LSR-230 - LSR-XXX Series

Series: LSR-XXX Questions? Contact Littelfuse Support
Littelfuse Current Monitoring Relays Transducers
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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.
Property (Mouseover for details) Value
Input Voltage (V) 230VAC
Input Current Range (A) 0.5 - 135A continuous
Output Form SPDT
Output Load Rating (VA) Pilot Duty: 480VA @ 240VAC; General Purpose: 10A
Sensor Hole Size 0.725 in diameter
Indication Output status LED; Relay status LED
Isolation Voltage (V) 600VAC rms
Termination Type Torque: 7 in.-lbs.; Wire: 12-24AWG
Mounting Method Four #6 screws 3/4 in in length
Operating Temperature -20° to 70°C (-4° to 158°F)
Dimensions 1.67 H x 2.30 W x 3.56 D (42.4 x 58.4 x 90.4 mm)
Weight (lbs/g) 0.4 lb. (6.4 oz. 181.44 g)