Circuit breaker A3744P

We manufacture and sell A3744P circuit breakers for 400A, 500A, 630A, 380V, 400 V and 660V 50Hz , 60Hz and 400 Hz. Excellent quality and price in Ukraine for A 3744P automatic circuts breakers. Automatic switches A 3744P used in mobile installations. The warranty on the A3744 P breakers will be at least 20 years. During the deliveries, the A-3744P automatic circuit breakers in Ukraine, Kazakhstan, Moldova, Latvia, Estonia, Lithuania, India, Mongolia, Vietnam, South Korea, Romania, Hungary, Bulgaria, Armenia, Slovenia, Qatar, Oman, Albania, Azerbaijan, Tajikistan, South Africa, Turkey, Ethiopia, Macedonia, Sudan, Egypt, Serbia and the Czech Republic as well as in the countries of near and far abroad - in Asia, Europe, Africa, South America, the Middle East proved to be excellent at the KhEMZ plant. In stock. Export the automatic switches A3744П. Always available!

High-speed automatic switches А-3744P are designed for carrying out 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 cut-offs of 380V or 660V AC voltage circuits of frequency 50 and 400Hz.

Switches are manufactured in stationary version. Switches can be equipped with an independent release, free contacts, electromagnetic drive, manual remote drive.

The main technical characteristics of switches A 3744P:

1. Rated current, A 630.

2. Application category V.

3. Rated currents of semiconductor releases (RP), A 400; 500; 630.

4. Adjustable rated operating currents IR, A: 250; 320; 400; 500; 630.

5. Initial operating current in the zone of overcurrent, multiples of the rated working current of RP 1.3.

6. The setting of the electromagnetic release A: 4000, 5000, 6300 or others on request.

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 or 3; 5; 7; 10.

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

10. Rated operating short-circuit breaking capacity, kA 50.

11. Wear resistance of switches:

- total number of cycles is 16,000.

- number of cycles of VO under load 3000.

12. Weight not more than 25.2 kg., With electromagnetic drive -33.0 kg, no more than