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Medium voltage electric fire pump controllers are designed to start an electric motor driven fire pump. It can either
start the fire pump manually through the local start pushbutton or automatically through the sensing of a pressure
drop in the sprinkler system. The fire pump controller is supplied with a pressure transducer. The fire pump can be
stopped manually with the local stop pushbutton or automatically after the expiration of a field programmable timer.
In both cases, stopping is only allowed if all starting causes have disappeared.
Types of Electric Fire Pump Controllers
FIRE PUMP CATALOG NUMBER
MODEL No. EXAMPLE: MPA - 6600 / 50 / 3 / 60
Model Prefix: MPA
Voltage: 6600 V
HP Rating: 50 HP
Phase: 3
Frequency: 60 Hz
MODEL MPA:
This model is intended to be used where the local utility or the capacity of the power source permits across-
the-line starting.
Full voltage is applied to the motor as soon as the controller receives a start command.
Methods of Starting/Stopping
The controllers are available as combination automatic / non-automatic with provision for manual or automatic
shutdown (an automatic shutdown is only possible after an automatic start).
AUTOMATIC START
The controller will start automatically on low pressure detection by the pressure sensor when the pressure drops
below the cut-in threshold.
MANUAL START
The motor can be started by pressing the START push button, regardless of the system pressure.
REMOTE MANUAL START
The motor can be started from a remote location by momentarily closing a contact of a manual push button.
REMOTE AUTOMATIC START, DELUGE VALVE START
The motor can be started from a remote location by momentarily opening a contact connected to an automatic
device.
EMERGENCY START
The motor can be started manually by using the emergency handle. This handle can be maintained in a closed
position.
Important: to avoid damaging the contactor, it is recommended to start the motor in this manner:
1) Shutdown the main power by using the main disconnect means,
2) Pull the emergency handle and lock it in closed position,
3) Turn the power back on by using the main disconnect means.
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