Breaker And Fuse Ratings - KELVIN HUGHES X-band Installation Instructions Manual

POWER SUPPLY CONNECTIONS

The power supply must be connected to a dedicated breaker or a DC distribution panel.

The DC input must be connected to the POWER IN terminals.

Do NOT connect additional power switches to the cable providing the power feed to the power
supply.

All power connections between the E70352 and the power source must have appropriate fuse or
breaker protection (see below).

The SCREEN terminals must be connected to a tested and proven ground/ earth.

The system must NOT be connected to a positively-grounded power system.
POWER OUT (Positive) –
1 connect to the RED wire of the
cable.
POWER OUT (Negative) –
2 connect to the BLACK wire of the
cable.
SCREEN – connect to the bare
3
screen (drain) strands of the
cable.
SCREEN – connect to your
4
vessels RF ground system.
POWER IN (positive) – connect
to the positive terminal of the DC
5
distribution panel or battery
isolator switch.
POWER IN (negative) – connect
6
to the negative battery terminal.
7
Not used in this application
8 Not used in this application
9
Not used in this application
7.4

Breaker and fuse ratings

All power connections between the E70352 and its power source must be protected by a thermal
circuit breaker or fuse, fitted close to the power connection. The connection from the output of the
E70352 to the transceiver does not require a fuse or circuit breaker.
If you do not have a thermal circuit breaker or fuse in your power circuit (fitted to the DC distribution
panel, for example) you MUST fit an in-line breaker or fuse to the positive wire of the power cable.
The following table provides suitable ratings for battery isolator switches, circuit breakers and fuses.
Power supply Device
Isolator switch
12 volt Thermal breaker
Fuse
Isolator switch
24 volt Thermal breaker
Fuse
X-band 12kW Upmast Magnetron Transceiver
Chapter 7: CONNECTION DETAILS
HBK-2300-3 Issue 2
Page 27 of 40
12 kW scanner
30 amps (minimum rating)
15 amps
20 amps
15 amps (minimum rating)
8 amps
10 amps