DESCRIPTION

· The LSR-xxx Series load sensors utilize current levels to determine feed rates, tool wear, pump prime loss, mixer viscosity, and various overload/underload conditions.

· They can also stage pump motors, chillers, and other machinery.

· These devices integrate a current transformer (CT) with Form C (SPDT) relay contacts for switching alarm circuits, contactors, or resistive/inductive loads.

· Calibration for single-phase or 3-phase applications up to 100hp is achieved with a simple screwdriver adjustment.

FEATURES

· Monitors motor currents up to 100Hp.

· Fine adjustment via a 20-turn potentiometer.

· Status LEDs for operational feedback.

· Isolation up to 600VAC rms.

· Current adjustment range: 0.5-135A (typical 2-100A).

· Trip setpoint adjustable to ±1% range.

· Control power options: 24VAC, 115VAC, 230VAC.

· Max continuous current rating: 135A.

· Output contact rating (SPDT): 480VA @ 240VAC (Pilot Duty), 10A (General Purpose).

· Temperature range: -20° to 70°C (-4° to 158°F).

· Wire size: #12-24AWG.

· Hole size: 0.725” diameter.

· Terminal torque: 7 in.-lbs.

· Safety marks: CSA, CSA-NRTL/C (File #46510), CE, IEC 60947.

· Dimensions: 42.42 mm (H) x 58.42 mm (W) x 90.43 mm (D).

· Weight: 0.4 lb. (6.4 oz., 181.44 g).

· Mounting method: Four #6 screws, 3/4” in length.

APPLICATIONS

· Detects load loss and overload conditions.

· Suitable for monitoring and staging pump motors, chillers, and other machinery.

· Ideal for applications requiring precise current monitoring and control.