Protection Relays Current Monitoring Relays and Transducers LSRX / LSRX-C SERIES Self-powered load sensor, low-cost proof relay Description The LSRX/LSRX-C Series are AC current sensors designed to energize the output contact whenever 4.5 Amps or greater is present. The LSRX/LSRX-C Series is used commonly as an AC current proof relay to indicate if a motor is operating. It can also be used to interlock fans, compressors and motors to indicate equipment status such as feed rates, tool wear, loss of prime on pumps, mixer viscosity and all types of current sensing conditions or to stage pump motors, chillers, or other machinery. This device combines a current transformer (CT), transducer and high current output relay together to switch alarm circuits, contactors and most resistive or inductive loads. The LSRX/ LSRX-C Series can perform the function of an auxiliary contact, yet has the advantages of universal application and isolation. Features & Benefits FEATURES BENEFITS Eliminates need for separate control voltage. Draws Self-powered power from wire being monitored Wiring Diagram Quick-connect terminals Saves time at installation LED indication Visual indication of relay status Built in current sensor Eliminates the need for a stand alone current will monitor up to transformer and also provides isolation between 200A loads the monitored and control circuits Accessories Informer IR Kit-36 (36 infrared adapter cable) Attaches to the face of the unit to provide remote diagnostics without opening the panel. CONTROL VOLTAGE Specifications Figure 1: Typical Wiring Diagram Input Characteristics Operating Current 5-200A Continuous Minimum Pull-in Current 4.5A (typical), 7.0A (max)* Power Induced from AC conductor Output Characteristics Relay Output Rating (SPST - Form A) Pilot Duty 480VA 240VAC, B300 General Purpose 5A 240VAC Ordering Information 5 Electrical Life 1x10 7 Mechanical Life 1x10 MODEL DESCRIPTION Maximum Conductor LSRX Fast-on terminal Diameter 0.7 in. LSRX-C Depluggable screw terminals Output Terminals LSRX 0.25 quick-connect fast-ons LSRX-OEM Fast-on terminals, 10 pack LSRX-C depluggable screw terminals Torque Rating 3.0 in.-lbs. 2016 Littelfuse Protection Relays & Controls Rev: 1-A-062716 www.littelfuse.com/lsrx-lsrxcProtection Relays Current Monitoring Relays and Transducers LSRX / LSRX-C SERIES General Characteristics Temperature Range: Operating -20 to 70C (-4 to 158F) Storage -40 to 80C (-40 to 176F) Hole Size 0.72 diameter Wire Size 12-26 AWG Output Relay Status Indicator LED Relative Humidity 10-95%, non-condensing per IEC 68-2-3 Standards Passed Electrostatic Discharge (ESD) IEC 61000-4-2, Level 2, 4kV contact, 4kV air Fast Transient Burst IEC 61000-4-4, Level 3, 2kV power, 1kV input/output Surge IEC 61000-4-5, Level 3, 2kV line-to-line 2kV line-to-ground Safety Marks UL UL508 Recognized (File E68520) CE IEC 60947 Dimensions H 68.58 mm (2.7) W 28.7 mm (1.13) D 63.5 mm (2.5) Weight 0.3 lb. (4.8 oz., 136.08 g) Mounting Method Surface Mount *Conductors may be looped for smaller motor applications. 2016 Littelfuse Protection Relays & Controls Rev: 1-A-062716 www.littelfuse.com/lsrx-lsrxc