Eaton Power Xpert PD Series, Руководство пользователя, Страница: 6 / 58

2
1. Introduction to the Power Xpert® Release trip unit
PXR tRiP units foR PoweR Defense molDeD case ciRcuit bReakeRs
MN012007EN June 2018 www.eaton.com
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
2
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 with visual
indication
Not available Enable/disable Enable/disable
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 Variable from 0.20 x I
n
Pickup - alarm only 3 settings 0.20, 0.50, 1.0 Variable from 0.20
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
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 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
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 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.