Circuit breaker A3738S- A3737S
SALE AND MANUFACTURE OF AUTOMATIC SWITCHES А3738S, А3738SHL3, А3738SR, А3738SТ3, А3737S FOR NOMINAL CURRENTS UP TO 400 A SELECTIVE in Ukraine. We put it in any country in the world! 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 A-3738 380V, 400V 50Hz. Warranty 3 years!
TECHNICAL DESCRIPTION: The A378 circuit-breakers are designed to conduct current in normal mode and to protect against overloads of unacceptable duration, short circuits and unacceptable voltage drops, and for infrequent (up to 30 times a day) operational cutoffs of electrical circuits with a rated voltage of up to 660 V ( VA3730U to 1140V) of alternating current of frequency 50 and 60 Hz and up to 440 V of direct current.
AC A3738 circuit breakers can also be used for protection and infrequent direct starting of induction motors in the category of AC-3 applications.
Switches A-3738 are produced with thermal and electromagnetic maximum current releases, only with electromagnetic maximum current releases and without maximum current releases.
Switches can be equipped with an independent release, a zero-voltage release, free contacts and an electromagnetic drive.
Switches А3738С are issued in stationary design - front, rear, combined connections and in retractable design.
Such climatic designs-
for a moderate climate - A3738SU3, A3737SU3
for a cold climate - A3738SHL3, A3737SHL3
for a tropical climate - A3738ST3, A3737ST3
for river transport- A3738SR, A3737SR
Technical characteristics of the switches:
1. Rated current, A 400
2. Application category A.
3. The number of poles is 3.2.
4. Settings for the current tripping of electromagnetic releases, A-.
5. Rated operating short-circuit breaking capacity, kA:
- at a rated voltage of 380 V 50.
- at a nominal voltage of 660 V 27.
6. Wear-resistant switches:
- total number of cycles is 12,000.
- number of cycles of the VO under a load of 8000.
7. Overall dimensions (width x height x depth), mm 225х400х160.
8. Weight (stationary version), not more than 17.9 kg. With an electromagnetic drive of 23.4 kg.