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FUEL TRANSFER CONTROLLER

Part Number: 3350-FTC Fuel Transfer Controller

INSTALLATION AND OPERATING INSTRUCTIONS

The 3350-FTC Fuel Transfer Controller is designed to display the contents of the “Day” or “Consumption” Fuel 

Tank and control the pumping of fuel from the storage or “Bunker” tanks into that tank.

The 3350-FTC is housed in a standard 2” / 52mm diameter panel gauge instrument that contains a blue LED digital 

display, front panel “START” and “STOP” buttons and a 10 Amp changeover relay to control the Fuel Transfer 

Pump.

It has a standard NMEA2000® micro sized male plug to link to the NMEA2000® network and 3 x ¼” male spade 

terminals to link to the transfer pump wiring.

SAFETY WARNING

This instrument should only be installed by a person competent and experienced in working on electrical systems 

on boats.

BEFORE BEGINNING WORK THE BATTERY SHOULD BE DISCONNECTED TO AVOID THE RISK OF A SHORT CIRCUIT, 

A FIRE OR AN EXPLOSION.

Before drilling any holes to mount the unit or to run the cabling always make sure it is safe to do so.

The 3350-FTC Fuel Transfer Controller displays the “Day” or “Consumption” tank level as a % level and so it should 

be situated within sight of the helm position.

If there are multiple helm positions then multiple instruments can be installed. In this event the pump control 

wiring can be connected in parallel so that either instrument can control the filling of the Day tank.

The instrument is designed to be panel mounted in a 2” or 52mm clearance hole and requires clearance of at 

least 100mm behind the hole to allow for cable connections to be run without undue stress.

It is fixed to the panel by using a reversible rear mounting ring nut which can accommodate panels of up to 25mm 

thick. The front of the instrument is sealed to IP67 and when correctly mounted in a panel using the supplied 

gasket will provide an IP67 seal to the panel.

A mounting hole providing clearance for a 2” / 52mm diameter should be cut at the desired location. The 

instrument should be inserted from the front with it’s gasket. The mounting ring nut is attached at the rear and 

tightened sufficiently to hold the instrument securely.

THE UNIT ADDRESS SWITCH ON THE BACK OF THE INSTRUMENT MUST BE SET TO EXACTLY MATCH THE UNIT 

ADDRESS SWITCH ON THE “DAY” OR “CONSUMPTION” TANK LEVEL SENDER. IF THIS IS NOT DONE THEN THE UNIT 

CANNOT STOP A TRANSFER AND A FUEL SPILL COULD HAPPEN.

WIRING AND NETWORK

The male NMEA2000® micro plug should be attached to a Tee connector on the NMEA2000® network either 

directly or by using a NMEA2000® micro drop cable.

The wiring to the transfer pump should be as follows:

The power control cables on the back of the 3350-FTC should be connected to the “C” and “NO” terminals.

         INSTALLATION AND LOCATION

1

LED Indicator

Fuel Transferring

LED Indicator

Display

START

STOP

0

FEDC

B A 9 8 7 6 5

432

1

NC

C

NO

Unit Address Switch

3802 T - Adaptor

Fuel Transfer Controller

 NMEA2000® Network Backbone 

0

FED

C B A 9 8 7 6 5

432

1

NC

C

NO

Bunker Tank 

Day or 

Consumption Tank 

Fuel Transfer

Pump 

NC-Terminal

C-Terminal

NO-Terminal

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