Zn12-40.5kv Vacuum /Air Circuit Breaker 3 Phase 40.5kv

• Customization: Available
• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Electric Type
• Model NO.: ZN12-40.5KV
• Installation: Fixed
• Structure: Moulded Case Circuit Breaker
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection
• Certification: VDE, ISO9001-2000, CE, CCC
• Voltage: 40.5kv
• Transport Package: Wooden Packing
• Specification: Iec
• Trademark: VILLE
• Origin: Ningbo China
• HS Code: 85
• Production Capacity: 100000

Product Description

ZN12 Indoor AC HV Vacuum Circuit breaker

Product introduction:
Base on the technology of Germany Siemens, ZN12-40.5 Indoor AC HV Vacuum Circuit breaker is developed. It
is an indoor switchgear used for the power system with 40.5 kV rated voltage, three-phase AC 50 Hz. The circuit
breaker is able to be operated frequently and break the false short circuit current for many times. It is not only
suitable for trolley switchgear but for fixed switchgear to protect and control the apparatus in industrial and
mining field, enterprises, power plant and substation.

Features:
High breaking capability, long endurance. Adopting integration spring operating mechanism, it is simple in
structure, small in size and reliable in performance. The main galvanic circle and operating mechanism is in
front and back arrangement and they are flexible and easily mounted. It is simple and reliable with mechanical
and electrical interlocking. It adopts plateau design and it has good insulation level.

Technical parameters:

No.	Name	Unit	Technical parameter
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.	Peak withstand current		63	80
5.	Short time current (4s)		25	31.5
6.	Rated short circuit making current		63	80
7.	Rated short circuit breaking times	Times	30	30
8.	Operating sequence		O-0.3s-CO-180s-CO
9.	Lightning impulse withstand voltage	KV	185
10.	Rated short time power frequency withstand voltage(1min)		95
11.	Closing time	Ms	<=90
12.	Opening time		<=70
13.	Energy stored time	S	<=15
14.	Mechanical endurance	Times	10000
15.	Rated current breaking times		10000
16.	Energy stored electric machine rated frequency	W	275
17.	Energy stored electric machine rated voltage	V	DC110   AC/DC220
18.	Making electromagnet rated voltage		DC110   DC220
19.	Making electromagnet rated resistance	¦¸	57.7   247
20.	Making electromagnet rated current	A	DC1.91   DC0.89
21.	Over current release current		5
22.	Auxiliary switch rated current		AC10   DC5
23	Contact moving distance	Mm	25(+ or -)2
24	Contact travel		8(+ or -)2
25	Closing speed	M/s	1.0 to 1.8
26	Opening speed	M/s	1.0 to 1.8
27	Contact closing bouncing time	Ms	<=2
28	Phase to phase central distance	Mm	350,400,460
29	Asynchronization of making contact	Ms	<=2
30	Each phase main circuit resistance	¦Ì¦¸	<=40
31	Wear thickness allowance of moving contact and static contact	Mm	<=3

Our workshop



Our sales team


Our Services

1.	Pre sale service
a.	make technical solution
b.	send quotation, technical data sheet and drawing
c.	prepare power transmission plan, testing plan,and shipment plan
2.	In sale service
a.	supervise the manufacturing schedule totally in accordance with the plan
b.	send photos to customer during every manufacturing process(hold point)
c.	inform the customer one week before testinng.
3.	After sale service
a.	installation and commissioning, training the workers
b.	quick response within 12 hours any time
c.	provide 12 months gurantee period normally.

 

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