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VB-4211 Safety Light Curtain | F3SJ Series Industrial Safety Sensor

The OMRON VB-4211 is a robust, multiple-circuit limit switch with an integrated head and switch box design. This "monoblock" construction improves head strength and sealing performance, achieving a mechanical durability of 5,000,000 operations .

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Key Specifications Parameter Specification Manufacturer OMRON Automation and Safety Series VB Product Type Multiple Limit Switch (Multi-Pull Limit Switch) Actuator Type Roller Plunger (roller diameter: 6.8 mm) Number of Circuits 4 rows / 4 independent circuits Contact Configuration SPDT x 4 (Single Pole Double Throw) Switch Function On-Momentary (snap-action) Contact Current Rating 10 A (AC), 0.6 A (600 mA) (DC) Voltage Rating - AC 125 V / 250 V Voltage Rating - DC 125 V Operating Force (OF) Max. 1500 gf (14.71 N) Release Force (RF) Min. 500 gf Pre-travel (PT) Max. 1.5 mm (0.060") Overtravel (OT) Min. 3.5 mm (0.138") Differential Travel (DT) Max. 0.5 mm (0.020") Operating Position (OP) 32.0 ± 0.4 mm (1.260") Electrical Life 300,000 cycles Mechanical Life 5,000,000 cycles Maximum Operating Frequency (Mechanical) 120 operations/minute Protection Rating IP67 (Dust-tight, Waterproof) Termination Style Screw Terminal Conduit Entry Side, two locations Box Shape With flange / With Head Mounting Type Chassis mount / Base mount Operating Temperature -10°C to 80°C Storage Temperature -25°C to 70°C (typical for series) Ambient Humidity 35% to 85% (typical for series) Main Body Dimensions (W × H × L) 68 mm × 82 mm × 98 mm Overall Dimensions (including actuator) Approx. 114 mm × 68 mm × 82 mm Standards & Approvals EN/IEC (with ground terminal), CCC, CE (with ground terminal)