EATON LSHU-E50/3-KL Main Line Protection Switch, 50 A, 3-Pole, 230/400 V AC, Characteristic E, Selective

Main line protection switch with selective tripping characteristic E, rated at 50 A and 3 poles for 230/400 V AC systems. This circuit breaker provides reliable protection for main distribution lines, ensuring high selectivity and short-circuit breaking capacity up to 25 kA. Its compact modular design allows DIN rail mounting, making it suitable for industrial and commercial electrical installations.

Advantages

The LSHU-E50/3-KL offers exceptional selectivity, preventing unnecessary downtime by isolating only the faulty circuit. With a rated current of 50 A and 3-pole configuration, it handles high loads while maintaining safety. The E characteristic ensures precise tripping for main line protection, and the 25 kA breaking capacity provides robust short-circuit protection. Screw terminals accommodate conductors up to 70 mm² rigid, ensuring secure connections.

Suitable for

• Main distribution boards in industrial facilities
• Commercial buildings with high power demands
• Electrical panels requiring selective coordination
• Applications with 230/400 V AC three-phase systems

Key specifications

• Product type: Main line protection switch
• Number of poles: 3
• Rated current (In): 50 A
• Rated voltage (Ue): 230/400 V AC
• Tripping characteristic: E
• Selectivity: Yes
• Short-circuit breaking capacity (Icn): 25 kA
• Frequency: 50/60 Hz
• Mounting type: DIN rail (EN 60715)
• Terminal type: Screw terminals
• Terminal capacity (rigid): 1.5 - 70 mm²
• Terminal capacity (flexible): 1.5 - 50 mm²
• Degree of protection (front): IP40
• Degree of protection (terminals): IP20
• Operating temperature range: -25 to +50 °C
• Standards: IEC/EN 60947-2, VDE 0660 Part 101

Recommendations

For optimal performance, install in a DIN rail enclosure with adequate ventilation. Verify conductor sizes and torque settings during installation to ensure reliable connections. This switch is ideal for selective coordination in main distribution boards.