Table 14: Power outputs
Max system voltage 250 V ac/dc
Continuous carry 5 A
Make and carry for 0.5 s 30 A
Make and carry for 3 s 15 A
Breaking capacity when control circuit time constant
L/R <40 ms, at 48/110/220 V dc
5 A/3 A/1 A
Minimum contact load 100 mA, 24 V ac/dc (2.4 VA)
TCS (Trip Circuit
Supervision)
Control voltage range 20…265 V ac/dc
Current drain through the
supervision circuit
approx. 1.5 mA (0.99…1.72 mA)
Minimum voltage
(threshold) over a contact
20 V ac/dc (15…20 V)
Transformer Terminal RET 541, RET 543, RET 545
1MRS755543
34
Table 15: Environmental conditions
Specified service temperature range -10…+55C
Transport and storage temperature range -40…+70C
Degree of protection by enclosure Front side, flush-mounted IP 54
Rear side, connection terminals IP 20
Dry heat test according to IEC 60068-2-2
Dry cold test according to IEC 60068-2-1
Damp heat test, cyclic according to IEC 60068-2-30
r.h. = 95%, T = 20…55C
Storage temperature tests according to IEC 60068-2-48
Table 16: Standard tests
Insulation tests Dielectric test
IEC 60255-5
Test voltage 2 kV, 50 Hz, 1 min.
Impulse voltage test
IEC 60255-5
Test voltage 5 kV, unipolar impulses,
waveform 1.2/50 s,
source energy 0.5 J
Insulation resistance
measurements
IEC 60255-5
Insulation resistance > 100 M, 500 V dc
Mechanical tests Vibration tests (sinusoidal) IEC 60255-21-1, class I
Shock and bump test IEC 60255-21-2, class I
Seismic test IEC 60255-21-3, class 2
Table 17: Electromagnetic compatibility tests
The EMC immunity test level fulfills the requirements listed below
1 MHz burst disturbance test, class
III, IEC 60255-22-1
common mode 2.5 kV
differential mode 1.0 kV
Electrostatic discharge test, class
III, IEC 61000-4-2 and
IEC 60255-22-2
for contact discharge 6 kV
for air discharge 8 kV
Radio frequency interference test conducted, common mode
IEC 61000-4-6
10 V (rms), f = 150 kHz…80 MHz
radiated, amplitude-modulated
IEC 61000-4-3
10 V/m (rms),
f = 80…1000 MHz
radiated, pulse-modulated
ENV 50204
10 V/m, f = 900 MHz
radiated, test with a portable
transmitter
IEC 60255-22-3, method C
f = 77.2 MHz, P = 6 W;
f = 172.25 MHz, P = 5 W
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