China ZN85-40.5 Manufacture and Factory

Home Products Low voltage Electric A-Modular DIN Rail YCB9 Series

Product Overview
Product Details
Data Download
Related Products

Conatct Us

ZN85-40.5

Picture

ZN85-40.5

1. Overload protection
2. Short circuit protection
3. Controlling
4. Used in residential building, non-residential building, energy source industry and infrastructure.
5. According to the type of instantaneous release classified as follows : type B(3-5)ln, type C(5-10)ln, type D(10-20)ln

Conatct Us

Product Details

Selection

Operating conditions

1. Ambient temperature -10℃ ~ +40℃
2. Altitude ≤ 1500m;
3. Relative humidity: the daily average is not greater than 95%, the monthly average is not greater than 90%, the daily average of saturated steam is not greater than 2.2* 10- ³Mpa, and the monthly average is not greater than 1.8* 10- ³Mpa;
4. The earthquake intensity does not exceed 8 degrees;
5. Places free of fire, explosion hazards, severe pollution, chemical corrosion and severe vibrations.

Features

1. Adopt the lead screw propulsion mechanism, labor saving, stable, good self-locking performance.
2. Small volume, flexible operation, with characters of reliable electrical performance, long service life, easy maintenance, low maintenance.

Installation

1. The installation form of ZN85 vacuum circuit breaker in switch cabinet can be fixed, can also be drawout style, has good interchangeability.
2. This series handcart type circuit breaker is mainly used for 1400mmKYN61 ground cabinet, fixed type circuit breaker is used for XGN-40.5, GG1A-40. 5 and box type substation etc..

Actuator

1. Vacuum circuit breaker ZN85 using the integral type 3AV3 spring operating mechanism, mechanism is relatively mature, stable and reliable.
2. Mechanism design is simple, the output curve and the performance is more suitable for the characteristics and requirements of 40.5kV vacuum circuit breaker.

Technical data

Item	Unit	Parameter
Parameters of voltage, current, life
Rated voltage	kV	40.5
Rated short time power frequency withstand voltage (1min)	kV	95
Rated lightning impulse withstand voltage (peak)	kV	185
Rated frequency	Hz	50
Rated current	A	630, 1250, 1600, 2000 2500
Rated short-circuit breaking current	kA	25	31.5
Rated short-time withstand current (RMS)	kA	25	31.5
Rated peak withstand current	kA	63	80
Rated short-circuit closing current	kA	63	80
Rated single / back-to-back capacitor	A	600/400
bank breaking current
Rated short-circuit current duration	S	4
Rated short-circuit current breaking Times	Times	20
Rated operating sequence		O-0.3s-CO-180s-CO
The main galvanic circle resistance	μΩ	≤65
Rated operation voltage		AC/DC≌ 220/110
Mechanical life	Times	≥10000
Mechanical property parameters
Open clearance between contacts	mm	18±1
Overtravel	mm	5±1
Contact closing bounce time	ms	≤3
Three-phase, switching synchronism	ms	≤2
Average opening speed	m/s	1.7±0.2
Average closing speed	m/s	0.75±0.2
Opening time (rated voltage)	ms	≤90
Closing time (rated voltage)	ms	≤60
Allowable wear thickness for dynamic and static contact	mm	3

Overall and mounting dimensions(mm)

External dimensions of insulating cylinder type

Rated current(A)	630	1250	1600	2000	2500
Rated short-circuit breaking current (kA)	20/25/31.5		31.5
Equipped static contact size (mm)	Φ35	Φ49	Φ55	Φ79	Φ109
Plum-blossom contacts	CT-30	CT-30	CT-36	CT-48	CT-64

Dimensions of solid seal type

Rated current(A)	630	1250	1600	2000	2500
Rated short-circuit breaking current (kA)	20/25/31.5			31.5
Equipped static contact size (mm)	Φ35	Φ49	Φ55	Φ79	Φ109
Plum-blossom contacts	CT-30	CT-30	CT-36	CT-48	CT-64