R.STAHL 80701-1-HR311

Description

• Used to detect valve position, door position, gate position, or machine travel limits.
• Suitable for control circuits, signaling circuits, and safety-related switching tasks.
• Designed for chemical, oil and gas, pharmaceutical, and process industry applications.

• Manufacturer:​ R.STAHL Schaltgeräte GmbH
• Model:​ 8070/1-1-HR311
• Product Type:​ Position switch
• Explosion Protection:​ Ex d IIC T6 reported for gas; Ex tb IIIC reported for dust in related 8070 series data
• Zone Suitability:​ Hazardous area use according to ATEX and IECEx approvals
• Rated DC Voltage:​ 250 V DC
• Rated AC Voltage:​ 500 V AC equal potential; 250 V AC unequal potential
• Rated Current:​ 10 A reported
• Switching Function:​ Slow-action contact reported for this variant
• Contacts:​ 1 normally closed and 1 normally open reported in related listings
• Contact Material:​ Silver-nickel in related 8070 series data
• Short-Circuit Protection:​ Up to 10 A with gG characteristic reported
• Ambient Temperature:​ -20°C to +50°C in listed data
• Humidity:​ Up to 90% relative humidity, non-condensing
• Protection Rating:​ IP65 or IP67 depending on source listing
• Enclosure Material:​ Polyamide PA 6.6 or glass-fiber-reinforced polyamide depending on listing
• Mounting:​ Wall, panel, flange, or actuator-dependent mounting
• Dimensions:​ Approximately 70 × 40 × 30 mm in listed data
• Weight:​ Approximately 0.21 kg

• Robust actuator operation for industrial position detection.
• Positive-opening contact capability in related 8070 series designs.
• Interchangeable contact element for simplified maintenance.
• Repositionable actuator options in related 8070 family products.
• Suitable for safety circuits according to IEC/EN 60947-5-1 in related designs.
• Reliable switching under vibration and shock exposure.

• Valve position monitoring
• Explosion-hazard process areas
• Chemical plants
• Oil and gas facilities
• Pharmaceutical production
• Machine guard and door monitoring
• Conveyor and material handling limits

• Compact thermoplastic enclosure.
• Actuator head compatible with industrial operating cams or moving machine parts.
• Screw terminals for field wiring.
• Sealed housing suitable for dusty or wet environments depending on protection rating.
• Designed for fixed mounting on machine structures or panels.

• A moving machine part actuates the switch plunger or lever.
• The mechanical movement changes the state of internal contacts.
• The switch sends an electrical signal to the control system.
• In safety-related designs, positive opening helps ensure contacts open even if contact welding occurs.

• Install in a location accessible for adjustment and maintenance.
• Align actuator travel with switch operating point.
• Use terminals and conductors suitable for the rated voltage and current.
• Ensure proper torque on electrical connections.
• Follow ATEX or IECEx installation rules for hazardous areas.
• Verify zone classification and certification before use.

• Do not exceed rated voltage, current, or switching capacity.
• Avoid prolonged exposure beyond specified temperature and humidity limits.
• Inspect actuators for mechanical wear.
• Prevent water ingress if installed below rated protection level.
• Replace damaged contact elements with approved spare parts.
• Confirm certificate markings match the installation zone.