Eaton PRC-E Series User Manual

5
Field wiring termination
PRC-E Series Instruction Manual MN014003EN August 2015 www.eaton.com
Field wiring termination
The following topics discuss the necessary and optional
wiring connections between the PRC-E Series controllers,
BCB devices, and termination of the field devices, which
can consist of switches, occupancy sensors, and light level
sensors. The following discussion breaks the wiring into
logical topics such as power, circuit breaker control, and
field devices.
Figure 7. PRC-E Series Wiring
Power Supply
The PRC-E Series electronics uses 30 Vac/Vdc control
power. From this 30 V supply, all needed control voltages
are generated internally. The integrated PRC-E Series
controllers include a 30 Vac supply transformer that is
connected to the line-to-line voltage of the panelboard
(208/240/480 Vac). The PRC-E Series external controller
enclosures include a 30 Vac supply transformer that is
connected to the line to neutral of the panelboard (120/277
Vac). The connection to the controller transformer depends
on the type of enclosure and is discussed separately below.
Panelboard control chassis
The PRC-E Series Master Panelboard is shipped with an
integral controller, which is pre-wired to the correct supply
voltage for the panelboard rating.
There is no need for the personnel installing the panelboard
to supply connections to the power supply of the integral
controller chassis.
PRC-E
Controller
BCB
BCB
SLAN
BCB

Eaton PRC-E Series Specifications

General

Brand	Eaton
Model	PRC-E Series
Category	Control Unit
Language	English