Littelfuse 234-P, 234-P Series, Single-Phase Pump Monitor, Voltage Sensing AC 230VAC, 1 Phase, Load range: 1 ⁄3 to 3 hp
FOR ALL ORDERS OUTSIDE CANADA, CUSTOMERS ARE RESPONSIBLE FOR ANY IMPORT DUTIES, TARIFFS, TAXES, AND CUSTOMS FEES THAT MAY APPLY TO THEIR ORDERS.
Couldn't load pickup availability
Use this text to encourage communication or promote sharing on social networks.
The PumpSaver® Plus Model 234-P protects single-phase pumps from dry-well, dead-head, rapid-cycle, jammed impellers, and over/undervoltage conditions. Typical applications include residential waterwells, commercial waterwells, irrigation wells, golf courses, and other sprinkler systems. The Model 234-P is designed to be mounted inside a Grundfos* control box** to protect 1 ⁄3 –3 hp, 2- or 3-wire, 230 V pumps. An infrared LED communicates directly with a hand-held diagnostic tool called the Informer (sold separately).
Operation
A calibration adjustment allows the 234-P to be calibrated to your specific pumping applications, reducing the possibility of false or nuisance tripping. A unique microcontroller-based voltage and current-sensing circuit constantly monitors the incoming power for fluctuations, overcurrent, and undercurrent. When an abnormality such as loss of suction is detected, the 234-P deactivates its output relay and directly disconnects the pump motor. The 234-P then begins its user-selectable restart delay (dry-well recovery) timer. When the timer counts to zero or power is removed and reapplied, the 234-P reactivates its output relay and turns the pump back on. By leaving the restart delay knob in the reset position, the 234-P will operate in manual reset mode.
Applications
• Residential waterwells
• Commercial waterwells
• Irrigation wells
• Golf courses
Pre-order 6-8 Weeks
Specifications
| Functional Specifications | |
| Adjustments/Settings | |
| Overcurrent | 125 % of calibration point |
| Underload (dry-well) | Adjustable (70 to 90 % of calibrated run power |
| Overvoltage | 265 V ac |
| Undervoltage | 190 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 | 230 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 | 3 hp @ 240 V ac (17 Amps max.) |
| General Characteristics | |
| Operating Temperature | -40 °C to 70 °C (-40 °F to 158 °F) |
| Maximum Input Power | 5 W (max.) |
| Weight | 14 oz. |
| Mounting Methods | Grundfos* Control Box |
| Standards Passed | Electrostatic Discharge (ESD) |