Overview
The ABB RXKC 2H RK331002-AH is a static time lag relay engineered for industrial control applications requiring precise time-delay switching. Part of ABB’s COMBIFLEX relay platform, this unit combines electromechanical reliability with straightforward plug-compatible installation. The 48-60V AC coil voltage makes it ideal for standard industrial control circuits, process interlocks, and sequential switching applications.
Key Features
- Static time-delay relay design for accurate, repeatable timing
- Adjustable time-delay range: 0.3 to 3.0 seconds
- 48-60V AC coil voltage—standard industrial supply compatibility
- Compact plug-in module format for modular relay panels
- COMBIFLEX platform integration for flexible system configuration
- New in box condition with standard factory warranty
Technical Specifications
This relay is designed for drop-in replacement in existing COMBIFLEX installations, eliminating the need for panel rewiring. The static timing circuit provides superior timing accuracy compared to mechanical dashpot designs, reducing maintenance and improving process repeatability across multiple start-stop cycles.
Typical Applications
- Sequential equipment startup/shutdown delays
- Motor soft-start acceleration ramps
- Pump or compressor unloading delays
- Valve closure and pressurization hold times
- Boiler ignition lockout and purge cycles
- Process interlocks and safety timer circuits
Compatibility & Replacements
The RXKC 2H module is compatible with ABB COMBIFLEX relay base units and standard IEC relay sockets. For legacy systems still using ASEA-branded modules, this ABB equivalent provides seamless replacement. Verify coil voltage and contact configuration against your existing installation before ordering. Direct substitution is typically possible within COMBIFLEX series installations; consult your panel documentation or contact technical support for non-standard applications.
