NCE SB3A Upgrade Manual - page 3
Expanded Use of NCE Products
Products Shown Above:
SB5 -.................................5240031
DB5 -.................................5240032
PowerCab -.......................5240025
UTP Panel -.......................5240207
EB1 Circuit Breakers.........5240225
RB02 Radio Base Station. 5240023
Cab06pr Radio Throttle.....5240044
P514
UTP
DB5 Booster
Smart Booster - SB5
P514
EB1
EB1
STATUS
STATUS
Power
Cab
EB1
EB1
Control Bus
Cable
Cab Bus
Cable
Cab Bus
Cable
Cab Bus
Cable
Track Bus
Wires
Track Bus
Wires
Ground Wire
RB02
Page 6
Page 3
protection devices and circuit breakers such as the CP6 and the EB1. This provides a
means to divide your layout into separate power “districts.” A short or derailment in one
district will only affect that section of track without shutting down other sections of the
layout.
Connecting Extra Boosters:
The Control Bus output connector is used to connect additional boosters to the SB5. See
diagram on page 6.
Layout Wiring:
For runs up to about 25 feet (8 meters), we recommend #16 gauge wire as a layout “track
power bus”. If you need more than 25 feet #14 gauge is a better choice. For power drops
from the track to the bus #20, #22 or #24 gauge wire is sufficient if you keep the length to
18 inches or less. With code 83 or larger rail keep your drops 6 feet (2 meters) or less
apart. Code 70 and smaller rail should be about every 3 feet (1 meter).
While it is not absolutely required, we suggest twisting the track power bus wires together
(2 to 4 turns per foot). Don’t bother twisting short power runs or power drops.
Electrical Specifications:
P514 Power Supply (included) Replacement part number 5240238
Maximum continuous track current (with cooling) 5.1 Amps
Factory track voltage setting: 12 or 13.8 Volts. Selectable by switch on P514
STATUS
Layout
UTP Panel
ProCab
NCE
PROCAB
RB02
Up to 4 Throttles and
Radio Base Station,
Etc.
Optional Expansion