SynTherm® – Insulating Materials SynTherm® YT511 (metastar® YT511)

SynTherm® YT511 is a synthetic electrical insulating paper consisting of a non-calendered, aromatic polyamide fibride flock composition.

SynTherm® YT511 is a Class H (180 °C) insulating materials. Temperatures of up to 200 °C only slightly influence the electrical properties. The good mechanical properties can be extrapolated to significantly higher temperatures. Due to the polymer structure SynTherm® YT511 can also be used a low temperature of up to -190 °C. It has a very high short-term dielectric strength.

SynTherm® YT511 is compatible with all common classes of resins, varnishes, adhesives and transformer liquids, lubricants and cooling agents. Commonly used solvents may lead to minor, reversible expansion. SynTherm® YT511 paper is of low flammability (UL 94V-0) and very high resistance to beta and gamma radiation

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Application

High-quality SynTherm® YT511 is used as electrical insulating material in almost any known application. Used in AC and DC motors, large generators, liquid-immersed and dry transformer, and chokes, even when exposed to beta and gamma radiation.

Standards

  • Insulating material Class H (180 °C)
  • UL listed (RTI mech. + electr. 210 °C)
  • UL file no. E358562
  • RoHS compliant acc. to 2011/65/EU

Delivery forms

Film thickness in μm:
130, 180, 250, 380, 580

SynTherm® YT511 is available:
-  tapes:  depending on material thickness on request
Beginning at 6mm (thin materials)
- rolls:     1030 mm

Feathering:
- depth approx. 1 - 12 mm, distance approx. 1 - 10 mm
- 10 mm to 240 mm width, material thickness on request

Base

Non-calendered, aromatic polyamide flock composition

Technical data

Typical mechanical properties
Property Unit of measure           Test standard 
Nominal thickness  µm  130 180 250 380 580  
Typical thickness  µm  130 170 250 390 570 GB/T451.3-2002
Specific weight  g/m²  42 64 82 155 200 GB/T451.2-2002
Density  g/cm³  0.31 0.37 0.32 0.39 0.35  
Tensile strength longitudinal  N/cm  25 40 60 145 170 GB/T12914-2008
Tensile strength transversal  N/cm  13 21 32 68 85 GB/T12914-2008
Elongation at break longitudinal  3.3 3.7 4.5 5.5 6.0 GB/T12914-2008
Elongation at break transversal  4.5 5.0 5.5 6.5 7.0 GB/T12914-2008
Shrinkage at 240 °C longitudinal  0.4 0.4 0.4 0.4 0.4 IEC60819-2:2002
Shrinkage at 240 °C transversal  0.2 0.2 0.2 0.2 0.2 IEC60819-2:2002
Elmendorf tear strength longitudinal  1.2 1.8 2.0 4.5 8.5 GB/T455-2002
Elmendorf tear strength transversal  1.8 3.0 3.5 7.0 9.0 GB/T455-2002
Typical electrical properties
Property Unit of measure           Test standard 
Nominal thickness  μm  130 180 250 380 580  
Field intensity  kV/mm  9 9 8 8 7 GB/T1408.1-2006
Dielectric constant at 60 Hz    1.3 1.3 1.3 1.4 1.4 GB/T1409-2006