Circuit breaker A3793B
Sale and manufacture of circuit breakers А3793BU3, А3793BR, А3793BT3, A3793/1BU3, А3793BHL3, A3793 250A, 400A, 630A, 800A 440V, 220V, 110V, 550V, 600V, 24V DC and 380V, 400 V, 660V, 690V AC 50-60 Hz. Always ready for shipment products. А3733Б we will make under the order. Delivery of circuit breaker А 3793 2P in any country of the world!
Automatic switches A3793B, VA3793B, A3793/1B 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 cut-offs of electrical circuits with voltage up to 660V AC frequency 50 and 60Hz and up to 440VDC.
Switches A 3793B are available in fixed version - 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 - A3793BU3
for cold climate - A3793BHL3
for the tropical climate - A3793BT3
for river transport- A3793BR
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; 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.