Description
BN20-11RZ-M16 by Schmersal MAGNETIC SWITCH 3AMP 120-250VAC safety-rated magnetic reed switch designed for non-contact monitoring of machine guards and protective covers in industrial environments. Featuring two reed contact outputs, a rugged aluminium housing, and up to 50 mm operating distance, it provides long service life and high resistance to vibration and harsh conditions.
Specifications:
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Switch principle: Magnetic (reed contact), non-contact activation
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Contacts: Two bistable contacts (1 NO + 1 NC)
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Switching distance: 5…50 mm depending on actuator magnet used
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Maximum switching voltage: 250 V AC/DC
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Maximum switching current: 3 A
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Max switching capacity: 120 VA / W
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Switching frequency: Up to ~1,080,000 operations per hour
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Mechanical lifespan: Minimum 1×10⁹ switching cycles
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Operating speed: Up to 18 m/s
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Repeat accuracy: ±0.3 mm
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Body material: Aluminium housing; active area metal-film coated
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Connection type: Screw terminals (M16 × 1.5)
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Ingress protection: IP67 (sealed against dust and water ingress)
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Dimensions (L × W × H): 47 × 104 × 52 mm
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Weight: Approximately 298 g (some distributor listings note ~300 g)
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Temperature range: –25 °C to +90 °C
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Vibration resistance: 50 g (sine wave)
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Compliance & standards: EN IEC 60947‑5‑1; UL c‑ULus General Purpose
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Actuator compatibility: BP series magnets (e.g. BP 10S, 20S, 31S; polarity-coded S/N)
** New - These products are new in box, sealed where applicable. Units are covered by 12 month conditional warranty