ZN23-40.5 series mcb circuit breaker abb breaker electric circuit breaker

High precision mechanical structure High conductivity copper

Description

ZN23-40.5 series handcart type indoor vacuum circuit breaker 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.

Technical data

NO	Item	Units	Technical parameters
1	Rated voltage	kV	40.5
2	Thunder impulse withstand voltage(peak value)	kV	185
3	lmin industrial frequency withstand voltage	kV	95
4	Rated frequency	Hz	50
5	Rated current	A	1250,1600,2000
6	Rated short-circuit break current	kA	25	31.5
7	Rated peak value withstand current	kA	25	31.5
8	Rated peak value withstand current	KA	63	80
9	Rated short-circuit duration time	s	4
10	Rated short circuit breaking time	ms
11	Rated short circuit closing current	kA	80
12	Rated operation order		0-0.3s-C0-180s-C0
13	Time of closing brake	ms	50~85
14	Time of breaking brake	ms	40~85
15	Rated short-circuit current break and close times	Times	20
16	Mechanical life-span	Times	10000
17	Rated dropout current of condenser bank	A	630
18	Rated power of energy-storage electric machine	W	275
19	Rated volt of energy-storage motor	V	25 ± 2
20	Storage time	S	≤15
21	Closing and opening solenoid rated voltage	V	≈220,110
22	Loss of pressure tripping device rated voltage	V	≈220,110
23	Over current tripping device rated current	A	5
24	Auxiliary switch rated voltage current	A	DC10

Overall Dimension

ZN23-40.5 series mcb circuit breaker abb breaker electric circuit breaker

ZN23-40.5 series mcb circuit breaker abb breaker electric circuit breaker