they can be used as repair switches in the molded-plastic enclosure, for example. However, they do not have UL approval as main control switches.

Standards

UL / CSA

Circuit breaker

Type

3LD20

3LD21

3LD22

3LD25

3LD27

3LD28

3LD23

3LD24

Rated operational voltage Ue

V AC

600

600

600

600

600

600

600

600

Rated uninterrupted current Iu

A

10

20

30

60

100

125

160

250

Current

rating

A 600

A 600

A 600

--

--

--

--

--

Pilot duty

P 600

P 600

P 600

--

--

--

--

--

Conventional thermal current Ith

A

16

25

32

63

100

125

160

250

Maximum rated power (AC-3)

120 V 3 ∼

HP

1

3

3

5

10

15

--

--

Alternating current motors 40 ... 60 Hz

(HP = horse power)

240 V

HP

3

7.5

10 (7.5)1)

15

30

40

40

50

480 V

HP

7.5

10

20 (15)1)

40

60

75

75

100

600 V

HP

10

15

30 (20)1)

50

75

100

75

75

120 V 1 ∼

HP

0.5

2

2

3

--

--

--

--

240 V

HP

1.5

3

3

10

--

--

--

--

Conductor cross-sections

Copper cable

AWG

18 ... 10

14 ... 8

14 ... 8

14 ... 6

12 ... 1

12 ... 1

1 ... MCM400

Tightening torque

Nm

1.5 ... 2

2 ... 2.5

2 ... 2.5

2.5 ... 3

2.5 ... 3

2.5 ... 3

10

1) Values in brackets apply to devices in molded-plastic enclosure.