Description
Detailed Parameter Table
| Parameter Name | Parameter Value |
| Product Model | ABB SINT4611C |
| Manufacturer | ABB |
| Product Category | Safety Relay Module |
| Safety Standard | EN ISO 13849-1 (Cat. 4, PL e), IEC 61508 (SIL 3) |
| Input Channels | 2 (dual-channel safety inputs) |
| Output Channels | 3 (2 safety outputs, 1 auxiliary output) |
| Supply Voltage | 24V DC (±15%) |
| Max Switching Current | 6A (safety outputs) |
| Response Time | <20ms |
| Operating Temperature | -25°C to +60°C |
| Protection Rating | IP20 |
| Dimensions (W×H×D) | 22.5mm × 99mm × 114mm |
| Mounting Type | DIN Rail (35mm) |
| Diagnostic Features | LED status indicators, cross-circuit detection |
ABB SINT4611C
Product Introduction
The ABB SINT4611C is a high-performance safety relay module designed for critical machine safety applications. As part of ABB’s comprehensive safety solutions portfolio, this device provides reliable emergency stop and safety door monitoring functions in industrial automation systems.
Engineered to meet the most stringent safety requirements, the SINT4611C achieves Category 4, PL e according to EN ISO 13849-1 and SIL 3 according to IEC 61508. Its dual-channel architecture ensures fail-safe operation, making it ideal for protecting personnel and equipment in hazardous environments.
With its compact design and comprehensive diagnostic capabilities, the ABB SINT4611C simplifies safety system implementation while maintaining the highest levels of reliability. The module’s robust construction and wide operating temperature range make it suitable for demanding industrial applications across various sectors.
Core Advantages and Technical Highlights
Highest Safety Standards Compliance:
The ABB SINT4611C meets the most rigorous international safety standards, including Category 4, PL e and SIL 3 requirements. This ensures maximum protection for personnel and machinery in critical applications.
Advanced Diagnostic Capabilities:
Featuring comprehensive LED status indicators and cross-circuit detection, the module provides immediate visual feedback about system status and potential faults, significantly reducing troubleshooting time.
Flexible Application:
With two safety inputs and three outputs (including one auxiliary output), the SINT4611C can be configured for various safety functions including emergency stops, safety gates, light curtains, and two-hand control applications.
Robust Performance:
The module operates reliably in harsh industrial environments, with a wide temperature range (-25°C to +60°C) and high immunity to electrical interference, ensuring consistent performance in demanding conditions.
Easy Integration:
Standard 35mm DIN rail mounting and pluggable screw terminals simplify installation and maintenance, while the compact design saves valuable panel space.
ABB SINT4611C
Typical Application Scenarios
The ABB SINT4611C is extensively used in:
Automated Manufacturing:
For emergency stop circuits and safety door monitoring on robotic workcells and assembly lines, ensuring worker protection while maintaining production efficiency.
Material Handling Systems:
Implementing safety controls for conveyors, palletizers, and automated storage systems where personnel interaction with moving machinery is required.
Packaging Machinery:
Providing reliable safety functions for high-speed packaging equipment where quick machine stopping is critical for operator safety.
Metal Processing:
In presses, shears, and other metal forming equipment where the highest level of safety is required to prevent serious injuries.
Woodworking Machinery:
For saws, planers, and other wood processing equipment where rapid and reliable safety shutdown is essential.
Related Model Recommendations
ABB SINT4610C: Basic safety relay module with 1 safety output
ABB SINT4621C: Expanded safety relay with monitoring functions
ABB SINT4631C: Advanced safety relay with delay functions
ABB SINT4641C: Safety relay for light curtain applications
ABB SINT4651C: Safety relay for two-hand control applications
ABB SINT4661C: Safety relay with muting function
ABB SINT4671C: Safety relay for emergency stop applications
ABB SINT4681C: Safety relay with start/restart interlock
Installation, Commissioning and Maintenance Instructions
Installation Preparation:
Ensure proper DIN rail mounting in a control cabinet with adequate clearance for heat dissipation. Verify that all safety inputs are properly wired with appropriate safety devices (e.g., emergency stop buttons, safety switches). Use proper cable routing to maintain separation between safety circuits and standard control wiring.
Commissioning:
After installation, perform a complete functional test of all safety functions. Verify proper operation of all connected safety devices and confirm that the safety outputs de-energize correctly when any safety input is activated. Check all LED indicators for proper status indication.
Maintenance Suggestions:
Regularly inspect all wiring connections for tightness and signs of wear. Periodically test the complete safety function (at least annually or as required by local regulations). Clean the module as needed to prevent dust accumulation that could affect heat dissipation. Replace the module immediately if any LED indicates a fault condition that cannot be resolved through normal troubleshooting.
Service and Guarantee Commitment
ABB provides a standard 24-month warranty for the SINT4611C safety relay module, covering defects in materials and workmanship. Our global service network offers comprehensive technical support for installation, commissioning, and troubleshooting. Safety system validation services are available through ABB’s certified safety engineers to ensure proper implementation according to relevant safety standards.
For critical applications, ABB offers extended warranty options and priority replacement services to minimize downtime. All safety relays undergo rigorous testing during manufacturing to ensure compliance with declared safety ratings and performance specifications.
