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A DVAC® 3 8 K V I N STA LL ATI ON , OPE R ATI ON A N D M A I NTE N A NCE M A N UA L
—
Accessories
Auxiliary contacts
The following are available using the standard
group of 10 auxiliary contacts and the maximum
number of electrical accessories.
For withdrawable circuit breakers:
• Nine closing contacts “a” for signaling circuit
breaker open and eight opening contacts “b”
for signaling circuit breaker closed
Fixed-mountedcircuit breakers are available with a
choice of two finishing accessories (to be specified
when ordering):
• Non-wired auxiliary contacts
• Auxiliary contacts pre-wired to the terminal box
Following are ratings of the auxiliary contacts
internal to the ADVAC® 38 kV circuit breaker.
All contacts are high speed rotary wiping contacts
that actuate directly off the main operating shaft
of the breaker.
Auxiliary contacts -BGB1 conform to the following
standards, regulations and directives:
• IEC 62271-100
• IEEE C37.54
• EN 61373 cat.1 class B impact and vibration test
• Germanish Loyd regulation vibrations envisaged
by the shipping registers
• UL 508
• EN 60947 (DC-21A DC-22A DC-23A AC-21A)
• RoHS directive
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General characteristics
Insulation voltage to
standard VDE 0110, Group C
660 V AC
800 V DC
Rated voltage
24 V to 660 V
Test voltage
2 kV for 1 min.
Maximum rated current
10 A, 50/60 Hz
Breaking capacity
Class 1 (IEC 62271-1)
Number of contacts
5
Groups of contacts
10 / 16 / 20
Contact travel
90˚
Actuating force
0.66 Nm
Resistance
<6.5 m
Ω
Storage temperature
-30 ˚C to +120 ˚C
Operating temperature
-20 ˚C to + 70 ˚C
(-30 °C ref. ANSI 37.09)
Contact over temperature
10 K
Mechanical life
30,000 mechanical operations
Protection class
IP20
Cable section
1 mm²
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Electrical characteristics (according to IEC 60947)
Rated current Un
Breaking capacity
(10,000 interruptions)
220 V AC
Cos
φ
= 0.70
20 A
220 V DC
Cos
φ
= 0.45
10 A
24 V DC
1 ms
12 A
15 ms
9 A
50 ms
6 A
60 V DC
1 ms
10 A
15 ms
6 A
50 ms
4.6 A
110 V DC
1 ms
7 A
15 ms
4.5 A
50 ms
3.5 A
220 V DC
1 ms
2 A
15 ms
1.7 A
50 ms
1.5 A
250 V DC
1 ms
2 A
15 ms
1.4 A
50 ms
1.2 A
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Electrical characteristics (according to IEC 62271-100 class 1)
Rated current Un
Breaking capacity
24 V DC
20 ms
18.8 A
60 V DC
20 ms
7.4 A
110 V DC
20 ms
4.2 A
250 V DC
20 ms
1.8 A
