Switch disconnectorsSwitch disconnectors
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.