ETI SV 3125 3-napainen 125A kuormakytkin keskusasennukseen 002423317

In industrial and commercial electrical installations, a reliable main switch is essential for safe isolation and load breaking. The ETI SV 3125 3-pole 125A panel mount switch provides a robust solution for controlling and disconnecting power in distribution boards and machinery.

Who is it for

This switch is intended for electricians, panel builders, and maintenance professionals who need a dependable disconnector for three-phase circuits up to 125 A. It is suitable for use as a main switch in low-voltage distribution systems, motor control centers, and industrial control panels.

Main features

• 3-pole construction for three-phase systems
• Rated current of 125 A for high-power applications
• Panel mount design for secure installation
• Load break capability for safe operation under load
• Compact size for space-constrained panels

Specifications

• Number of poles: 3P
• Rated current (In): 125 A
• Rated operational voltage (Ue): up to 690 V AC
• Rated insulation voltage (Ui): 1000 V
• Rated impulse withstand voltage (Uimp): 8 kV
• Rated short-time withstand current (Icw): 2 kA for 1s
• Rated conditional short-circuit current (Icc): 50 kA (with gG 125A fuse)
• Mechanical endurance: 10,000 operations
• Electrical endurance: 1,500 operations
• Operating temperature range: -25°C to +55°C
• Terminal capacity: max. 50 mm²
• Function: main switch, disconnector

Tips

Ensure proper torque on terminal screws to maintain reliable connections. For applications with high fault currents, use appropriate upstream protection such as fuses or circuit breakers. Regularly inspect contacts for wear, especially in frequently operated circuits.