22
EATON
www.eaton.com
Protection Characteristics of PXR4.1 Intelligent Controller
PXR4.1A
PXR4.1P
Ordering code
D
F
Display type
LED display
LED display
Long delay time protection (L)
Long delay time set point
Tolerance: 10%
(I
r
) × I
n
0.4~1+OFF (Step is 1 or 2A)
Curve type
I²T curve
Long delay time
Tolerance: 15%
t
r
(6 × I
r
)
0.5, 1, 1.9, 3.8, 7.5, 15, 22.5, 30, 37.5, 45, 52.5, 60
Long delay time
Tolerance: 15%
t
r
(1.5 × I
r
)
8, 15, 30, 60, 120, 240, 360, 480, 600, 720, 840, 960
Long delay time
Tolerance: 15%
t
r
(7.2 × I
r
)
0.35, 0.65, 1.3, 2.6, 5.21, 10.42, 15.63, 20.83, 26.04, 31.25, 36.46, 41.67
Short delay time protection (S)
Short delay time set point
Tolerance: 10%
I
sd
× I
r
1.5~15+OFF (Step is 1 or 2A)
Curve type
I²T curve
Short delay time (t
sd
)
Tolerance: 15%
Fixed time
0.1, 0.2, 0.3, 0.4+OFF
Short delay time (t
sd
)
Tolerance: 15%
Inverse time I²t/10 (6 × I
r
)
0.05, 0.1, 0.19, 0.38, 0.75, 1.5, 2.25, 3, 3.75, 4.5, 5.25, 6
Short delay time (t
sd
)
Tolerance: 15%
Inverse time I²t/10 (1.5 × I
r
)
0.8, 1.5, 3, 6, 12, 21, 36, 48, 60, 72, 84, 96
Short delay time (t
sd
)
Tolerance: 15%
Inverse time I²t/10 (7.2 × I
r
)
0.035, 0.065, 0.13, 0.26, 0.521, 1.042, 1.563, 2.083, 2.604, 3.125, 3.646, 4.167
Instantaneous protection (I)
Instantaneous protection set point
Tolerance: 15%
I
i
× I
n
1I
n
-15I
n
+OFF (Step is 1 or 2A)
Ground fault protection (G)
Ground fault alarm set point (A)
Tolerance: 10%
× I
n
0.2~1+OFF (Step is 1 or 2A)
Ground fault alarm set point (A)
Tolerance: 10%
I
g
× I
n
0.2~1+OFF (Step is 1 or 2A)
Ground fault delay (tg)
Tolerance: 10%,
Inherent tolerance: 400ms
I
tg
0.1~0.5s (Step is 0.1s)
Ground fault delay (t
g
)
t = I²[email protected] (t
g
)
Tolerance: 10%
0.1~0.5s (Step is 0.1s)
Under-voltage protection
1)
Under-voltage protection set point
Tolerance: 10%
N/A
10%U
n
~70%U
n
+OFF (Step is 1V)
Under-voltage protection delay time
Tolerance: 10%
Inherent tolerance: 400ms
N/A
0.2~60s (Step is 0.1 or 1s)
Over-voltage protection
1)
Over-voltage protection set point
Tolerance: 10%
N/A
110%U
n
~130%U
n
+OFF (Step is 1V)
Over-voltage protection delay time
Tolerance: 10%
Inherent tolerance: 400ms
N/A
0.2~60s (Step is 0.1 or 1s)
1)
Voltage protection of Phase A, B, C and N is connected to terminals with the maximum voltage of 400V. When above 400V, a voltage transformer must be equipped by customers
themselves
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Effective September 2022
IZM6 Series Air Circuit Breaker
Operating Instruction Leafl et