SICK 6026143 Safety Extension Relay

Description:

The SICK UE410-4R03 Safety Extension Relay (Part No. 6026143) is used in industrial machine safety systems to expand the safe output contacts of a Flexi Classic modular safety controller. Commonly installed in automated production lines, machine guarding systems, robotic cells, conveyors, and manufacturing equipment requiring additional safety-rated relay outputs. Maintenance technicians, automation engineers, and system integrators use this relay expansion module for machine safety upgrades, control cabinet expansion, and replacement of OEM safety control components. The UE410-4R03 is part of the SICK Flexi Classic safety controller platform and provides four positively guided safety relay outputs. 

Applications:

The SICK UE410-4R03 Safety Extension Relay is commonly used in emergency stop circuits, safety gate monitoring, light curtain systems, two-hand control stations, safety laser scanners, robotic safety systems, and machine interlock applications. It expands the output capacity of Flexi Classic safety controllers while maintaining SIL 3 and Category 4/PL e functional safety performance.

Technical Specifications:

• Brand: SICK
• Part Number: 6026143
• Model: UE410-4R03
• Product Type: Safety Extension Relay Module
• Series: Flexi Classic UE410
• Module Type: Relay Expansion Module
• Safety Rating: SIL 3, Category 4, PL e
• Number of Safety Outputs: 4 Normally Open (NO) Enabling Contacts
• Number of Signal Outputs: 2 (24 VDC)
• Supply Voltage: Via FLEXBUS+
• Connection Type: Plug-in Screw Terminals
• Mounting: DIN Rail
• Switching Voltage: 5–253 VAC/DC
• Contact Rating: 6 A Maximum per Contact
• Protection Class: IP20 (Terminals), IP40 (Housing)
• Application: Machine Safety, Emergency Stop, Guard Monitoring, and Safety Output Expansion

Common Replacements:

• SICK UE410-2RO3 Safety Relay Expansion Module
• SICK Flexi Soft XTIO Safety I/O Module
• SICK UE410-4RO4 Safety Relay Expansion Module