Product Details

ZN23-40.5 vacuum circuit breakers for the high life rated 40.5kA, three-phase AC 50Hz indoor high-voltage electrical equipment. Apply to industrial and mining enterprises, substation and transmission and distribution systems for control and protection switching; particularly suitable for metallurgy, electric arc steel-making industries, etc. frequent operation required, as a control and protection equipment.

This product meets the GB1984-89 "AC High Voltage Circuit Breaker"standard. Circuit breaker directly into the GBC-35, JYN1-35 cabinet, remove the plug can be installed separately.

Mainly technical parameters

	Item	Units	Value
No	Item	Units	Value
1	Rated voltage	KV	40.5
2	Lightning impulse withstand voltage (peak)	A	185
3	1min power frequency withstand voltage	KA	95
4	Rated Frequency	KA	50
5	Rated current	KA	1250.1600.2000
6	Rated short-circuit making current	KA	25	31.5
7	Rated short-circuit withstand current	Times	25	31.5
8	Rated peak withstand current		63	80
9	Rated short-circuit continued time	Kv	4
10	Rated short-circuit making time	Kv	≤90
11	Rated short-circuit ON-OFF current	Ms	80
12	Rated operating sequence	Ms	O-0.3s-CO-180s-CO
13	Closing Time	Times	50~85
14	Opening Time	Times	40~85
15	Rated current making current breaking times	W	20
16	Mechanical life time	V	10000
17	Rated capacitor making current	S	630
18	Energy storage motor rated power	V	275
19	Energy storage motor rated voltage	V	25±2
20	Storage time	V	≤15
21	Closing and opening solenoid rated voltage	V	≈220.110
22	Loss of pressure tripping device rated voltage	A	≈220.100
23	Over current tripping device rated current	A	5
24	auxiliary switch rated voltage current		DC10