Schneider Electric K1F027MLH Harmony K

Monitor voltages accurately and safely with the Schneider Electric K1F027MLH voltmeter cam switch from the Harmony K range. This switch is designed for switchboards and distribution panels where selecting between phase-to-phase and phase-to-neutral voltage measurements is required. Ideal for professional applications in industrial, commercial, or utility settings.

Key Features & Benefits

• 7-Position Voltmeter Switch
  Offers multiple voltage measurement selections: phase-to-phase (L1-L2, L2-L3, L3-L1) and phase-to-neutral (L1-N, L2-N, L3-N), plus an OFF position.

• High Current & Insulation Ratings
  Rated for 12 A conventional free-air thermal current (Ith). Insulation voltage up to 690 V, pollution degree 3.

• Designed for Accurate Measurements
  Enables switching between different voltage legs or neutral for flexible monitoring. Provides precision in control room or switchboard environments.

• Front-Mounting & Standard Plate Size
  Mounts from the front using a 45 × 45 mm multifixing plate. Features a black 35 mm handle, with a clearly marked metallic legend “0 – L1N – L2N – L3N – L1L2 – L2L3 – L3L1”.

• Durability & Long Life
  Built for mechanical longevity: approximately 1,000,000 cycles.

• Robust Standards Compliance
  Conforms to IEC/EN standards (such as IEC 60947-1, power circuit switch standards etc.). Offers IP40 protection rating. No padlocking facility.

• Environmentally Resilient
  Operates reliably between -25 °C and +55 °C; storage down to -40 °C and up to +70 °C. Designed to withstand vibration and shock per IEC procedures.

Technical Specifications

Typical Applications

• Switchboards and distribution panels needing to measure phase-to-phase and phase-to-neutral voltages

• Electrical control rooms where monitoring of different voltage lines is required for diagnostics or maintenance

• Industrial or utility environments where a reliable selector for voltage measurements improves safety and monitoring accuracy