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Overload Specifications
Overload classes
Trip Characteristics
Tripping threshold
Tripping time
Mechanical jam protection
SAMMS-LVX only
Loss of load protection
SAMMS-LVX only
Process current warning
SAMMS-LVX only
Accuracy
Phase unbalance protection
Equipment ground fault protection
Ambient temperature
Appendix A Technical Specifications
Overload classes 2 through 23 with one second increments.
Tripping time at 6 x I
= 95% of the overload class (±5%).
FLC
Tripping time at 1.5 x I
within two minutes for warm conditions for all classes.
FLC
(1.1 ± 0.05) x I
for motors with 1.00 service factor, and
FLC
(1.2 ± 0.05) x I
for motors with 1.15 service factor.
FLC
20 minutes @1.15 x I
for motors with service factor 1.
FLC
Sudden increase of the motor running current. Pick-up current adjustable from 120 to
400% in increments of 5% of I
Default value: 200% I
.
FLC
Sudden decrease of motor running current. Pick-up current adjustable from 20 to 95% in
increments of 5% of I
. Pick-up time 360 msec.
FLC
Default value: 50% I
.
FLC
Settings from 0 to 100% of I
± 5% of overload trip curve values.
± 2% repeat accuracy.
Response time after 1 second
Shifted trip threshold value to 0.9 x I
Response time after overload class in seconds.
Pick-up time: 360 msec.
Pick-up current:
Overload Relay Size
Pick-up Current
1A
1.5A
1B
1C
2A
2B
3
4
5
6
10A- I
I
is the value of I
for OLR#2 if F# is not set to OFF. If F3 is OFF, I
FLC
FLC
I
for OLR#1.
FLC
Motor ambient temperature adjustable 0 - 70°C in increments of 5°C.
Default value: 40°C.
. Pick-up time 360 msec.
FLC
.
FLC
at 40% phase unbalance.
FLC
Default
1.5A
2A- 5A
5A
2A- I
5A
FLC
2A- I
10A
FLC
2A- I
10A
FLC
2A- I
10A
FLC
2A- I
10A
FLC
5A- I
10A
FLC
20A
FLC
is the value of
FLC
43
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