Overview
The Syrelec LUR current control monitoring relay is a robust control and protection device designed for industrial electrical systems requiring precise current monitoring. Rated for 110Vac operation, this relay provides adjustable threshold control and dependable switching action for machinery protection and process control.
Key Features
- 110Vac coil voltage for standard industrial power supply compatibility
- Adjustable current threshold and hysteresis settings for flexible application tuning
- Automatic or manual relay control modes to suit equipment startup and shutdown requirements
- SPDT relay output for flexible control logic implementation
- 11-pin plug-in or DIN rail mounting options for flexible installation
- Compact design suitable for control panel and cabinet integration
Technical Specifications
The relay features a 0.1 to 400 VAC or VDC control range, allowing it to monitor a wide variety of voltage and current conditions. Output switching is rated for 10 A AC resistive / 1 A DC inductive at a maximum switching voltage of 250 VAC or DC. The unit has a relay power rating of 2500 VA at resistive load with an electrical life of 2 × 10⁵ operations at rated load. Operating temperature range is −10°C to +60°C (14°F to 140°F), with a weight of approximately 200 grams (7 oz.)
Typical Applications
- Motor overload and current monitoring in industrial machinery
- Pump and compressor current protection circuits
- Phase failure and imbalance detection in three-phase systems
- Load shedding and equipment protection in power distribution
- Maintenance and troubleshooting of existing automation systems
- Surplus parts replacement in legacy control systems
Compatibility & Replacements
Compatible With
- Standard 110Vac industrial control power supplies
- SPDT switching circuits and control logic
- DIN rail or 11-pin socket mounting systems
- General-purpose relay control panels and cabinets
- Legacy industrial machinery and equipment from 1980s–2010s
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. Similar Syrelec current control models include LIRT110A, DIR.T, and DIRT-110VAC variants. Confirm current monitoring range and output specifications match your application requirements before substitution.
Works With
- Manual operator interface and discrete hardwired control panels
- SPDT relay output compatible with standard industrial contactors and solenoids
- General-purpose electrical enclosures and control systems
- Legacy automation equipment requiring surplus relay replacement












