Technical Parameters General Product Type: Miniature contactor relay (mini contactor) Series: KC6 Model / Order Code: KC6‑40E (e.g., KC6‑40E‑05) Control Voltage: 220 – 240 V DC coil Number of Poles: 4 Contact Configuration: 4 × Normally Open (NO) Mounting: DIN‑rail or panel mount with screw terminals Coil Consumption: Low coil power (approx. ~3.5 W at pull‑in and holding) Coil Type: DC‑operated, hum‑free coil for silent operation Switch Position Indication: Incorporated for visible state of contacts Housing: Compact block design for tight spaces Electrical Ratings Rated Control Supply Voltage (Uc): 220 – 240 V DC Rated Insulation Voltage (Ui): Approx. 690 V (IEC) Rated Impulse Withstand Voltage (Uimp): ~6 kV Rated Operational Current (AC‑15): Up to ~4 A at 220 – 240 V AC (control/auxiliary loads) Rated Operational Current (DC‑13): ~0.4 A at 220 – 240 V DC (control loads) Main/Control Circuit Capability: Suitable for small control and signal switching loads Mechanical Terminal Type: Screw connection, secure wiring Mechanical Endurance: High mechanical life suitable for frequent switching Electrical Switching Frequency: Designed for moderate control switching cycles Contact Material: Standard silver alloy or equivalent industrial contact material Physical Approx. Dimensions: Width: ~52.5 mm Depth: ~46.5 mm Height: ~57.5 mm Weight: ~0.175 kg Enclosure Protection: IP20 at terminals (front protection as panel design allows) Environmental Operating Temperature Range: Typical industrial ambient range (e.g., −25 °C to +55 °C) Storage Temperature Range: Extended (e.g., −40 °C to +80 °C) Pollution Degree: Suitable for industrial control environments Applications Signal and control circuit switching Industrial automation control panels Motor control auxiliary switching Residential/commercial electrical systems Space‑limited relay/contactor functions