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L0520
RH0170.001
17/24
ABB SACE
SACE PR212
2.1. Technical characteristics
2.1.1. Electrical characteristics
Effective operation :
after a maximum of 5 s from turning on the
power supply.
MTBF (MIL-HDBK-217E) foreseen:
15 years at 45°C
2.1.1.1. Auxiliary power supply
Since an earth-insulated Vaux is required, it is necessary to use galvanically separated converters
in accordance with the IEC 60950 (UL1950) Standards or their equivalent [which guarantee a
common mode current or leakage current (see IEC 478/1, CEI 22/3) not exceeding 3.5mA], IEC
60364-41 and CEI 64-8.
2.1.2. Mechanical characteristics
Enclosure:
Metallic (1mm sheet)
Degree of protection:
IP20
Overall dimensions with connectors:
100 x 45 x 120 mm (h x l x d)
Maximum weight including connectors:
450 gr.
2.1.3.
Ambient characteristics
Ambient operating temperature:
-5 °C ... +70 °C
Storage temperature
-40 °C ... +90 °C
2.1.4.
Communication bus
2.1.4.1. Internal bus
Communication bus reserved for ABB SACE.
2.1.4.2. External bus
External bus (LON
®
) 2-Wire Twisted Pair, 78 kbit/s, connection to differential bus.