7PV datasheet(79/114 Pages) ETC2

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Monitoring Relays

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Siemens LV 1 T · 2006

3UG Monitoring Relays for Electrical and Additional Measurements

Insulation monitoring

for ungrounded AC networks

■Technical specifications

■Dimensional drawings

3UG3 081

Control circuits

Operating range of the control supply voltage

-15 % ... +10 %

Rated power

24 ... 240 V AC/DC

VA/W

8/2

110 ... 130 V AC

220 ... 240 V AC

Frequency of the rated control supply voltage

50 ... 60

Measurement circuits L/PE/ground

•Operating value

1 ... 110

• Minimum internal resistance for AC

100

• Minimum internal resistance for DC

100

• DC measurement voltage

30 DC

• Insulation voltage

415 AC

• Reset/test function terminals (max. 10 m)

Y1-Y2

• Delay time in case of response

Output relay

1 CO contact,

open-circuit principle

General data

Rated insulation voltage Ui

between supply, measurement,

and output circuit

400 acc. to IEC 60947-1

Overvoltage category

acc. to IEC 664

III

Degree of pollution

acc. to IEC 664

Impulse withstand voltage Uimp

acc. to VDE 0435, Part 303

Degree of protection

acc. to EN 60529

IP50 enclosure, IP20 terminals

Shock resistance

acc. to IEC 60068 Part 2-27

g/ms

Vibration resistance

acc. to IEC 60068-2-6

Hz/mm 10-55/0.35

Permissible ambient temperature

• During operation

°C

-25 ... 65

• During storage

°C

-40 ... 85

Permissible mounting position

Any

Conductor cross-section

Solid

mm2

2 x 0.75 ... 2.5

Finely stranded with end sleeve

mm2

2 x 0.75 ... 2.5

100

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