Protection Relays Current Monitoring Relays and Transducers LSR-0 Self-powered load sensor/low-cost proof relay Description The LSR-0 is a self-powered load sensor intended for use as a proof relay. It is used to verify that current is flowing as intended. It has a guaranteed 15A pull-in current and 2.5A drop-out current. Proof relays are typically used to interlock fans, compressors, motors, heating elements and other devices. The LSR-0 is self-powered, that is, it draws its power from the wire being monitored so it does not require separate control power wiring. Features Wiring Diagram TYPICAL WIRING DIAGRAM FOR REFRIGERATION AND OIL FAILURE CONTROL Low cost proof relay TYPICAL WIRING DIAGRAM FOR BUILDING AUTOMATION TYPICAL WIRING DIAGRAM FOR BUILDING AUTOMATION Max Current Ratings Functional Characteristics Turn-on Threshold Turn-off Threshold Power Isolation Output Characteristics Relay Output Rating: Pilot Duty General Purpose General Characteristics Temperature Range Wire Size Hole Size Terminal Torque Safety Marks CSA, CSA-NRTL/C CE Dimensions Weight Mounting Method 135A continuous Fixed, 15A (max.)* 2.5A (min.) Induced from conductor 600VAC rms *Conductors may be looped for smaller motor applications. Caution: This product should not be relied upon solely for safety of life or safety applications. © 2016 Littelfuse Protection Relays & Controls www.littelfuse.com/lsr0