75
6 Annex
6.1.8 Electrical data
Voltage supply AC 110 to 240 V +10/-15 %, 48 to 63 Hz or
AC/DC 20 to 30 V, 48 to 63 Hz (not in conjunction with extra code 970)
Electrical safety According to DIN EN 61010-1
Overvoltage category II up to 300 V mains voltage, pollution degree 2
Protection rating I with internal isolation from SELV
Power consumption
AC 110 to 240 V < 45 VA
AC/DC 20 to 30 V < 30 VA
Data backup Internal flash memory
Data buffering Battery (operating life > 7 years); additionally, storage capacitor for buffering
during battery change (buffer time approx. 6 minutes)
Clock Battery-buffered real-time clock
Electrical connection On the back via push-in spring-cage terminals
Conductor cross section At plug connector 4 and 5 (voltage supply and relay)
Wire or strand without ferrule Min. 0.2 mm
2
, max. 2.5 mm
2
Strand with ferrule Min. 0.25 mm
2
, max. 2.5 mm
2
2 × strand with twin ferrule
with plastic collar
Min. 0.5 mm
2
, max. 1.5 mm
2
(both strands with identical cross section)
Stripping length 10 mm
Conductor cross section At plug connector 6 to 15 (inputs and outputs)
Wire or strand without ferrule Min. 0.14 mm
2
, max. 1.5 mm
2
Strand with ferrule Without plastic collar: min. 0.25 mm
2
, max. 1.5 mm
2
With plastic collar: min. 0.25 mm
2
, max. 0.5 mm
2
Stripping length 9 mm
Voltage supply influence < 0.1 % of the measuring range
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