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Remotely operated circuit breakers А series

TУ 16-522.153-81

Remotely operated circuit breakers are intended:

  • for protection of equipment during overload in DC path;
  • for switching of electrical circuits: DC and AC (frequency from 400 to 1000 Hz) -  А-0,5P, А-0,5М, А-1P, А-1М, А-2P, А-2М, А-14P, А-14М, А-25P, А-25М, А-35PА, А-35МА, А-50PА, А-50МА; DC -  А-5P, А-5М, А-5VP, А-5VМ, А-7,5P, А-7,5М, А-7,5VP, А-7,5VМ, А-10P, А-10М, А-10VP, А-10VМ, А-35P, А-35М, А-35VP, А-35VМ, А-50P, А-50М, А-50VP, А-50VМ;
  • for automatic disconnection of equipment if operating voltage is simultaneously present on the windings closing and opening coils.
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Technical Data

Type

Main circuit rated current, А

Number and type of contacts

Aux. power connection

main circuit

auxiliary circuit

closing

opening

closing

opening

switching

А-0,5P

А-1P

А-2P

0,5

12

4

2

2

positive common

А-5P

А-7,5P

А-10P

5

7,5

10

4

2

А-14P

А-25P

14

25

4

2

2

2

А-35PA

А-50PA

35

50

4

2

2

А-35P

А-50P

35

50

2

2

2

2

А-0,5М

А-1М

А-2М

0,5

12

4

2

2

negative common

А-5М

А-7,5М

А-10М

5

7,5

10

4

2

А-14М

А-25М

14

25

4

2

2

2

А-35МА

А-50МА

35

50

4

2

2

А-35М

А-50М

35

50

2

2

2

2

А-5VP

А-7,5VP

А-10VP

5

7,5

10

4

2

positive common and time delay for tripping due to overload

А-35VP

А-50VP

35

50

2

2

2

2

А-5VM

А-7,5VM

А-10VM

5

7,5

10

4

2

negative common and time delay for tripping due to overload

А-35VM

А-50VM

35

50

2

2

2

2

Auxiliary circuit rated current 2А for all devices.
Auxiliary supply voltage for windings 27 +9-4 V DC.
Pickup voltage, max., 20 V

Pickup current for current elements

А-0,5P (М)

0.85 – 1.1 А

А-14P (М)

23.8 – 30.8 А

А-1P (М)

1.7 – 2.2 А

А-25P (М)

42.5 – 55.0 А

А-2P (М)

3.4 – 4.4 А

А-35PА (МА)

59.5 – 77.0 А

А-5P (М) А-5VP (VМ)

8.5 – 11.5 А

А-50PА (МА)

85.0 – 110.0 А

А-7,5P (М) А-7,5VP (VМ)

12.75 – 17.25А

А-35P (М) А-35VP (VМ)

59.5 – 80.5 А

А-10P (М) А-10VP (VМ)

17.0 – 23.0 А

А-50P (М) А-50VP (VМ)

85.0 – 115.0 А

Minimum switching current (main circuit)

For А-0,5-2

0.02 А

For other devices

0.05 А

Min. switching current (aux. cicrcuit)

0.02 А for all devices

Overall and mounting dimensions

Type

Dimensions, mm

Lmax

Bmax

Hmax

0,5P (М)

1P (М)

2P (М)

76

52

36

14P (М)

25P (М)

5PА (МА)

50PА (МА)

89

73

43

5P (М)

5VP (VМ)

7,5P (М)

7,5VP (VМ)

10P (М)

10VP (VМ)

94

60

44

35P (М)

35VP (VМ)

50P (М)

50VP (VМ)

117

73

46

Implementator

RECONT Engineering Complex

RECONT Engineering Complex manufactures low voltage devices: contactors and relays. This is one of the basic business areas for CHEAZ.

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