ZN63-12 Vacuum Circuit Breaker

1. PRODUCTION INTRODUCTION

 

ZN63-12 indoor vacuum circuit breaker is an indoor high voltage switch composition of three-phase,rated frequency 50HZ, rated voltage 12Kv. Provide reliable protection and control for State Grid industrial and mining enterprises and other power-consuming industries. The integrated design of spring operating mechanism and circuit breaker made the product with a long mechanical life,capability of multiple breaking and fast re-closing.

ZN63-12 indoor vacuum circuit breaker has the advantages of long life, simple maintenance, zero pollution, zero explosion hazard, and low noise.The vacuum interrupter is installed in the insulating cylinder, with strong insulation performance and strong anti-corrosion ability.

 

Conditions of Use ZN63-12 indoor vacuum circuit breaker:

Ambient air temperature: upper limit +40°C, lower limit -15°C.

Altitude: ≤100m (if the altitude needs to be increased, the rated insulation level should be increased accordingly).

Amplitude: The degree of earthquake sequence does not exceed 8 degrees.

The daily average relative humidity of the air is not more than 95%, and the monthly average is not more than 90%.

 

Advantage：

High reliability: suitable for reclosing operation of various characteristics.

All working conditions: vertical insulating cylinders are used to prevent the influence of various special environments.

Maintenance-free: Adopt solid insulating structure - integrated solid-sealed pole.Full-featured, multi-purpose can be fixed installation, removable use, can also be installed on the frame for use.

Standardized design: good interchangeability and strong versatility.

 

2. Specification

No.	Item	Unit	Data
1	Rated Voltage	Kv	12
2	Maximun Working Voltage	Kv	12
3	Rated Current	A	630-1250	1600-2000	3150-4000
4	Rated short Circuit Breaking Current	Ka	20	25	40
5	Rated short Circuit Switching Current	Ka	50	63	100
6	Rated Peak Withstand Current	Ka	50	63	100
7	4S Rated Short-circuit Withstand Current	Ka	20	25	40
8.a	Rared Insulation Level: 1min Power Freauency Withstand Voltage	Kv	42
8.b	Rared Insulation Level：Impulse Withstand Voltage	Kv	75
9	Rated Operating Sequence	S	O-0.3S-CO-180S-CO
10	Mechaical Life	Times	10000
11	Rated Short-circuit Current Breaking Times	Times	50
12	Rated Operating Mechanism Closing Voltage	V	AC/DC  110/220
13	Rated Operating Mechanism Opening Voltage	V	AC/DC  110/220
14	Contact Opening Distance	mm	10 + 1
15	Overtravel(The Length of Contact Spring Compression)	mm	3.5 + 0.5
20.a	Tripping Time on Maximum Oprating Voltage	s	≤0.05
20.b	Tripping Time on Minimum Oprating Voltage	s	≤0.08
21	Closing time	s	0.1
22	The Main Circuit Resistance of Each Phase		630≤50    1250≤45 1600≤40
23	Allowed Consumpted Thinckness of Contacts	mm	3

 

3. PRODECTION DETAILS

Installation size (Unit:mm)

 

4. COMPANY PROFILE

ShanxiHuadiand Electric Co.,LTD. is committed to serving China's electric power and power distribution system to provide safe and stable products and services, mainly producing and selling vacuum circuit breakers, fuses, instrument transformers, isolation switches, load switches, cable accessories, cable branch boxes, wall bushings, ring network inflation cabinets and other electrical equipment.

The company has strong technical support, exquisite production technology, advanced testing equipment and perfect scientific management system. The company has passed the IS09001 international quality system certification, and the whole series of products have passed the domestic authoritative certification

 

4. PRODUCTION WORKSHOP

 

 

5. PRODECT QUALIFICATION

 

 

6. CERTIFICATIONS

 

 

 

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