Schlegel Elektrokontakt BFK Travel: 3 mmContact Type: Screw Connection 2.5 mm?Protection Class: II (protective…

The Schlegel Elektrokontakt BFK travel switch (SKU: BFK) is a precision-engineered limit switch designed for accurate position detection in industrial automation, machinery control, and safety interlock applications. This compact switch features a 3 mm actuation travel with a single normally closed (NC) and normally open (NO) contact configuration, providing reliable switching for control circuits. The BFK utilizes AgNi contact material, ensuring low contact resistance (<20 mΩ) and a mechanical/electrical service life of 1 million switching cycles under rated load. Its screw connection terminals accommodate conductor cross-sections from 0.34 mm² to 2.5 mm², secured with a 0.4 Nm torque specification for vibration-resistant installations. The switch meets IEC/EN 60947-5-1 and IEC/EN 61058-1 standards, with a rated insulation voltage (Ui) of 300V and a thermal continuous current (Ith) of 6A. For AC15 applications, it supports 240V at 1.5A, while DC13 applications cover 250V at 0.2A, 125V at 0.4A, 60V at 1A, and 24V at 2A. Operating temperature range spans -30°C to 70°C, with storage capability from -50°C to 85°C. Its IP20 protection rating ensures safe operation in control panels and enclosures. Typical applications include conveyor systems, packaging machinery, material handling equipment, and automated production lines where precise limit switching and safety interlocking are critical. The switch's minimal prell time (<10 ms) and low minimum switching voltage/current (5V, 1mA) enable reliable operation even in sensitive control circuits.