VA3712

SALE OF AUTOMATIC SWITCHES VA3712 - AT RATED CURRENTS UP TO 200 A.

TECHNICAL DESCRIPTION: Circuit-breakers of the type VA3712 are designed for conducting current in normal mode, for selective protection in case of short circuits, for protection during overloads of unacceptable duration and for infrequent (up to 30 times in day) of operational switching on and off of electrical circuits with voltage up to 380V AC of frequency 50 and 60Hz.

Switches are manufactured in stationary and in retractable designs.

Switches can be equipped with an independent release, a zero-voltage release, free contacts, an electromagnetic drive, a manual remote drive (in retractable version).

The main technical characteristics of the switches:

1. Rated current, A 200.

2. Application category V.

3. Rated currents of semiconductor releases (RP), A 80; 160; 200.

4. Adjustable values ​​of rated working currents IR, A:

- 16; 20; 25; 31.5; 40; 50; 63; 70; 80;

- 80; 90; 100; 110; 120; 125; 140; 150; 160; 200.

5. Initial operating current in the zone of overcurrent currents, multiples of the rated working current of RP 1.25.

6. Set-point according to the response time in the overload current zone, s: 1; 2; 4 at a current of 5IR or 2; 4; 8; 16 at a current of 6IR.

7. Settings for the response time in the zone of short-circuit currents, c 0; 0.1; 0.2; 0.3 (also available with settings of 0.4 and 0.5 s).

8. Settings for the operating current in the zone of short-circuit currents, multiples of the rated working current 2; 3; 5; 7; 9; 10.

9. Rated short-time withstand current, kA 5

10. Rated operating short-circuit breaking capacity, kA 7.5.

11. Wear resistance of switches:

a) the total number of cycles is 16,000.

b) number of cycles of VO under load:

     - switches for rated current 80 A 10000.

     - switches for rated current 160 A 8000.

12. Overall dimensions (width x height x depth), mm 112x320x157.

13. Weight (stationary version), not more than, 7.5 kg. With electromagnetic drive - 9.5 kg.