Circuit breaker VA3782

SALE OF AUTOMATIC SWITCHES VA3782BU3, A3782BR, VA3782- ON RATED CURRENT UP TO 250 A WITH ELECTROMAGNETIC RELEASE.

Technical description: Circuit breakers BA3782 for rated current up to 250 A with thermal and electromagnetic releases. Circuit breakers BA3781, BA3785, BA3787- 2 pole are manufactured for direct and alternating (Hz 50, 400) currents. Circuit breakers BA3782, BA3786, BA3788- 3 pole, manufactured for alternating current (Hz 50, 400). Circuit breakers are designed to conduct current in normal mode and protect against overloads of unacceptable duration, with short circuits and unacceptable voltage drops, as well as for infrequent, up to 30 times a day, operational outages of electrical circuits with a rated voltage up to 660 V AC and frequency 50 and 60 Hz and up to 440 V DC. AC circuit breakers can also be used to protect infrequent direct starts of induction motors in the AC-3 application category. Circuit breakers are available with semiconductor trip units, with semiconductor and electromagnetic overload releases, with thermal and electromagnetic overcurrent releases, only with electromagnetic overcurrent releases and without maximum overcurrent releases. Circuit breakers can be equipped with a zero-voltage release, shunt release, free contacts and an electromagnetic drive. Circuit breakers are available in a fixed version - front, rear and combined connection and retractable version.

Circuit breakers are available in a fixed version - front, rear and combined connection and retractable version.

The switches can be equipped with an independent release, zero voltage release, free contacts, electromagnetic drive, manual remote drive (retractable version).

Main technical characteristics of switches:

1. Rated current, A 250.

2. Application category A, B.

3. Rated currents of thermal releases (РТ), А 160; 200; 250

4. Adjustable values ​​of nominal operating currents IR, A:

- 160;

- 200; 250

5. Initial tripping current in the zone of overload currents, multiple to nominal operating current PT 1.25.

6. -

7. -

8. The settings for the operation current in the area of ​​short circuit currents are calibrated to 2500A

9. Rated short-time withstand current, kA 5.

10. Rated operating maximum breaking capacity, kA 7.5.

11. Wear resistance of switches:

a) the total number of cycles per 16000.

b) the number of VO cycles under load:

     - switches for rated current 80 A 16000.

     - switches for rated current 160 A 15000.

12. Overall dimensions (width x height x depth), mm 112х290х157.

13. Weight (stationary version), not more than 8.9 kg. With electromagnetic drive - 11.0 kg.