DK5-1600 Intelligent Low Voltage Vacuum Circuit BreakerDetailed product description：

1. Overview
DK5-1600 intelligent environmentally friendly low-voltage vacuum circuit breaker is a three-phase AC 50Hz, rated voltage of 380V, 660V, 1140V, and rated current of 630-1600A low-voltage distribution device. It is mainly used for distributing electrical energy, protecting lines, and preventing power supply settings from being damaged by overload, undervoltage, short circuit, single-phase grounding and other faults.
This circuit breaker adopts ST30-M intelligent controller, which has multiple protection functions, can achieve selective protection, and has accurate and reliable action.
The operating mechanism and circuit breaker are integrated structures, with functions such as electric and manual energy storage, electric and manual opening and closing, undervoltage tripping, etc. The operation is reliable and the service life is long.
Compared with air circuit breakers, this product has a long service life, multiple short-circuit breaking times, strong arc extinguishing ability, and truly achieves zero arcing. It can be used in places where air circuit breakers are not suitable for use at present (such as places that require high power supply reliability, do not allow frequent power outages for maintenance, operate frequently, and are prone to fire, explosion hazards, and other harsh environmental conditions). It is the best choice for industrial and mining enterprises, power and other electricity departments.
2. Normal usage conditions
a) Altitude not exceeding 2000m;
b) Surrounding air temperature: -5 ° C to 40 ° C, and the average value measured within 24 hours does not exceed 35 ° C;
c) Atmospheric humidity: When the ambient air temperature is+40 ° C, the relative humidity of the atmosphere does not exceed 50%. At lower temperatures, there can be higher relative humidity, with an average maximum relative humidity of 90% in the wettest month, and an average minimum temperature of 25 ° C in that month, taking into account condensation on the surface of the product due to temperature changes.
d) Pollution level: Level III;
e) Installation category: Circuit breaker installation category IV, auxiliary circuit installation category III, except for the undervoltage release coil and the primary side coil of the transformer used for ST30-M controller, which are the same as the circuit breaker;
f) Any requirements beyond the above conditions shall be agreed upon by the user and the manufacturing unit.

3. Main technical parameters:

serial number	name			unit	data
one	Rated current of shell level			A	one thousand and six hundred
two	Rated working current				630, 800, 1000, 1250, 1600
three	rated frequency			Hz	fifty
four	Rated working voltage			V	three hundred and eighty	six hundred and sixty	one thousand one hundred and forty
five	Rated insulation voltage				four hundred	six hundred and ninety	one thousand one hundred and forty
six	Rated ultimate short-circuit breaking capacity			kA	sixty-five	sixty-five	forty
seven	Rated operating short-circuit breaking capacity				sixty-five	sixty-five	forty
eight	Rated short-time withstand current				forty	forty	forty
nine	Short circuit breaking capacity under rated short-time withstand current				forty	forty	forty
ten	1-minute power frequency withstand voltage	main circuit	Between fracture surfaces	V	two hundred and fifty	three thousand	four thousand and two hundred
			alternate
			relatively
		auxiliary circuit
eleven	mechanical life			time	ten thousand
twelve	Rated operating short-circuit current breaking times				sixteen
thirteen	The number of times the drawer type circuit breaker is inserted into the drawer				one hundred

Rated voltage of control circuit

Power type	Rated voltage
	Single phase AC 50Hz	direct current
Closing coil power supply	220、380V	110、220V
Power supply for shunt release	220、380V	110、220V
Undervoltage release power supply	220、380V	-
Motor power supply	220、380V	110、220V
ST30-M intelligent release power supply	220、380V	-
Auxiliary touch power supply	220、380V	110、220V

DK5-1600 Intelligent Low Voltage Vacuum Circuit Breaker