3-in-1 Load Breaker Switch TYF-12GDR,Indoor Switch-3-in-1 Load Breaker Switch TYF-12GDR-Wenzhou Tuyuan Electric Co.,Ltd

TUYUAN TYV5G-12 type vacuum circuit breaker adopts a highly reliable permanent magnet mechanism and an intelligent controller.This device is mainly used in medium-voltage 10 kV power grids for switching load current, overload current, and short-circuit current.

Compact size and light weight for easy installation
Extremely high reliability
Completely maintenance-free throughout its service life
High mechanical and electrical endurance

Ambient air temperature: -25°C to 45°C

Altitude: not more than 1000 m

Wind speed: not exceeding 34 m/s

Vibration or seismic effects from outside the switchgear and control equipment can be neglected

Pollution level: Grade IV

Working temperature: -40°C to 40°C

*Note：

Customized products for other special working conditions are available on your requirements.

No.	Item	Unit	Data
1	Rated Voltage	kV	12
2	Rated Current	A	630/1000/1250
3	Rated Frequency	Hz	50
4	Power frequency withstand voltage for 1 min (wet) / (dry) P to P, P-to-E / across the isolating distance	kV	42
5	Lightning impulse withstand voltage (peak) P to P, P-to- E / across the isolating distance	kV	75
6	Rated short-circuit breaking current	kA	20/25
7	Rated short-circuit making current (peak)	kA	40/50
8	Rated peak withstand current	kA	40/50
9	4s short-time withstand current	kA	20/25
10	Rated operating sequence		O－0.3s－CO－10s－CO O－0.3s－CO－20s－CO
11	Rated short-circuit breaking times	times	30
12	Mechanical lifespan	times	10000
13	Permanent magnet mechanism control voltage	V	DC220
14	Secondary circuit 1min power frequency withstand voltage	KV	2

No.	Item	Unit	Data
1	Contact Opening Distance	mm	8.5±1
2	Contact Overtravel	mm	3.0±1
3	Opening speed	m/s	1.4±0.2
4	Closing speed	m/s	1.0±0.2
5	Phase to phase center distance	mm	210
6	Three phase opening and closing out-of-phase degree	ms	≤2
7	Conduction resistance of each phase circuit	μΩ	＜45
8	Closing time	ms	≤60
9	Openig time	ms	≤45
10	Weight	Kg	65
11	Size	mm	630x658x220
12	Mounting hole	mm	100x610(4-11x15)

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