2
1. Introduction to the Power Xpert® Release trip unit
PXR tRiP units foR PoweR Defense molDeD case ciRcuit bReakeRs
MN012007EN March 2019 www.eaton.com
line protection settings
PXR 10
PXR 20
PXR 20D and 25
units
Available protection styles
LI
LSI
LSI
LSIG,
LSI with ARMS
LSIG with ARMS
LSI
LSIG,
LSI with ARMS
LSIG with ARMS
overload protection (l)
I
r
Pickup
10 settings
10 settings
Variable
Amps
t
r
Time delay @ 6 x I
r
Fixed at 10
10 settings
Variable from 0.50
Seconds
Time delay slope
I
2
t, I
4
t
I
2
t, I
4
t
I
2
t, I
4
t
Thermal memory
Enable/disable
Enable/disable
Enable/disable
short circuit protection (s)
Enable/disable (OFF position)
Yes
Yes
Yes
I
sd
Pickup
6 settings 2.0 to 10
9 settings from 1.5
Variable from 1.5
x I
r
t
sd
Time delay flat
2 settings 0.15 or 0.30
7 settings from 0.05 to 0.50
Variable from 0.05 to 0.50
Seconds
Time delay I
2
t @ 8 x I
r
0.30
3 settings 0.07, 0.15, 0.30
Variable from 0.07 to 0.30
Zone selective interlock
Not available
Enable/disable
Enable/disable with visual
indication
instantaneous protection (i)
I
i
Pickup
10 settings
10 settings
Variable from 2.0
x I
n
Ground (earth) fault protection (G)
Enable/disable (OFF position)
Not available
Enable/disable
Enable/disable
I
g
Pickup - trip
6 settings from 0.2 to 1.0 (up to
1200A)
Variable from 0.2 to 1.0 (up to
1200A)
x I
n
Pickup - alarm only
3 settings 0.20, 0.50, 1.0
Variable from 0.2 to 1.0 (up to
1200A)
t
g
Time delay flat
7 settings from 0.10, to 1.0
Variable from 0.10 to 1.0
Seconds
Time delay I
2
t @1.0 x I
n
3 settings 0.07, 0.15, 0.30
Variable from 0.07 to 0.30
Alarm contact
Optional / configurable
Included / configurable
Thermal memory
Enable/disable
Enable/disable
neutral protection
4th pole or external neutral trip
3 settings 60% 100% off
3 settings 60% 100% off
3 settings 60% 100% off
x I
r
maintenance mode protection (aRms)
Maintenance mode with visual
indication
Not available
Local OFF w/ remote enable -or-
local ON
Local OFF w/ remote enable
-or- local ON
Pickup
5 settings 2.5, 4.0, 6.0, 8.0, 10
5 settings 2.5, 4.0, 6.0, 8.0, 10
x l
n
Status contact
Optional / configurable
Optional
General
Cause-of-trip
Stored in memory
Stored in memory
Stored in memory
Available through PXPM
LED indication
LED indication
High load alarm 1 Pickup
Not available
85%
Variable 50% to 120%
x I
r
High load alarm 2 Pickup
105%
High load alarm Contact
Optional / configurable
Configurable
Temperature trip
105 °C / 220 °F
105 °C / 220 °F
105 °C / 220 °F
notes:
Section
9 contains a detailed list of all available settings for each trip unit and breaker frame combination.
Light gray shaded settings are only configurable through the USB with PXPM software.
