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Motor amp ratings, Wire size, Motor amp ratings -3 wire size -3 – Gasboy 9800Q Series User Manual

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MDE-4340A Series 9800Q Pumps and Dispensers Installation/Operation Manual · January 2006

Page 5-3

Wiring

Motor Amp Ratings

The following chart shows the maximum running amperage that can be expected for each
pump motor, unless noted otherwise:

Models

115V/60Hz units

230V/60Hz units 230V/50Hz units

9852Q, 9852QTW2,9852QTW1, 9853Q,
9853QTW2, 9853QTW1M

10.0

5.0

6.0

9840Q (2 motors combined)

Not available

10 (See NOTES) 12.0 (See NOTES)

Note: These numbers do not account for the higher load upon startup, nor up to one

additional amp associated with other electrical components (lights, solenoid
valves, etc.).

Note: The 9852QTW2, 9853QTW2, and 9853QTW1M have one pump motor per side.
Note: The 9840Q model should use no less than a 20-Amp breaker to account for the

high current upon startup.

Wire Size

The table below shows the required AC wire size for suction and submersible pumps based on
the HP rating of the pump motor and the distance from the circuit breaker to the pump/remote
dispenser for both 115 and 230 volt units. Use this table as a guide for selecting the proper size
wire for the Control/Pump Motor Feed, Control/SubM Feed (Optional Drive), SubM Drive,
Neutral Feed, and Phase 2 Feed.

The AC wire size for the Micro Feed, Micro Neutral, Light Feed and Light Neutral should be
14 American Wire Gauge (AWG) for runs up to 300 feet (98m) from the breaker panel or 12
AWG for distances over 300 feet (98m).

The AC wire size for the Control/SubM Feed (Standard Drive), SubM Starter Drive, and
Neutral Feed of a remote dispenser should be 12 AWG. These control lines are used to power
the solenoid valves and the submersible starter relay (the submersible pump cannot be directly
powered from the Standard SubM Drive line).

If multiple units are powered from the same breaker through the same wires, you must
increase the gauge of the wires to handle the added load according to the distance from the
breaker panel and the HP rating (if applicable).

The AC wire size for the Reset Complete (Switch Detect)/Slow Flow, Fast Flow, and Slow/
Fast Satellite Return lines should be 14 AWG (when they are used).

The DC wire size for the Pulse Output lines must be 18 AWG (when they are used). Shielded
cable, as described in the Pulse Output or RS-485 Wiring section, allows pulser lines to run
with the AC wires.

The DC wire size for the RS-485 lines for connection to a Gasboy Fuel Management System
should be two twisted pair cables (when they are used). Refer to

“Pulse Output or RS-485

Wiring” on page 5-5

and the Installation Manual for the Gasboy Fuel Management System for

specific requirements.