Key benefits
- Installs in the motor control cabinet, away from hazardous areas
- No need to cut pipes or use other invasive approaches
- Fast response time enabling rapid problem detection
- A direct metric of pump work performed
- View power requirements over time for predictive maintenance, energy management and pump motor sizing
- Two set points (high and low trip) with a Form C relay for each
- Built-in digital load display (% load, kW or HP) and 4–20 mA analogue output
- Trip delay and start-up timers to filter out nuisance trips
- Includes Range Finder Toroid and calibration
- UL rated, SIL-1 and SIL-2 capable
Protects against
- Dry running, loss of prime and cavitation
- Overloads such as a jammed impeller or bad bearings
- Jams, clogs and blockages
Supply and support in Europe, the Middle East and Africa
- Quoted, shipped and supported by Tetra Distribution from Sophia-Antipolis, France
- Stock items delivered within 8 days by UPS, other items within 4 weeks
- Two-year warranty; calibration certificates available on request
- Tell us your supply voltage, frequency and pump motor power in kW and we confirm the right model, and any current transformer, before you order
Frequently asked questions
Why does the PMP-25 measure power instead of current?
At light load a motor’s current barely changes, so a current relay struggles to see dry running or loss of prime. Power rises and falls with the work the pump is doing, so these faults show up clearly.
Which pumps can it protect?
Centrifugal, positive displacement, magnetic-drive and sealed pumps, among others. It mounts in the motor control cabinet and never touches the pumped fluid.
What motor sizes does it cover?
Up to about 37 kW (50 HP) directly through the supplied Range Finder Toroid, and larger motors with an optional current transformer. Tell us the motor power and we confirm the set-up.
Can it protect a pump on a variable frequency drive?
For VFD-driven pumps, Load Controls pairs the PMP-25V with a Universal Power Cell on the drive output. Ask us and we will specify the right combination.
