SynCon® – Connecting Cables & Transformer Terminals SynCon® TRK 2.5-Si and TRK 4-SL

TRK terminals can be selectively snap mounted on the 2 x 10 mm or 2 x 35 mm mounting rail and bobbins withintegrated mounting compartments. In addition to the groundterminal block, all insulation housings have a covering flap. Thisreveals the lateral open solder hook to facilitate the insertion andsoldering of winding ends and subsequent fingerproof covering in compliance with VBG 4. This type covers the cross-sectional range up to 10mm². With the exception of the TRK 10, the terminals are availablewith screw or screw and slip-on connections.

The TRK 4-SL yellow/green ground terminal block can beharmoniously connected to the remaining terminal types. It isscrewed to the laminated core together with the mounting rail.

All TRK terminals are designated with the marker pin BN-TRK.

Download datasheet


Technical drawing
TRK 2,5-Si
TRK 4-SL

Delivery forms

50 pieces per package

Technical data

Technical data
Property Unit of measure TRK 2.5-Si  TRK 4-SL 
Design    5x20 and 5x25  
Data in accordance with IEC / DIN VDE       
Rated cross section  mm²  2.5 4
Max. Strombelastbarkeit  6,3 depending on SI  
Rated voltage  only possible with transformer  
Rated insulation voltage  250  
Rated surge voltage / Contamination class  kV / -  4/3 8 / 3
Surge voltage category/Insulation material group    III / I III / I
Nominal data acc. to CSA
Property Unit of measure TRK 2.5-Si  TRK 4-SL 
Rated voltage  250  
Nominal current  6.3  
AWG  kcmil  18-14 18-12
Nominal data acc. to UL
Property Unit of measure TRK 2.5-Si  TRK 4-SL 
Nominal current  8  
AWG  kcmil  22-12  
Rated voltage  300  
Connection data
Property Unit of measure TRK 2.5-Si  TRK 4-SL 
Strand cross section rigid min  mm²  0.75 0.75
Strand cross section rigid max  mm²  2.5 4
Strand cross section flexible min  mm²  1 1
Strand cross section flexible max  mm²  2.5 4
Strand cross section with AEH min  mm²  0.75 0.75
Strand cross section with AEH max  mm²  2.5 2.5
2 strands equal cross section rigid min  mm²  0.75 0.75
2 strands equal cross section rigid max  mm²  2.5 4
2 strands equal cross section flexible min  mm²  1 1
2 strands equal cross section flexible max  mm²  2.5 4
2 strands equal cross section with TWIN-AEH min  mm²  0.5 0.5
2 strands equal cross section with TWIN-AEH max  mm²  1 1.5
Number of connections    2 2
Connection type    screw connection screw connection
Stripping length  mm  11 11
Thread    M4 M4
Torque  Nm  1.0-1.2 1.5-1.8
Material data
Property TRK 2.5-Si  TRK 4-SL 
Insulation material  PA PA
Inflammability class acc. to UL 94  V2 V2
Contact surface  tin-plated tin-plated
Description
Property TRK 2.5-Si  TRK 4-SL 
Colour  TRKS 2.5-SI GY green-yellow
Colour  grey, orange TRK 4-SL
Colour  TRKS 2.5-SI-OG