Littelfuse 111P-ENCL, 111P Series, Single-Phase Pump Monitor, Voltage Sensing AC 115VAC, 1 Phase, 111P with NEMA3R enclosure

In stock
SKU: 111P-ENCL
Regular price $478.41
Rated voltage

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Description
The Littelfuse models 111P (115 volt, 1⁄3 to 1hp); 233P-1.5 (230 volt, 1⁄3 to 1.5hp); and 233P (230 volt, 1⁄3 to 3hp) are singlephase pump monitors used in a variety of applications to protect from dry-well, dead-head, jammed impeller, rapid-cycling,
overvoltage, and undervoltage conditions.oltage conditions.

Operation
A calibration adjustment allows the unit to be calibrated to your specific pumping applications, which reduces the possibility of false or nuisance tripping. A unique microcontroller-based voltage and current-sensing circuit constantly monitor the
incoming power for fluctuations, overcurrent, and undercurrent conditions. When an abnormality, such as loss of suction, is detected, the product deactivates its output relay and directly disconnects the pump motor. The relay then begins its
user-selectable restart delay (dry-well recovery) timer. When the timer counts to zero or power is removed and reapplied, the relay reactivates its output relay and turns the pump back on. The infrared LED communicates with a hand-held
diagnostics tool called the Informer* (sold separately). The Informer displays parameters including calibration points,trip points, run time and last faults.

Applications
• Pumps: submersible, centrifugal, circulating, cooling, environmental
• Waterwells: residential, commercial, irrigation
• Golf course systems
• Sprinkler systems

Specifications

Functional Specifications  
Adjustments/Settings
Overcurrent 125 % of calibration point
Underload (dry-well) Adjustable (70 to 90 % of calibrated run power
Overvoltage 132.5 V ac
Undervoltage 95 V ac
Number of restarts allowed in
a 60-sec. period (rapid-cycling)
4
Trip Delay Times Overcurrent    5 seconds
Dry-well          4 seconds
Restart Delay Times Over/Undervoltage        2 seconds
All other faults                Manual, 2–225 minutes
Input Characteristics
Supply Voltage 115 V ac
Load Range 1 ⁄3 – 1 hp
Frequency 50/60 Hz (Note: 50 Hz will increase all delay timers by 20 %)
Output Characteristics
Output Contact Rating-SPST 1hp@120VAC (16 amps max.)
General Characteristics
Operating Temperature -40 °C to 55 °C (-40 °F to 131 °F)
Maximum Input Power 5 W
Wire Gauge Solid or Stranded 10 - 22AWG
Terminal Torque 13 in.-lbs.
Dimensions H 73.66 mm (2.9”)
W 133.35 mm (5.25”)
D 73.99 mm (2.913”)
Weight 14 oz.
Mounting Methods #8 screws
Certification & Compliance cULus