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Protection Stages
Table 10.13 – Casing
Degree of protection (IEC 60529)
Dimensions (W x H x D)
Material
Weight
Colour code
Table 10.14 – Package
Dimensions (W x H x D)
Weight (Terminal, Package and
Manual)
Non-directional Current Protection
Table 10.15 – Overcurrent stage I> (50/51)
Pick-up current
Definite time function:
- Operating time
IDMT function:
- Delay curve family
- Curve type
- Time multiplier k
Start time
Reset time
Retardation time
Reset ratio
Transient over-reach, any τ
Inaccuracy:
- Starting
- Operating time at definite time function
- Operating time at IDMT function
EI = Extremely Inverse, NI = Normal Inverse, VI = Very Inverse, LTI = Long Time Inverse,
MI= Moderately Inverse
This is the instantaneous time i.e. the minimum total operational time including the fault
detection time and operation time of the trip contacts.
Technical Data
IP20
208 x 155 x 225 mm
1 mm steel plate
4.2 kg
RAL 7032 (Casing) / RAL 7035 (Back plate)
215 x 160 x 275 mm
5.2 kg
0.10 – 5.00 x I
MODE
DT
0.08
– 300.00 s (step 0.02 s)
(DT), IEC, IEEE, RI Prg
EI, VI, NI, LTI, MI...depends on the family
0.05 – 20.0, except
0.50 – 20.0 for RXIDG, IEEE and IEEE2
Typically 60 ms
<95 ms
<50 ms
0.97
<10 %
±3% of the set value
±1% or ±30 ms
±5% or at least ±30 ms
857-UM001A-EN-P – July 2009
10-5
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