Application for replacing Tyco VX-SB subscribe connector unit terminal blocks,Connecting 1 pair module without protection,module with surge protection (gas-discharge instrument with surge protection to 230V) and module with overvoltage and overcurrent (overvoltage to 230V, and by two resistors PTC, which protect from the overcurrent).

The terminal block of connection consists of housing and cover of rectangular form, and also 5- polar unit of connection, fixed on the housing. Cover is fixed beyond the axis common with the housing; however, it can be isolated from the housing for guaranteeing the convenience in the work due to the squeezed conditions. The introduction of wires is accomplished through the detachable stuffing boxes, which ensure the possibility of applying the wires of different sizes. Fastening wires is accomplished by the metallic screws, located inside the unit of connection.

Specifications Contact characteristics

Drop wire connector:

Gauge range ......................... 0.4 to 1.0mmφ      insulation diameter:..........................................5.0mm maxφ

Pair connector:

Gauge range ........................... 0.4 to 1.0mmφ     insulation diameter:.........................................3.0mm maxφ

Current conducting capacity

20A 10Aper connector for 10 minutes at least without causing deformation of the module( if ＞20A up to30Ais required, this is possible using a different GDT)

Insulation resistance

Dry atmesphere ........................................................................................................................＞10¹²Ω

Damp atmesphere(ASTMD618)  ........................................................................................＞10¹²Ω

Salt fog(ASTMB117) ...............................................................................................................＞10¹²Ω

Immersion in water(15 days in 3% NaCi solution) ......................................................＞10¹²Ω

Contact resistance

R_Material+R_{bridge contacts}+R_{wire contacts} ................................................................＜10mΩ

Increase in contact resistance

After climatic tests  ...................................................................................................................＜2.5mΩ

After 50 reinsertions..................................................................................................................＜2.5mΩ

Dielectric strength ......................................................................................................................＞3000 Vdc for 1 minutes

Mechanical characteristics

Pair/drop qire housing screw ....................................................... Special passivated direct+lacquered zamac alloy

Drop wire housing body .................................................................................................. Transparent polycarbonate

Body ......................................................................................................................... V0 glass-fiber reinforced polycarbonate

Insertion contacts ................................................................................................ Tinned phosphor bronze

Ground contacts ..................................................................................................Cu-Zn-Ni-Ag alloy

Lower sealant ........................................................................................................ Epoxy resin

Upper cable sealant ............................................................................................Silicone filled

Pair/drop wire bearing cover ............................................................................Polycarbonate

Plug-in module body ...........................................................................................V0 glass-fiber reinforced polycarbonate

Plug-in module sealant ...................................................................................... Gel

“O”-ring  ..............................................................................................................EPDM

Spring .......................................................................................................................Stainless steel

Cable/drop wire membrance........................................................................... Thermoplastic rubber