201-100-SLD - 201 Pump Controls Series

Littelfuse Pump Controls and Liquid Level Controls
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The model 201-100-SLD is an 8-pin plug-in style seal-leak detector to sense seal failures on submersible pumps. A microcontroller-based relay that 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. The unit will automatically reset when a fault is cleared.
Property (Mouseover for details) Value
Input Voltage (V) 110 to 120VAC nominal
Maximum Input Power 5W
Input AC Line Frequency (Hz) 50/60Hz
Output Form SPDT
Output Load Rating (VA) Pilot Duty: 480VA @ 240VAC; General Purpose: 10A @ 240VAC
Sense Voltage 5vdc pulsed (probe)
Sensitivity (Ohms) 4.7k - 100kΩ
Protection Class NEMA 1
Termination Type Torque (OT08-PC octal socket): 6 in-lbs; Wire: Stranded or solid 10-22AWG
Mounting Method DIN rail or surface mount (plug-in to OT08-PC socket)
Operating Temperature -40° to 70°C (-40° to 158°F)
Storage Temperature (F/C) -40° to 80°C (-40° to 176°F)
Humidity 10-95% non-condensing per IEC 68-2-3
Dimensions 1.75 in H x 2.38 in W x 4.13 in D (with socket) (44.5 x 60.3 x 104.8 mm)
Weight (lbs/g) 0.7 lb. (11.2 oz. 317.5 g)