Gustav Hensel Mi 7455 Load Break Switch 125A 3-Pole IP65

The Gustav Hensel Mi 7455 is a robust 3-pole load break switch designed for industrial and commercial electrical distribution systems. With a rated current of 125 A and a rated operational voltage of 690 V AC, this switch ensures reliable switching and isolation under load. It is part of the Hensel Mi series, offering modular integration into Mi distribution enclosures with IP65 protection for harsh environments.

Advantages

High breaking capacity (50 kA at 400V) ensures safety during short circuits. The compact modular design allows easy installation in Hensel Mi 7xxx enclosures. Screw terminals accommodate flexible cables up to 50 mm² and rigid cables up to 70 mm², simplifying wiring. Compliant with IEC 60947-3 for global standards.

Suitable for

• Industrial power distribution panels
• Commercial building electrical systems
• Machine tool disconnection
• Switchgear and control gear assemblies

Key specifications

• Switch Type: Load Break Switch
• Rated Current (Ie): 125 A
• Number of Poles: 3
• Rated Operational Voltage (Ue): 690 V AC
• Rated Insulation Voltage (Ui): 1000 V
• Rated Impulse Withstand Voltage (Uimp): 8 kV
• Switching Capacity Category: AC-23B
• Rated Short-Circuit Breaking Capacity (Icu): 50 kA at 400V
• Degree of Protection (installed): IP65
• Connection Type: Screw Terminals
• Max. Terminal Cross-Section (flexible): 50 mm²
• Max. Terminal Cross-Section (rigid): 70 mm²
• Standards: IEC 60947-3
• Operating Temperature: -25°C to +40°C

Recommendations

For optimal performance, use with Hensel Mi 7xxx enclosures. Ensure proper cable sizing and torque settings per manufacturer guidelines. This switch is not equipped with auxiliary contacts; order separately if needed.