Product: Proximity Switch, Model SN-04N Type: DC 3-conductor NPN normally open (NO) Theory: Inductive Output: Switch Sensing distance: 4 mm Measuring object: Metal Power consumption: 15 mA Supply voltage: DC 10-30 V Frequency: Up to 250 Hz Mounting hole size: 3 x 8 mm Outer material: ABS resin Key benefits - Non-contact metal detection for wear-free, reliable sensing in automation - Compact 4 mm sensing distance supports tight layouts and small parts - Simple integration with DC 10-30 V systems using a normally open (NPN NO) output - Robust ABS housing suited for general equipment environments - Low power draw (15 mA) helps reduce overall system energy use - Easy mounting with standard 3 x 8 mm mis aligning holes Specifications - Brand/model: Proximity Switch SN-04N - Type: DC 3-conductor NPN NO - Principle: Inductive - Output: Switch - Sensing distance: 4 mm - Target: Metal - Power: 15 mA - Supply: DC 10-30 V - Frequency: up to 250 Hz - Mounting: Hole size 3 x 8 mm - Housing: ABS resin Applications - Detecting metal parts on conveyors or assembly lines for trigger/stop actions - End-of-travel or home-position sensing in compact automation equipment - Presence verification in metal tooling, robotics, or packaging lines