F11 Auxiliary Switch Series Fully Enclosed Modular Design

Working Conditions of F11 Auxiliary Switch Series

• Ambient temperature: -40°C to +40°C;
• Altitude: Not exceeding 3,000m;
• Humidity: Daily average relative humidity ≤ 95%, daily average water vapor pressure ≤ 2.2 kPa; monthly average relative humidity ≤ 90%, monthly average water vapor pressure ≤ 1.8 kPa;
• Vibration acceleration: ≤ 15 m/s²;
• Ambient air: Free from significant pollution by dust, smoke, corrosive or flammable gases, vapors, or salt spray.

Working Principle and Features of F11 Auxiliary Switches

The F11 auxiliary switch series consists of multiple identical modular units, with each stage containing contact pairs available in both delayed and non-delayed versions.

Operating Principle:

The series features a direct-drive design where an external drive (such as a linkage or handle) rotates the square shaft to turn the internal moving blades. The moving and stationary contacts adopt a clamp-type mechanism with high-elasticity bimetallic riveted silver tips, making or breaking the circuit through contact engagement to control the associated electrical loops.

Product Features:

• Functional Advantages: Time-delay contacts effectively compensate for the action delay of anti-pumping relays, while instantaneous contacts prevent components such as electronic counters from burning out caused by prolonged energization.
• Insulation & Heat Resistance: The insulating base is molded from polycarbonate (PC), offering exceptional heat resistance and dielectric properties.
• Comprehensive Performance: Characterized by a simple structure, reliable contact, high breaking capacity, and an extended service life.

Dimensions of F11 Auxiliary Switch Series