Circuit breaker A3724S

Manufacture and sale of automatic circuit breakers А3724С 250A, 200A, 160A, 80A - 660V, 380V, 400V 50-60 Hz in Europe. To comply with the operating and guarantee rules, the circuit breakers are sealed. In the delivery set there is always a passport of the automatic switch A3724S. Warranty 3 years! Export, service circuit breaker A 3724C.

Automatic switches А3724С are intended for carrying out of a current in a normal mode and protection at overloads of inadmissible duration, at short circuits and inadmissible descents of a pressure, and also infrequent (up to 30 times a day) operative disconnections of electric circuits with a rated voltage up to 660 In an alternating current of frequency 50 and 60 Hz and up to 440 VDC. A3724B - high-speed automatic switches. A3724S - selective automatic switches.

Switches A3724 are produced in a stationary version - front, rear, combined connections and in a retractable version. 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 - A3724SU3

for cold climate - A3724SHL3

for the tropical climate - A3724ST3

for river transport- A3724SR

Technical characteristics of the switches:

1. Rated current А3724S, А 250, ВА3724С up to 320А

2. Application category A.

3. The number of poles 3.

4. Settings for the current tripping of electromagnetic releases, A 800, 1250, 1600, 2000, 2500

5. Rated operating short-circuit breaking capacity, kA:

- at a rated voltage of 380 V 35.

- at a nominal voltage of 660 V 20.

- at a nominal voltage of 440 V 100.

6. Rated currents of semiconductor releases (RP), A 250; 160; 80.

7. Adjustable rated operating currents IR, A: 40; 50; 63; 80; 100; 125; 160; 200; 250.

8. Initial operating current in the zone of the overload currents, multiples of the rated working current of RP 1.25.

9. The setting of the response time in the zone of overcurrent currents at a current of 6IR, s: 4; 8; 16.

10. Settings for the response time in the zone of short-circuit currents, with 0,1; 0.25; 0.4.

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

12. Durability of switches:

- total number of cycles is 16,000.

- the number of cycles of VO under a load of 10000.

13. Overall dimensions (width x height x depth), mm 150x320x157.

14. Weight (stationary version), not more than 9.9 kg., Electromagnetic drive 12.6 kg