Eaton Magnum PXR - Terminal Block Extension Bracket; Door Escutcheon Installation; IP55 Waterproof Cover; Mechanical Interlock Systems

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PXR trip unit and communication modules
MAGNUM PXR PRODUCT GUIDE PA013006EN September 2022 www.eaton.com
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Table 6. PXR trip unit protection settings and features
Protection PXR 20 PXR 25
Overload protection (long
delay) (L) ANSI 51P
Slope I
2
t I
2
t, I
4
t, I
1
/
2
t, It
Long delay pickup x (I
n
) 0.4, 0.5, 0.6, 0.7, 0.75, 0.8, 0.9,
0.95, 0.98, 1.0
0.4 to 1.0 in steps of 0.01
Long delay time @ 6 x (I
r
) Seconds 0.5, 1, 2, 4, 7, 10, 12, 15, 20, 24 0.5 to 24 in steps of 0.1
Long delay thermal memory Enable/Disable a
High load alarm 1 % x (I
r
) OFF or 50% to < High Load Alarm 2 in steps of 1.0% a
High load alarm 2 % x (I
r
) OFF or > High Load Alarm 1 to 120% steps of 1.0% a
Short Circuit Protection
(S) ANSI 50TD
ZSI ANSI 68
Short Delay Slope Flat, I
2
t Flat, I
2
t
Short Delay Pickup x (I
r
) 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 10 1.5 to 10 in steps of 0.1
Short Delay Time I
2
t @ 8 x (I
r
) Seconds 0.1, 0.3, 0.4, 0.5 0.05 to 0.5 in steps of 0.01
Short Delay Time Flat Seconds 0.05, 0.1, 0.2, 0.3, 0.4, 0.5 0.05 to 0.5 in steps of 0.01
Short Delay Zone Interlock Enable/Disable a
Neutral Protection
ANSI 50N
ANSI 51N
4th Pole or
External Neutral
% x (I
r
) OFF, 60, 100 OFF, 60, 100
Instantaneous Protection
(I) ANSI 50P
Instantaneous Pickup x (I
n
) OFF, 2, 4, 5, 6, 7, 8, 10, 12, 15 OFF, 2 to 15 in steps of 0.1
Making Current Release
level determined by frame
A Y a
Ground (Earth) Fault
Protection (G) ANSI 51G
ZSI ANSI 68
Ground Protection Residual / Source Ground or Zero Sequence a
Ground Fault Pickup - Trip (I
g
) x (I
n
) 0.2, 0.4, 0.6, 0.8, 1.0 0.2 to 1.0 in steps of 0.01
Ground Fault Pickup - Alarm x (I
n
) OFF, 0.2, 0.4, 0.6, 1.0 OFF, 0.2 to 1.0 in steps of 0.01
Ground Fault Delay I
2
t @ 0.625 x (I
n
) Seconds 0.1, 0.2, 0.3, 0.5, 1.0 0.1 to 1 in steps of 0.01
Ground Fault Delay Flat Seconds 0.05, 0.2, 0.3, 0.5, 1.0 0.05 to 1 in steps of 0.01
Ground Fault Zone Interlock Enabled with Ground Fault Pickup a
Ground Fault Thermal Memory Enable/Disable a
Ground Fault Pre-alarm % 50 to 100 of Ig in steps of 1.0 a
Maintenance Mode Protection
(ARMS) (A) ANSI 50
Switch Positions ON or Remote LED lights when enabled a
Maintenance Mode Pickup x (I
n
) 1.5, 2.5, 4.0, 6.0, 8.0, 10.0
Relay Contact for Remote Indication of Mode Y a
a
Description applies to both the PXR 20 and PXR 25.