Schneider Electric K1F003ULH Harmony K

The Schneider Electric K1F003ULH is a reliable 3-pole cam changeover switch from the Harmony K line. With a 12 A rating and changeover capability (“2-0-1” positions), this switch is ideal for control of power sources, switching between circuits, or isolating sections of an installation in industrial or commercial panels.

Key Features & Benefits

• 3-Pole Changeover Design
  The “2-0-1” marking denotes two ON positions (2 and 1) with an OFF (0) center, allowing safe switching between two sources or circuits.

• 12 A Current Rating
  Rated at 12 A, suitable for moderate loads.

• Switching Angle 45°
  Provides a 45° travel for switching between OFF and ON positions (left/right 0-315° / 0-45°).

• Front Mount Plate (45 × 45 mm), Multifixing
  Mounts neatly into standard panel cutouts using its front plate, allowing flexible installation methods.

• Durable Handle and Legend
  Equipped with a black 35 mm rotary handle and metallic legend indicating positions “2-0-1”.

• Rated Insulation Voltage & Protection
  Insulation rated for 690 V, pollution degree 3 per IEC 60947-1. Protection rating is IP40.

• Terminal & Wiring Details
  Includes screw clamp (captive) terminals. Capacity includes flexible conductors (2 × 1.5 mm²) and solid conductors (1 × 2.5 mm²).

• Mechanical & Electrical Durability
  Designed for high mechanical life (≈ 1,000,000 cycles in some utilization categories) with good performance under IEC AC-3 / AC-21 / AC-23A duty ratings.

• Operating & Environmental Range

  • Ambient temperature (operation): -25 °C … +55 °C

  • Storage temperature: -40 °C … +70 °C

Technical Specifications Summary

Ideal Applications

• Switching between two power sources or supply circuits in control or distribution panels

• Electrical isolation and changeover in motor control centers or machine control panels

• Backup or redundant power switching systems

• Industrial or commercial installations where robustness, clear positions, and a compact footprint are important