24kv Indoor Medium Voltage Embedded Pole Type Vacuum Circuit Breaker (ZN83)

• Customization: Available
• Certification: CCC, ISO9001, GB
• Shell Material: Stainless Steel
• Model NO.: Zn83-24kv
• Voltage Level: Medium Voltage
• Installation: Fixed
• Structure: Withdrawable
• Current: AC
• Rated Peak Withstand Current: 50,63,80ka
• Rated Short-Circuit Breaking Current: 20,25,31.5ka
• Clearance Between Open Contacts: 12~14 mm
• Contact Stroke: 3~5mm
• Mechanical Life (M2): 10,000(20,000)Times
• Transport Package: Carton
• Trademark: VACEM
• Origin: Wenzhou, China
• HS Code: 85352100

Product Description

General description

Introducing the ZN83-24KV series VCB, a cutting-edge indoor switchgear designed by the brilliant minds at VACEM Co., Ltd. This remarkable creation is specifically tailored for 24KV power systems, making it an absolute game-changer in the industry.
One of the standout features of the ZN83-24KV series is its state-of-the-art modular spring operating mechanism. This ingenious mechanism not only guarantees unparalleled reliability but also boasts an impressively long service life. And the best part? It requires absolutely zero maintenance! Say goodbye to those pesky upkeep tasks and hello to a hassle-free experience.
But that's not all. The ZN83-24KV series vacuum circuit breaker is not just any ordinary piece of equipment. It's a versatile powerhouse that can serve as the ultimate protection and control unit for power equipment in industrial and mining enterprises. And here's the cherry on top: it thrives in even the harshest environments, effortlessly handling frequent operations and multiple disconnections caused by short-circuits.
So, if you're seeking a top-notch solution for your power system needs, look no further than the ZN83-24KV series VCB. With its exceptional performance and unmatched durability, it's the perfect choice for those who demand nothing but the best.

Main technical parameter

 

Item			Unit	Date
Rated voltage			kV	24
Rated frequency			Hz	50
Rated insulation level	1min power frequency withstand voltage	pole to earth	kV	65
		phase	kV	79
	lightning impulse withstand voltage	pole to earth	kV	125
		phase	kV	145
Power frequency withstand voltage of secondary circuit			V	2000
Rated current			A	630	630	1250	1250
				1250	1250	1600	3150
						2000
Rated short-circuit breaking current			kA	20	25	31.5
Rated short-time withstand current			kA	20	25	31.5
Rated short circuit duration			s
Rated peak withstand current			kA	50	63	80
Rated short-circuit making current			kA	50	63	80
Rated short-circuit current breaking time (classE2)			times	30
Rated single/back to back capacitor bank breaking current			A	630/400
Clearance between open contacts			mm	12~14
Contact stroke			mm	3~5
Allowable wear thickness of contact			mm	3
Average opening speed			m/s	1.1~1.6
Average closing speed			m/s	0.6~1.1
Contact closing bounce time			ms	≤2
Different phase of contact closing and opening			ms	≤2
Rebound amplitude of opening contact			mm	≤2
Opening time (rated voltage)			ms	20~50
Closing time (rated voltage)			ms	30~70
Mechanical life (M2)			times	10,000(20,000)
Rated operating voltage			V	AC110/220 DC110/220
Rated operation sequence				0-0.3s-CO-180s-CO

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