Eaton NEMA 1, Instruction Booklet

Page: 6 / 12

6
Instruction Booklet IB157001EN
Effective May 2015
Fixed capacitor banks (Unipump, Unipak, and Unipak
detuned filter) low voltage (600 V and below), NEMA 1
NEMA 3R (outdoor) enclosed versions
EATON
www.eaton.com
F-c
Cleared fuse light
Cleared fuse light
Cleared fuse light
A2
Incoming
1 A
F-2
1 A
F-1
270 k
Ts-1
Ts-2
Capacitor enclosure
Overtemperature light
Customer incoming
conductor connection
(90 °C copper
conductor cables
at 75 °C ampacity)
Customer
interconnect
Three-phase internally
delta connected capacitor
A1
B2 B1
C2 C1
A
B
C
Reactor enclosure
F-c
F-c
Three-phase
reactor
Customer
interconnect
terminals
provided with
Unipak detuned filter
Ground
terminal
Ground
terminal
Bonding
conductor
Connection conductors
and conduit provided
by customer. Same size
as incoming conductors.
Customer
termination
terminals
provided.
Reactor thermal switches
(embedded in windings)
(normally closed)
Note: 6-inch minimum clearance on reactor top and sides for ventilation. 12-inch clearance
is preferred. See equipment drawings for Unipak detuned filter wire lug sizes.
Figure 1. Connection schematic
Motor
Motor
feed
Motor
starter
Fused
safety
switch or
breaker
Install
at location:
Capacitor
C
Capacitor
B
Capacitor
A
Thermal
overload
B A C
Figure 2. Capacitor connection locations