User`s guide

2-4
Unit Description
2.4. Back Panel Components - RPC-40L8A4 Series
As shown in Figure 2.4, the RPC-40L8A4 Series Back Panel includes the following:

PowerInput: Two 40 Amp DC input Buses that share a common chassis ground
line. The power input terminal block also includes two mounting brackets, which
are used to hold the protective cover (not shown).

SwitchedOutputCircuits-BusA: Four ten amp DC circuits in a Euro Style
output terminal fed by power input bus A. DC output voltages for RPC-40L8A4
series units are as follows:
• RPC-40L8A4-48 = ± 48 V DC, 10 Amps
• RPC-40L8A4-24 = + 24 V DC, 10 Amps
• RPC-40L8A4-12 = + 12 V DC, 10 Amps

OutputCircuitFuses-BusA: Four ten amp DC GMT fuses that protect the
circuits on Output Bus A. Ships with 10 Amp fuses; for custom fuses, please
contact WTI

SwitchedOutputCircuits-BusB: Four ten amp DC circuits in a Euro Style
output terminal fed by power input bus B. Voltages for each RPC-40L8A4 model
are described under item 2 above.

OutputCircuitFuses-BusB: Four ten amp DC GMT fuses that protect the
circuits on Output Bus B. Ships with 10 Amp fuses; for custom fuses, please
contact WTI

OptionalGroundingLugLocation: Mounting holes for optional grounding lug for
6 gauge ground wire. For more information, please contact WTI.

AlarmInputs: Four Euro style alarm inputs, which are designed for connection to
door open alarms or other dry contacts. Each alarm input supplies 0.4 Amps of
positive DC current at the same voltage that is used to power the unit (e.g., ± 48 V
DC units provide +48 V DC, +24 V DC units provide +24 V DC and +12 V DC units
provide +12 V DC.)
1
2
3
4 6
5
7
Figure 2.4: Back Panel (Model RPC-40L8A4 Shown)