Mechanical interface option – Gasboy TopKAT Fuel Management System Installation User Manual
Page 24
General Installation
Wire Size
Page 18
MDE-4319E TopKAT™ Fuel Management System Installation Manual · August 2008
Mechanical Interface Option
The AC wire size for a suction pump is dependent on the HP rating of the pump motor, the
voltage at which the pump will be operated (115/230), and the distance from the circuit
breaker panel to the pump. The chart below may be used as a guide to select the proper size
wire according to the specific installation requirements. The wire size for the Reset Complete
from the pump should be 14 AWG. All wires should be stranded.
The AC wire size for the control lines of a dispenser should be 12 AWG. These control lines
supply power for the reset mechanism, solenoid valve, and submersible starter relay (when the
submersible pump is not directly powered by the dispenser). The wire size for the submersible
pump power depends on the HP rating of the pump motor, the voltage at which it will be
operated (115/230), and the distance from the circuit breaker to the pump. Use the following
table as a guide to select the proper wire size according to specific installation requirements.
The wire size for the Reset Complete from the dispenser should be 14 AWG. All wires should
be stranded.
The DC wire size for the pulser must be 18 AWG (when they are used). Shielded cables, as
described in
allows pulser lines to run with AC wires.
The DC wire size for RS-422 lines should be 18 AWG and meet the specifications outlined in
on
on
to determine the wire size and type for
communication wiring of your specific application.
115 Volt Wire Gauge Sizes per Feet/Meters of Run (Note)
Motor H.P.
25’
7.6M
50’
15.2M
100’
30.5M
150’
45.7M
200’
61M
250’
76.2M
300’
91.4M
1/2
14
12
10
8
8
8
8
3/4
14
12
10
8
8
6
4
Note: For runs over 300 feet, use the relay at the motor location.
230 Volt Wire Gauge Sizes per Feet/Meters of Run (Note)
Motor H.P.
25’
7.6M
50’
15.2M
100’
30.5M
150’
45.7M
200’
61M
250’
76.2M
300’
91.4M
1/2
14
12
12
12
10
10
10
3/4
14
12
12
10
10
10
8
1-1/2
12
12
10
10
8
8
8
Note: For runs over 300 feet, use relays at the motor location.