ZN12-40.5 Type indoor AC high voltage vacuum circuit breaker Made in China - Suppliers and Manufacturers

Product Description

ZN12-40.5 Type indoor AC high voltage vacuum circuit breaker

1. Product Introduction

ZN12-40.5 Type indoor AC high voltage vacuum circuit breaker is based on retention ZN12-12 series of spring mechanism with high reliability a bit on the small domestic use of longitudinal magnetic field vacuum interrupter 90's newly developed product is small, reliable performance, installation flexibility and other advantages.
Meanwhile, in order to suit different requirements of the switchgear, developed 350,400 / 460mm from the three different phases of products to meet the needs of different users. Product is suitable for frequent operation at rated parameters, and breaking several fault short circuit current. ZN12-40.5 Type indoor AC high voltage vacuum circuit breaker is applicable to both handcart switchgear, also applies to fixed switchgear.

2.Product Parameter (Specification) of ZN12-40.5 Type indoor AC high voltage vacuum circuit breaker

No.	Item	Unit	Parameters
1	Rated voltage	kV	40.5
2	Rated current	A	1250,1600,2000,2500
3	Rated short circuit breaking current	kA	25	31.5
4	Dynamic stability current	kA	63	80
5	Thermal stability current	kA	25	31.5
6	Rated short-circuit current	kA	63	80
7	Rated short circuit breaking times	time	30	30
8	Sequence of operations
9	Lightning impulse withstand voltage	kV	O-0.3S-CO-180S-CO
10	Rated short-duration power frequency withstand voltage (1min)	kV	185
11	Closing time	ms	95
12	Opening time	ms	=< 90
13	Charging time	s	=< 70
14	Mechanical life	time	=< 15
15	Rated current breaking times	time	10000
16	Charging motor rated power	W	10000
17	Charging motor rated voltage	V	275
18	Sub-gate solenoid rated voltage	V	110 220
19	Sub-gate solenoid rated resistance	Ω	DC110 DC220
20	Sub-gate solenoid rated current	A	57.7 247
21	Over-current release rated current	A	DC1.91 DC0.89
22	Auxiliary switch rated current	A	5

3. Type meaning of ZN12-40.5 Type indoor AC high voltage vacuum circuit breaker
Z N 12 - 40.5 / 0- 0
Z: vacuum circuit breaker
N: Indoor
12: No. Product Design
40.5: Rated voltage
0: Rated current
0: Rated short circuit breaking current

4. Structure Introduction of ZN12-40.5 Type indoor AC high voltage vacuum circuit breaker

ZN12-40.5 Type indoor AC high voltage vacuum circuit breaker before and after leading electrical circuit with the actuator arrangement, the circuit breaker operating mechanism for the special spring mechanism, while retaining the original mechanism ZN12 (introduction of Siemens technology) mechanism while the merits of the relevant parts shall be suitably modified.
Main circuit selected advanced AMF vacuum interrupters, circuit breakers small, reliable performance. Mainly by the overall structure of the vacuum interrupter, operating mechanism and supporting parts in the front end of the fixed mechanism box six insulators, three up and down through a vacuum interrupter appear fixed on the insulator, at the outlet is equipped with soft connection, flexible connection conductive vacuum interrupter chamber is connected to the folder.
At the bottom of the movable conductive rod is mounted bearings, spherical plain bearings through the shaft pin with the lower outlet end of the crank arm connected to the actuator shaft by three insulated rod to the torque transmitted to the conductive bars open and close the switch to complete the action.

5. Ordering Information for ZN12-40.5 Type indoor AC high voltage vacuum circuit breaker
1. The name of the circuit breaker, model, size and number of orders

2. The circuit breakers rated voltage, rated current and rated short-circuit breaking current
3. Optional element program

4. Rated operating voltage

5. Spare, the name and quantity of spare parts
6. If there are other special customer requirements, when ordering