ZN23-40.5C series car type indoor high-voltage vacuum circuit breakerDetailed product description：

The ZN23-40.5C series vehicle mounted high-voltage vacuum circuit breaker (hereinafter referred to as the circuit breaker) is an indoor high-voltage electrical equipment with a rated voltage of 40.5kV and three-phase AC 50Hz. It is suitable for power transmission and distribution systems in industrial and mining enterprises, substations, etc., and serves as a control and protection switch; Especially suitable for industries such as metallurgy and arc steelmaking that require frequent operations, as control and protection equipment.

The ZN23-40.5C series car type indoor high-voltage vacuum circuit breaker meets the standard of G1984-89 "AC Vacuum Circuit Breaker".
This circuit breaker is a handcart type, with a reasonable structure, easy maintenance, and safe and reliable use. Equipped with CD10 Ⅱ electromagnetic actuator or CT19 Ⅱ spring actuator.
2. Normal usage conditions
a) Altitude: not exceeding 1000m;
b) Surrounding air temperature: upper limit+40 ℃, lower limit -15 ℃;
c) Relative humidity: daily average not exceeding 95%, monthly average not exceeding 90%;
d) Water vapor pressure: daily average not exceeding 2.2kPa, monthly average not exceeding 1.8kPa;
e) The surrounding air is not significantly polluted by dust, smoke, corrosive and flammable gases, vapors, and salt spray;
f) Places without severe vibrations;
g) Any requirements beyond the above conditions shall be agreed upon by the user and the manufacturing unit.

3. Main technical parameters of ZN23-40.5C series car type indoor high-voltage vacuum circuit breaker:

serial number	name	unit	data
one	rated voltage	kV	forty point five
two	Lightning impulse withstand voltage (peak value)		one hundred and eighty-five
three	1-minute power frequency withstand voltage		ninety-five
four	rated frequency	Hz	fifty
five	rated current	A	six hundred
six	Rated short-circuit breaking current	kA	twenty-five
seven	Rated short-circuit withstand current of 4s		twenty-five
eight	Rated peak withstand current		eighty
nine	Rated short-circuit breaking time	ms	≈90
ten	Rated short-circuit closing current (peak)	kA	eighty
eleven	Rated operating sequence		0-0.3s-CO-180s-0
twelve	closing time	ms	50~85
thirteen	Opening time		40~85
fourteen	Rated short-circuit breaking current breaking times	time	twenty
fifteen	mechanical life		twelve thousand
sixteen	Rated breaking current of capacitor bank	A	six hundred and thirty
seventeen	Rated power of energy storage motor	W	two hundred and seventy-five
eighteen	Rated voltage of energy storage motor	V	≈ 220, 110
nineteen	Energy storage time	s	fifteen
twenty	Rated voltage of closing and opening electromagnet	V	≈ 220, 110
twenty-one	Rated voltage for voltage loss trip		≈ 220, 110
twenty-two	Rated current for overcurrent trip	A	five
twenty-three	Rated current of auxiliary switch		ten

ZN23-40.5C series car type indoor high-voltage vacuum circuit breaker