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A-9

Protection

Micrologic 2.0

Long time

Current setting (A)

Ir

= In x …

0.4 0.5 0.6 0.7 0.8 0.9 0.95 0.98 1

tripping between 1.05 and 1.20 x Ir

other ranges or disable by changing long-time rating plug

Time setting

t

r

(s)

0.5 1

2

4

8 12 16 20 24

Time delay (s)

accuracy: 0 to -30 % 1.5 x Ir

12.5 25 50 100 200 300 400 500 600

accuracy: 0 to -20 %

6 x Ir

0.7

(1)

1 2

4

8

12

16 20 24

accuracy: 0 to -20 % 7.2 x Ir

0.7

(2)

0.69 1.38 2.7

5.5

8.3 11 13.8 16.6

Thermal memory

20 minutes before and after tripping

(1)

0 to -40 % -

(2)

0 to -60 %

Instantaneous

Pick-up (A)

Isd

= Ir x …

1.5 2 2.5 3 4 5 6 8 10

accuracy: ±10 %

Time delay

max. resettable time: 20 ms; max break time: 80 ms

DB128031

0

I

t

I

r

tr

Isd

Protection

Micrologic 5.0 / 6.0

Long time

DB128032

Ir

tr

Isd

Ii

0

I

t

tsd

I

2

t off

I

2

t on

Current setting (A)

Ir

= In x …

0.4 0.5 0.6 0.7 0.8 0.9 0.95 0.98 1

Tripping between 1.05 and 1.20 x Ir

Other ranges or disable by changing long-time rating plug

Time setting

tr (s)

0.5 1 2 4 8 12 16 20 24

Time delay (s)

Accuracy: 0 to -30 % 1.5 x Ir 12.5 25 50 100 200 300 400 500 600

Accuracy: 0 to -20 % 6 x Ir

0.7

(1)

1 2 4 8 12 16 20 24

Accuracy: 0 to -20 % 7.2 x Ir 0.7

(2)

0.69 1.38 2.7 5.5 8.3 11 13.8 16.6

Thermal memory

20 minutes before and after tripping

(1)

0 to -40 % -

(2)

0 to -60 %

Short time

Pick-up (A)

Isd

= Ir x …

1.5 2 2.5 3 4 5 6 8 10

Accuracy: ±10 %

Time setting t

sd

(s)

Settings

I

2

t Off

0 0.1 0.2 0.3 0.4

I

2

t On -

0.1 0.2 0.3 0.4

Time delay (ms) at 10 x Ir

t

sd

(max resettable time)

20 80 140 230 350

(I

2

t Off or I

2

t On)

t

sd

(max break time)

80 140 200 320 500

Instantaneous

Pick-up (A)

Ii

= In x …

2 3 4 6 8 10 12 15 off

Accuracy: ±10 %

Time delay

Max resettable time: 20 ms

Max break time: 50 ms

Earth fault

Micrologic 6.0

DB128036

Pick-up (A)

Ig

= In x …

A B C D E F G H J

Accuracy: ±10 %

In

y

400 A

0.3 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1

400 A < In < 1250 A

0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1

In

u

1250 A

500 640 720 800 880 960 1040 1120 1200

Time setting t

g

(s)

Settings

I

2

t Off

0 0.1 0.2 0.3 0.4

I

2

t On -

0.1 0.2 0.3 0.4

Time delay (ms)

t

g

(max resettable time)

20 80 140 230 350

at In or 1200 A (I

2

t Off or I

2

t On)

t

g

(max break time)

80 140 200 320 500

Note:

all current-based protection functions require no auxiliary source.

The test / reset button resets maximeters, clears the tripping indication and tests the battery.