Eaton Power Xpert Release PXR 10 Manual page 6

1. Introduction to the Power Xpert® Release trip unit
Protection settings
Available protection styles
overload protection (l)
I Pickup
r
t Time delay @ 6 x I
r r
Time delay slope
Thermal memory
short circuit protection (s)
Enable/disable (OFF position)
I Pickup
sd
t Time delay flat
sd
Time delay I t @ 8 x I
2
r
Zone selective interlock with visual
indication
instantaneous protection (i)
I Pickup
i
Ground (earth) fault protection (G)
Enable/disable (OFF position)
I Pickup - trip
g
Pickup - alarm only
t Time delay flat
g
Time delay I t @1.0 x I
2
n
Alarm contact
Thermal memory
neutral protection
4th pole or external neutral trip
maintenance mode protection (aRms)
Maintenance mode with visual
indication
Pickup
Status contact
General
Cause-of-trip
High load alarm 1 Pickup
High load alarm 2 Pickup
High load alarm Contact
Temperature trip
notes:
Section 9 contains a detailed list of all available settings for each trip unit and breaker frame combination.
Light gray shaded settings are programmable through the USB with PXPM software.
1.1.1 Time current curves
Time current curves (TCC) for every Power Defense circuit breaker within the PXR family of
trip units are available at www.eaton.com/tcc.
2
PXR tRiP units foR PoweR Defense molDeD case ciRcuit bReakeRs MN012007EN June 2018 www.eaton.com
PXR 10 PXR 20
LI LSI
LSI LSIG,
LSI with ARMS
LSIG with ARMS
10 settings 10 settings
Fixed at 10 10 settings
I t I
2 2
Enable/disable Enable/disable
Yes Yes
6 settings 2.0 to 10 9 settings from 1.5
2 settings 0.15 or 0.30 7 settings from 0.05 to 0.50
0.30 3 settings 0.07, 0.15, 0.30
Not available Enable/disable
10 settings 10 settings
Enable/disable
6 settings from 0.2
3 settings 0.20, 0.50, 1.0
Not available 7 settings from 0.10, to 1.0
3 settings 0.07, 0.15, 0.30
Optional
Enable/disable
3 settings 60% 100% off 3 settings 60% 100% off
Not available Local OFF w/ remote enable -or-
local ON
5 settings 2.5, 4.0, 6.0, 8.0, 10
Optional
Stored in memory Stored in memory
Available through PXPM LED indication
85%
Not available 105%
Optional
105 °C / 220 °F 105 °C / 220 °F
t
PXR 20D and 25
LSI
LSIG,
LSI with ARMS
LSIG with ARMS
Variable
Variable from 0.50
I t, I t
2 4
Enable/disable
Yes
Variable from 1.5
Variable from 0.05 to 0.50
Variable from 0.07 to 0.30
Enable/disable
Variable from 2.0
Enable/disable
Variable from 0.20
Variable from 0.20
Variable from 0.10 to 1.0
Variable from 0.07 to 0.30
Configurable
Enable/disable
3 settings 60% 100% off
Local OFF w/ remote enable
-or- local ON
5 settings 2.5, 4.0, 6.0, 8.0, 10
Optional
Stored in memory
LED indication
Variable 50% to 120%
Configurable
105 °C / 220 °F
units
Amps
Seconds
x I
r
Seconds
x I
n
x I
n
Seconds
x I
r
x l
n
x I
r