Siemens Sirius Safety relay, screw, 3NO + 1NC, 24VDC

Product Overview

The 3SK1213-1AB40 is a SIRIUS safety relay output expansion unit (3RO Power) specifically designed for high-power applications requiring enhanced switching capabilities. This power-rated expansion module provides 3 NO contacts for relay enabling circuits plus 1 NC contact for relay signaling circuit, operating at 24 V DC with robust screw terminal connections. The unit features a reinforced design optimized for power applications, offering superior current handling capabilities compared to standard output expansion units. Designed to work in conjunction with SIRIUS safety relay basic units, this power expansion module is ideal for applications requiring control of high-power actuators, heavy-duty contactors, or multiple high-current loads in demanding industrial environments.

Key Features & Specifications

• Product Type: Output expansion unit (3RO Power) for high-power safety applications
• Contact Configuration: 3 NO (Normally Open) power-rated enabling circuits + 1 NC (Normally Closed) signaling circuit
• Supply Voltage: 24 V DC
• Terminal Type: Screw terminals for secure high-current connections
• Power Rating: Enhanced power handling capabilities for demanding applications
• Expansion Function: Extends high-power output capabilities of safety relay basic units
• Enabling Circuits: 3 NO power-rated contacts for heavy-duty actuator control
• Signaling Circuit: 1 NC contact for status indication and monitoring
• Robust Design: Reinforced construction for high-power switching applications
• Industrial Grade: Heavy-duty construction for harsh industrial environments

Technical Data

• Supply Voltage: 24 V DC
• Net Weight: 1.058 kg (heavy-duty construction)
• Packaging Dimensions: 90.00 x 101.00 x 123.00 mm
• Terminal Technology: Screw terminals for high-current field connections
• Housing: Reinforced industrial-grade housing for power applications
• Mounting: Standard DIN rail mounting capability
• Operating Temperature: Industrial temperature range
• Power Rating: 3RO Power configuration for enhanced current handling
• Connection Method: Screw terminal connections for high-current field wiring

Contact Performance

• Power-Rated Enabling Circuits:
  • 3 Normally Open (NO) power-rated contacts
  • Enhanced current handling capacity for heavy-duty loads
  • Superior switching performance for high-power applications
• Signaling Circuit Contact:
  • 1 Normally Closed (NC) contact
  • Status monitoring and feedback capability
  • Diagnostic and signaling functions
• Contact Life: Extended life cycle under high-power switching conditions
• Switching Reliability: Optimized for high-current, high-power applications
• Load Handling: Designed for heavy-duty actuators and high-power loads

Safety Features

• Power Output Expansion: Provides high-power output contacts for demanding safety systems
• Enhanced Current Handling: Power-rated contacts for heavy-duty applications
• Multiple Power Circuits: 3 NO power contacts for comprehensive high-current control
• Status Monitoring: NC contact for signaling and diagnostic purposes
• 24 V DC Operation: Reliable DC operation for industrial power applications
• Robust Construction: Heavy-duty design for high-power switching reliability
• Screw Terminal Connections: Secure, high-current field connections
• System Integration: Seamless integration with SIRIUS safety relay basic units
• Fail-Safe Design: Ensures safe state even under high-power fault conditions

Standards & Compliance

• Safety Standards: Designed for high-power industrial safety applications
• Product Lifecycle: PM300 Active Product status
• Export Control: AL: N / ECCN: N classification
• Environmental: RoHS directive compliance since 05.11.2012
• Waste Management: WEEE (2012/19/EU) Take-Back Obligation compliant
• Country of Origin: Czech Republic
• Product Classification: Class A standard product with return eligibility
• Power Standards: Designed for enhanced power handling capabilities

Applications

The 3SK1213-1AB40 is ideal for high-power safety applications where heavy-duty actuators, large contactors, or multiple high-current loads need to be controlled. Common applications include heavy industrial machinery with high-power motor contactors, steel processing equipment with large actuators, mining equipment with heavy-duty safety systems, power generation facilities with high-current safety devices, and manufacturing systems requiring multiple high-power outputs. The power-rated contacts make it perfect for controlling large brake systems, heavy-duty solenoid valves, high-power lighting systems, or multiple motor contactors simultaneously, while the NC signaling circuit provides essential status feedback for control systems.

Important Notes

• Power Expansion Unit: Specifically designed for high-power applications
• Supply Voltage: 24 V DC operation for power system compatibility
• Contact Configuration: 3 NO power-rated enabling + 1 NC signaling contacts
• Terminal Type: Screw terminals for high-current field wiring connections
• Installation: Standard DIN rail mounting despite heavy-duty construction
• System Design: Requires safety relay basic unit for complete system operation
• Power Rating: Enhanced current handling capabilities for demanding applications
• Heavy-Duty Construction: Reinforced design for high-power switching reliability

Package Information

• EAN: 4011209913806
• UPC: Not available
• Packaging Dimensions: 90.00 x 101.00 x 123.00 mm
• Packaging Quantity: 1 piece
• Net Weight: 1.058 kg

REACH Compliance Information

This product contains substances from the REACH candidate list in concentrations higher than 0.1% weight by weight: Lead and Lead monoxide (lead 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