Circuit breaker A3744B

Sale and manufacture of circuit breakers A3744, A 3744, A-3744, A3744B, A 3744B, A-3744B, A-3744-B, A 3744 B, A3744BU3, A 3744BU3, A-3744BU3, A-3744-BU3, A 3744 BU3, A3744BT3, A 3744BT3, A3744BT3, 3744BT3-A, 3744 A BT3, A3744BR, A 3744BR, A3744BR, A-3744BR, A 3744 BR A3744BHL3, 3744BHL3 A, A-3744HL3, A-3744BHL3, A3744-BHL3, A 37-44BHL3, A37-44-BHL3 630A, 400A, 800A 380V, 400V 50-60Hz 3P - high-speed! The best price in Ukraine on А37744 from RPE RIMK, LLC. They have proven themselves at enterprises in Ukraine, Kazakhstan, Moldova, Estonia, Latvia, Lithuania, Armenia, Azerbaijan, Hungary, Bulgaria, Romania, Poland, Sudan, Mongolia, Iraq, India, Sri Lanka, Poland, Qatar, Algeria, China, Sudan, South Africa as well as other countries of near and far abroad - Asia, Europe, Africa, South America. Export to any country in the world! Always in stock ready for shipment products. We manufacture circuit breakers to replace A3744 BU3, A3744 BHL3 of the Ulyanovsk Contactor Factory - 100% match of ALL INSTALLATION DIMENSIONS! In order to comply with the operating rules and ensure the warranty, the circuit breakers are sealed. In the delivery set there is always a passport of the A3744 circuit breaker. 3 year warranty! All products are certified. Export.

Brief technical description of A3740: A3744B, VA3744B automatic high-speed circuit breakers are designed to conduct current in normal mode, to selectively protect against short circuits, to protect against overloads of unacceptable duration and for infrequent (up to 30 times a day) operational switching on and off of electrical circuits with voltage up to 380V AC frequency 50 and 60Hz.

Switches A 3744B are available in fixed version - front, rear, combined connections and in retractable design. The switches can be equipped with an independent release, zero voltage release, free contacts, electromagnetic drive, manual remote drive (retractable version).

Such climatic modifications are made.

for temperate climate - A3744BU3

for cold climates - A3744BHL3

 tropical climate- A3744BT3

for river transport - A3744BR

Technical characteristics of switches:

1. Rated current, A 630 (VA3740 to 800A)

2. Application category A.

3. The number of poles 3.

4. Rated current of a semiconductor tripping device (RP), A 400; 630; 800

5. Adjustable values ​​of nominal operating currents IR, A 250; 315; 400; 500; 630; 800

6. The initial response current in the zone of overload currents, a multiple of the nominal operating current RP 1.25.

7. Setting the response time in the zone of overload currents at a current of 6IR, s: 4; eight; sixteen.

8. The settings for the operation current in the area of ​​short-circuit currents, multiples of the rated operating current 2; 3; five; 7; ten.

9. Settings for the current operation of electromagnetic releases, A 4000; 6300.

10. Rated operating maximum breaking capacity, kA:

- at rated voltage 380 V 56.

- at a rated voltage of 660 V 27.

11. Wear resistance of switches:

- total number of cycles per 12000.

- the number of VO cycles under load 8000.

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

13. Weight (stationary version), not more than 29 kg, not more.

     With electromagnetic drive 35.0 kg no more.