Overview
The Siemens 3UA5800-2C is a thermal overload relay engineered for motor protection in industrial automation. This device provides adjustable overcurrent protection in the 16–25A range and integrates directly with 3TF series contactors. Thermal overload relays form the core of motor starter protection, preventing equipment damage from sustained overcurrent conditions.
Key Features
- Thermal overload protection mechanism for consistent, reliable performance
- Adjustable current setting within 16–25A range
- Plug-in design for quick installation and replacement
- Compatible with Siemens 3TF46, 3TF47, 3TF48, and 3TF49 contactors
- Compact form factor for space-constrained control cabinets
Technical Specifications
- Current Range: 16–25A
- Type: Thermal Overload Relay
- Series: 3UA5800
- Mounting: Plug-in (DIN mount on 3TF contactors)
- Compatibility: 3TF46, 3TF47, 3TF48, 3TF49 series contactors
- Protection: Overload / overcurrent
- Adjustability: Manual setting within range
Typical Applications
The 3UA5800-2C is widely used in:
- Three-phase induction motor protection
- Industrial pump and fan control
- Machine tool motor protection
- HVAC compressor starters
- General industrial motor control cabinets
Compatibility & Replacements
This relay is designed as a direct plug-in replacement for OEM Siemens 3UA5800-2C units and fits Siemens 3TF series contactors (models 3TF46, 3TF47, 3TF48, 3TF49). Aftermarket equivalents and direct replacements are available. Always verify contactor model before ordering to ensure proper fit and function.
