Circuit breaker A3794B

Sale and manufacture of circuit breakers A3794BU3, A3794BR, A3794BT3, A3794BHL3.

Automatic switches A3794B, VA3794B high-speed are designed to conduct 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 a day) operational inclusions and cutoffs of electrical circuits with voltage up to 380V AC frequency 50 and 60Hz.

Switches А3794B are issued in stationary design - front, rear, combined connections and in retractable design. Switches can be equipped with an independent release, a zero-voltage release, free contacts, an electromagnetic drive, a manual remote drive (in retractable version).

Such climatic designs-

for moderate climate - A3794BU3

for cold climate - A3794BHL3

for the tropical climate - A3794BT3

for river transport- A3794BR

The main technical characteristics of the switches:

1. Rated current, A 800.

2. Application category V.

3. Rated currents of semiconductor releases (RP), A 250; 400; 630; 800.

4. Adjustable rated operating currents IR, A: 160; 200, 250. 250; 315; 400. 400; 500; 630; 800.

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

6. Setpoint according to the response time in the zone of overcurrent currents at a current of 6IR, s: 4; 8; 16.

7. Settings for the response time in the zone of short-circuit currents, with 0.1; 0.25; 0.4.

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

9. Rated short-time withstand current, kA 20.

10. Rated operating short-circuit breaking capacity, kA 50.5.

11. Wear resistance of switches:

- total number of cycles is 16,000.

- number of cycles of VO under load 3000.

12. Overall dimensions (width x height x depth), mm 225x400x160.

13. Weight (stationary version), not more than 20.1 kg.

     With an electromagnetic drive - 26.4 kg.