Siemens Safety relay, 2 enabling + 1 signaling circuits

Product Overview

The 3SK1112-1BB40 is a SIRIUS safety relay basic unit from the standard series, specifically designed for 24 V DC applications requiring electronic enabling circuits. This compact safety relay provides 2 enabling circuits plus 1 signaling circuit, making it ideal for dual-channel safety monitoring and control functions. The device features robust screw terminal connections for secure field wiring and reliable long-term operation in industrial environments. As an electronic enabling circuit safety relay, it provides essential safety functions for machinery protection, emergency stop systems, and safety interlock applications where precise control and monitoring at 24 V DC voltage levels are required for optimal safety performance.

Key Features & Specifications

• Safety Relay Type: Basic unit from SIRIUS standard series with electronic enabling circuits
• Supply Voltage: 24 V DC (dedicated low-voltage operation)
• Circuit Configuration: 2 enabling circuits plus 1 signaling circuit
• Terminal Type: Screw terminals for secure field connections
• Electronic Enabling: Advanced electronic enabling circuit technology
• Dual Channel: 2 enabling circuits for redundant safety monitoring
• Signaling Circuit: 1 dedicated signaling circuit for status indication
• Compact Design: Space-efficient design for control panel integration
• Industrial Grade: Designed for harsh industrial environments
• Standard Series: Part of the proven SIRIUS 3SK1 standard series

Technical Data

• Supply Voltage: 24 V DC
• Net Weight: 0.168 kg
• Packaging Dimensions: 36.00 x 109.00 x 152.00 mm
• Terminal Technology: Screw terminals for reliable connections
• Housing: Compact industrial housing design
• Mounting: Standard DIN rail mounting capability
• Circuit Type: Electronic enabling circuits
• Operating Temperature: Industrial temperature range
• Connection Method: Screw terminal connections for field wiring

Contact Performance

• Enabling Circuits:
  • 2 electronic enabling circuits for dual-channel safety monitoring
  • High switching reliability for safety applications
  • Electronic switching technology for precise control
• Signaling Circuit:
  • 1 dedicated signaling circuit for status monitoring
  • Feedback capability for system diagnostics
  • Status indication and communication functions
• Electronic Control: Advanced electronic switching and monitoring
• Switching Reliability: Proven performance in safety-critical applications

Safety Features

• Electronic Enabling Circuits: Advanced electronic technology for precise safety control
• Dual Channel Monitoring: 2 enabling circuits provide redundant safety monitoring
• 24 V DC Operation: Safe low-voltage operation for personnel protection
• Fail-Safe Design: Ensures safe state in case of power failure or fault conditions
• Signaling Circuit: Dedicated circuit for status monitoring and diagnostics
• Screw Terminal Connections: Secure, vibration-resistant field connections
• Standard Series Reliability: Proven performance in industrial safety applications
• Compact Form Factor: Efficient use of control panel space

Standards & Compliance

• Safety Standards: Designed for industrial safety applications
• Product Lifecycle: PM300 Active Product status
• Export Control: AL: N / ECCN: 9N9999 classification
• Environmental: RoHS directive compliance since 05.11.2012
• Waste Management: WEEE (2012/19/EU) Take-Back Obligation compliant
• Country of Origin: Germany
• Product Classification: Class A standard product with return eligibility
• Quality Standards: Manufactured to Siemens industrial quality standards

Applications

The 3SK1112-1BB40 is ideal for 24 V DC safety applications requiring electronic enabling circuits and dual-channel monitoring. Common applications include low-voltage machinery safety systems, automated production equipment protection, packaging machinery interlocks, conveyor system safety controls, and process monitoring systems. The electronic enabling circuits make it particularly suitable for applications requiring precise switching control and monitoring capabilities. The 24 V DC operation is perfect for systems where low-voltage safety circuits are preferred, such as in areas with personnel access or where reduced electrical hazards are required. The dual enabling circuits allow for complex safety logic implementation while maintaining compact design.

Important Notes

• Supply Voltage: Specifically designed for 24 V DC operation
• Electronic Enabling: Features advanced electronic enabling circuit technology
• Circuit Configuration: 2 enabling circuits plus 1 signaling circuit
• Terminal Type: Screw terminals for secure field wiring connections
• Installation: Standard DIN rail mounting for control panel integration
• Dual Channel: Two enabling circuits provide redundant safety monitoring
• Low Voltage: 24 V DC operation for enhanced personnel safety

Package Information

• EAN: 4011209913547
• UPC: Not available
• Packaging Dimensions: 36.00 x 109.00 x 152.00 mm
• Packaging Quantity: 1 piece
• Net Weight: 0.168 kg

REACH Compliance Information

This product contains substances from the REACH candidate list in concentrations higher than 0.1% weight by weight: Lead, Lead monoxide, 2,2',6,6'-tetrabromo-4,4'-isopropylidenediphenol, 2-methyl-1-(4-methylthiophenyl)-2-morpholinopropan-1-one, 6,6'-di-tert-butyl-2,2'-methylenedi-p-cresol, and Lead titanium zirconium oxide. Based on current available information, these substances do not pose any risk when the product is used as intended, including disposal.

Download existing graphical data for this product:

• Product Details - Siemens Industry Mall
• Technical Data Sheet (PDF)
• Product Support - Siemens Industry Online Support