Overview
The Phoenix Contact ST-OE2-24DC/48DC/100 solid-state relay (part number 2911692) is a compact plug-in relay module designed for reliable signal isolation and DC load switching in industrial control systems. Built with integrated LED status indication and protective circuits in both input and output paths, this unit provides noise-free, maintenance-free operation compared to electromechanical alternatives.
Key Features
- Plug-in design: Direct integration with Phoenix Contact basic terminal blocks for quick installation and replacement
- Integrated protection: LED indicator and built-in protective circuits on input and output
- High voltage isolation: 2.5kV dielectric test between input and output circuits
- Compact form factor: Minimal footprint suitable for dense panel layouts
- Floating output: 2-conductor output circuit for flexible DC load switching
- No maintenance: Solid-state design eliminates mechanical wear and contact corrosion
Technical Specifications
- Input Voltage: 24V DC (rated)
- Output Voltage Range: 8–48V DC
- Maximum Output Current: 100mA
- Contacts: 1 normally open (N/O)
- Isolation Test Voltage: 2.5kV (input to output)
- Insulation Type: Basic insulation
- Output Configuration: Floating 2-conductor
- Status Indication: LED
- Protection: Integrated protective circuit, reverse polarity protection on output
- Part Number: 2911692
Typical Applications
- DC load switching in PLC and controller modules
- Signal isolation for discrete I/O circuits
- Industrial control panel logic circuits
- Terminal block-based control systems
- Low-voltage DC switching applications requiring isolation
Compatibility & Replacements
Compatible With
- Phoenix Contact basic terminal blocks (plug-in compatible)
- Phoenix Contact PLC interface modules
- Industrial PLC and controller systems requiring isolated DC switching
- DIN rail mounting systems using Phoenix Contact terminal blocks
Replaces / Drop-In Replacement For
Verify specific model interchangeability with your system integrator or Phoenix Contact technical support before ordering. Similar plug-in solid-state relays in the Phoenix Contact portfolio include OPT and DEK series variants with comparable 24V DC input and 48V DC output ratings.
Works With
- Phoenix Contact terminal block ecosystems (PHOENIX CONTACT INTERFACE family)
- Industrial control platforms requiring galvanic isolation
- Standard DIN rail enclosures and panel assemblies
- DC control circuits and logic modules
