3RN2011-1BW30

Description

Thermistor motor protection relay

The SIRIUS 3RN2 is designed to protect motors against overheating, including in potentially explosive atmospheres, through direct temperature measurement with ATEX approval.

Technical details:

• Standard evaluation unit
• 22.5 mm enclosure
• Screw terminal
• 2 changeover contacts
• Us = 24 V-240 V AC/DC
• Manual/remote RESET
• ATEX approval
• 2 LEDs (ready/tripped)
• Electrical isolation test/RESET button
• Wire-break monitoring
• Short-circuit monitoring
• Available as monostable or bistable evaluation unit
• Available with one or two sensor circuits
• Auto RESET, manual RESET and/or remote RESET
• Available with screw-type or spring-loaded (push-in) terminals
• Widths of 17.5 mm or 22.5 mm
• For TH35 DIN rail or screw-on fastening with an adapter (accessory)
• With hard gold plated contacts
• Standardized accessories for all device versions

Customer benefits:

• Protects motors even under abnormal conditions such as heavy starting and insufficient cooling, rendering precautionary over-dimensioning unnecessary.
• Can be used in atmospheres where there is a possibility of gas or dust explosions.
• LEDs enable fast error diagnostics.
• Climate-resistant and safe to touch.
• Wide voltage range and international certifications allow worldwide use.
• Standardized accessories simplify selection and storage.
• Replaces the proven 3RN1 series, offering a reliable solution for every application.

Disclaimer: Generated by AI.