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LK3SU3
The LK3SU3 from Schneider Electric serves as a disconnect switch designed to switch and isolate electrical circuits effectively. With a current capacity of 600 A, it operates at a voltage rating of 600 VAC and can handle frequencies of 50 or 60 Hz.
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Technical specifications for LK3SU3
| Manufacturer | Schneider Electric |
|---|---|
| Product Type | Disconnect Switch |
| Product Line | Other |
| Part Number | LK3SU3 |
| UPC | 785901179962 |
| Weight | 19.00 lbs (8.62 kg) |
| Series | Breakers |
| Current Capacity | 600 A |
| Voltage Rating | 600 VAC, 50/60 Hz |
| Insulation Voltage | 1000 V |
| Impulse Withstand | 12 kV (IEC Uimp) |
| Short-Circuit Rating | 48 kA (for 1 s) |
| Mechanical Endurance | ~6000 cycles |
| Electrical Cycles | ~1000 on-off operations |
| Shaft Size | 15×15 mm |
| Handle Type | Rotary, External Mount |
| Panel Mounting | Plate-mounted |
| Rated Motor Power | ~200 hp @ 600 VAC |
Schneider Electric's LK3SU3 is engineered as a disconnect switch, providing reliable isolation in electrical applications. This unit is rated for a current capacity of 600 A and can operate at voltages up to 600 VAC, suitable for both 50 Hz and 60 Hz power systems. It is designed to withstand an insulation voltage of 1000 V and features an impulse withstand capability of 12 kV, which meets IEC standards for surge protection.
The short-circuit rating for this model is 48 kA for a duration of one second, revamping its reliability during fault conditions. The mechanical endurance of the switch is notable, with an estimated lifespan of about 6000 mechanical cycles and 1000 electrical cycles of on-off operation.
The LK3SU3 is equipped with a rotary handle that is mounted externally, allowing easy access and operation. The switch also utilizes a plate-mounted design, further enhancing its flexibility in installation. With a shaft size of 15×15 mm, it accommodates various mounting positions. For higher applications, the rated motor power is approximately 200 horsepower at 600 VAC. This disconnect switch weighs around 19 lb (8.6 kg), making it a solid choice for robust industrial environments.