Vacuum Interrupters for Isolating Switches

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Update Time:2013-11-25Vacuum Interrupters for Isolating Switches

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Product Name:Vacuum Interrupters for Isolating Switches

Item No:TF-12/630-20B

Description:
The Interrupter adopts “one shut technology”, ceramic shell, CuWC as the contact material;is characterized by high insulation, low stop-flow, strong blowout ability , long life, smallsize etc, and has advantages as easy to maintain, no explosion risk ,pollution-free and lownoise etc. Contactors assembled by it are used to control and protect the electricity transmission and distribution system in electrical, mechanical, chemical, metallurgy, mining and railway department, especially in frequent operation fields.

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TF-12/630-20B Product Introduce


Technical parameters
Rated Voltage (kV) 12
Rated Current (A) 630
Rated Make Current (kA/Times) 20/4
Rated Break Current (kA/Times)
Maximum Break Current (kA/Times)
Rated Short Time Withstand Current/Last Time (kA/s) 20/4
Break Times Under Rated Current (AC-4)
Short Time (1Min)Power Frequency Withstand Voltage (kV) 42
Thunder and Lighting Shock (kV)
Circuit Resistance under Rated Contact Pressure(μΩ) =60
Mechanical Life (Times) 1*104
Contact Force at Rated Contact Gap (N) 70±20
Max Contact Gap (mm) 13
Reaction Force at Rated Contact Distance (N) 110±20
Contact Erosion Limit (mm) 3
Weight (kg)
Store Duration (Year) 20
Mechanical Parameter Rated Contact Gap (mm) 8±1
Contact Overtravel (mm) 3±1
Average Break Speed (m/s) 1±0.2
Average Make Speed (m/s) 0.6±0.2
Rated Contact Operating Pressure (N) 1000±100
Contact Make Bounce Time (ms) =3
Three-phase Synchronism (ms) =1


outline drawing