Square D TeSys LK Series Non-Fusible Disconnect Switch — 100A, 600V
The Square D TeSys LK Series LK4JU3N is a compact IEC-style non-fusible disconnect switch designed for reliable isolation of electrical equipment. Rated at 100A and 600V AC, this 3-pole panel mount switch provides a compact yet rugged solution for machine tool and industrial control applications where fusible protection is handled separately upstream.
Key Features
- Non-fusible disconnect switch design
- 3-pole configuration
- 100A current rating
- 600V AC voltage rating
- Panel mount installation
- Lug and ring terminal connection type
- Compact IEC-style form factor
Applications
Used to provide safe isolation for motor control centers, machine tools, HVAC equipment, and industrial machinery. The IEC-style design provides a compact, high-performance disconnect solution for commercial and industrial panel applications. The lug/ring terminal connection type supports direct conductor landing without adapters.
Product Details
- Manufacturer: Square D (Schneider Electric)
- Series: TeSys LK
- Model: LK4JU3N
- UPC: 78590154613
- Product Type: Non-Fusible Disconnect Switch
- Poles: 3
- Current Rating: 100A
- Voltage Rating: 600V AC
- Mounting: Panel Mount
- Connection Type: Lugs / Ring Terminals
- Dimensions: 6.30 H x 7.09 W x 3.75 D in.








