Littelfuse 460-15-100-SLD Series, Single-Channel Seal-Leak Detector, DPST (2 Form A), 110–120VAC

In stock
SKU: 460-15-100-SLD
Regular price $183.83
Rated voltage
Contact code

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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.


Input Characteristics
Control Voltage 110/120VAC nominal
Frequency 50/60Hz (Note: 50Hz will increase all delay timers by 20%)
Functional Characteristics  
Sensitivity 4.7k-100kΩ
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 70°C (-40° to 158°F)
Storage        -40° to 80°C (-40° to 176°F)
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
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)