LSR-XXX Series - Load Sensor

Littelfuse Current Monitoring Relays Transducers
The LSR-XXX load sensors use current levels to determine feed rates, tool wear, loss of prime on pumps, mixer viscosity and all types of overload and underload conditions. They may also be used to stage pump motors, chillers and other machinery. These devices combine a current transformer (CT) with Form C (SPDT) relay contacts to switch alarm circuits, contactors or any resistive or inductive load. One simple screwdriver adjustment will calibrate the sensor for all single-phase or 3-phase applications up to 100hp.

Access specifications, certifications, check availability and order parts below

Catalog #Input
Voltage (V)
Output
Form
Termination TypeMounting MethodDimensionsWeight (lbs/g)Compare
LSR-115115VACSPDTTorque: 7 in.-lbs.; Wire: 12-24AWGFour #6 screws 3/4 in in length1.67 H x 2.30 W x 3.56 D (42.4 x 58.4 x 90.4 mm)0.4 lb. (6.4 oz. 181.44 g)
LSR-230230VACSPDTTorque: 7 in.-lbs.; Wire: 12-24AWGFour #6 screws 3/4 in in length1.67 H x 2.30 W x 3.56 D (42.4 x 58.4 x 90.4 mm)0.4 lb. (6.4 oz. 181.44 g)
LSR-2424VACSPDTTorque: 7 in.-lbs.; Wire: 12-24AWGFour #6 screws 3/4 in in length1.67 H x 2.30 W x 3.56 D (42.4 x 58.4 x 90.4 mm)0.4 lb. (6.4 oz. 181.44 g)