Eaton PXR10 - 3.5 Time;Current Characteristics; 3.6 Voltage Tap of the Neutral Conductor on the PXR25

3 Protection and measurement functions
3.1 Trip unit functions
PXR Electronic trip unit 01/21 MN012005EN www.eaton.com 19
3 Protection and measurement functions
3.1 Trip unit functions
The following table lists the available functions for the various PXR trip unit
types.
Table 9: Overview of the available functions
3.2 Protection functions
Table 10: Protection functions
PXR
version
Release
Overload protection Short-time delayed short-circuit protection Instantaneous short-circuit protection Ground-fault protection ARMS maintenance mode ZSI zone-selective interlocking Current measurement Data collection incl. Class 1 energy metering USB interface Communications enabled Status LED Overload LED / indicator Trip-reason indicator Interface module Relay module (optional)
PXR10 -AX ✓ – ✓ – – – ✓ – ✓ – ✓ ✓ – – –
PXR20 -MX ✓ – ✓ – – – ✓ – ✓ ✓ ✓ ✓ ✓
opti
onal
✓
-VX ✓ ✓ ✓ – – – ✓ – ✓ ✓ ✓ ✓ ✓
opti
onal
✓
-VX…-T ✓ ✓ ✓ ✓ – – ✓ – ✓ ✓ ✓ ✓ ✓
opti
onal
✓
PXR25 -PX ✓ ✓ ✓ – – – ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
-PX…-TZ(TAZ) ✓ ✓ ✓ ✓ ✓
1)
✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
-PMX ✓ – ✓ – – – ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
1) NZM3 and NZM4 only
Trip unit
Release
I
r
t
r
I
sd
t
sd
I
i
I
g
t
g
PXR10 -AX(-NA) ✓ – – – ✓ – –
PXR20 -MX(-NA) ✓ ✓ – – ✓ – –
-VX(-NA) ✓ ✓ ✓ ✓ ✓ – –
-VX…-T(-NA) ✓ ✓ ✓ ✓ ✓ ✓ ✓
PXR25
-PX(-NA) ✓ ✓ ✓ ✓ ✓ – –
-PXM(-NA) ✓ ✓ – – ✓ – –
-PX...-TZ(TAZ)(-NA) ✓ ✓ ✓ ✓ ✓ ✓ ✓