Thermal Overload Protection (49); Thermal Overload Protection - Siemens Reyrolle 7SR45 Argus Device Manual
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4.9
Thermal Overload Protection (49)
Element
Setting range
Heating time constant (TauH)
Cooling time constant (TauC)
Capacity alarm
Initial level
Reset level
Overload trip operate time (t
Operating time tolerance
Operating time tolerance Frequency variation
(47.5 Hz to 52.5 Hz)
(57 Hz to 63 Hz)
Operating time tolerance with Harmonics
10 % of 3
rd
Harmonics
25 % of 5
th
Harmonics
15 % of 7
th
Harmonics
Inhibited by
Reyrolle, 7SR45, Device Manual
C53000-G7040-C101-2, Edition 09.2020
Thermal overload
0.2 ⋅ I
Δ 0.1 ⋅ I
1.0 min to 300.0 min
Δ 0.5 m
1.0 ⋅ TauH to 6.0 ⋅ TauH
Δ 0.5 ⋅ TauH
50 % to 100 %
Δ 1 %
0 % to 40 %
Δ 5 %
≥ 95 % I
)
op
± 5 % of t
± 10 % of t
± 15 % of t
Binary input
4.9 Thermal Overload Protection (49)
to 1.5 ⋅ I
rated
rated
rated
op
or ± 10 s
op
or ± 50 s
op
or ± 50 s
op
Technical Data
87
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