Protection Relays Pump Controls and Liquid Level Controls 460-15-100-SLD Single-Channel Seal-Leak Detector Description The 460-15-100-SLD is a seal-leak detector to sense seal failures on submersible pumps. A microcontroller-based relay monitors the shaft seal of a submersible pump motor. A resistive probe is installed in the seal cavity. If water leaks into the pump, the resistance measured by the probe decreases. When the resistance drops below the sensitivity setpoint, the unit will trip and the relay contacts will change state. Output relay logic can be reversed by removing an external jumper. The unit will automatically reset when a fault is cleared. Features & Benefits FEATURES BENEFITS Unique probe Probes are protected from scale build up through protection logic pulsed DC signal between the probes Allows flexibility to be used in pump-up and Invertible relay logic pump-down applications LED status indicators Provides visual indication of the relay status 2 relay contacts Control independent loads on different circuits Wiring Diagram Specifications Input Characteristics Control Voltage 110/120VAC nominal Frequency 50/60Hz (Note: 50Hz will increase all delay timers by 20%) Functional Characteristics Sensitivity 4.7k-100k Probe Sense Voltage 5vdc pulsed Output Characteristics Output contact Rating (Two Form A - SPST) Pilot Duty 360VA 240VAC General Purpose 8A 240VAC General Characteristics Ambient Temperature Range Operating -40 to 70C (-40 to 158F) Storage -40 to 80C (-40 to 176F) Maximum Input Power 2 W Class of Protection IP20, NEMA 1 (finger safe) Relative Humidity 10-95%, non-condensing per IEC 68-2-3 Terminal Torque 4.5 in.-lbs. Wire AWG 12-20 AWG Standards Passed Electrostatic Discharge (ESD) IEC 61000-4-2, Level 3, 6kV contact, 8kV air Radio Frequency Immunity, Radiated 150MHz, 10 V/m Fast Transient Burst IEC 61000-4-4, Level 3, 3.5kV input power and controls 2016 Littelfuse Protection Relays & Controls Rev: 1-A-092916 wwwwww.littelfuse.com/46015100SLD.littelfuse.com/Protection Relays Pump Controls and Liquid Level Controls 460-15-100-SLD Surge IEC IEC 61000-4-5, Level 3, 4kV line-to-line Level 4, 4kV line-to-ground ANSI/IEEE C62.41 Surge and Ring Wave Compliance to a level of 6kV line-to-line Hi-Potential Test Meets UL508 (2 x rated V + 1000 V for 1 min.) Safety Marks UL UL508 (File E68520) CE IEC 60947 Enclosure Polycarbonate Dimensions H 88.9 mm (3.5) W 52.93 mm (2.08) D 59.69 mm (2.35) Weight 1 lb. (16 oz., 453.59 g) Mounting Method 35mm DIN rail or Surface Mount ( 6 or 8 screws) 2016 Littelfuse Protection Relays & Controls Rev: 1-A-092916 wwwwww.littelfuse.com/46015100SLD.littelfuse.com/