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SGS-70 Silicone Fiberglass Sleeving — 7000 V (Class A)

Silicone Fiberglass Sleeving · WCW source-manufactured, UL documented.

−60 °C to +200 °C (−76 ~ 392 °F)7000 V avg · 5000 V minUL 1441 · E233803UL VW-1

SGS-70 is the flagship Class A grade: 7000 V average withstand, 5000 V minimum individual. This is the grade behind the “up to 50 kV” series capability when used in multi-layer or series-stacked configurations, and the first choice wherever the highest single-wall dielectric is mandatory.

Test standardUL 1441
Operating temperature−60 °C to +200 °C (−76 ~ 392 °F)
Dielectric (avg. withstand)7000 V
Dielectric (min. individual)5000 V
UL recognitionUL 1441, File E233803
Flame ratingUL VW-1

Datasheet: full ratings & dimension tables · download PDF

Built for: EV and industrial motor windings, HV harness sections, battery pack interconnects and any design that specifies the highest certified single-wall dielectric.

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SGS-70 Silicone Fiberglass Sleeving by WCW

Inner Diameter & Wall Thickness

Inner DiameterTolerance7000 V (Class A)4000 V (Class B)Class C & D
0.5 – 2.0 mm+0.20 / −0.00 mm0.45 ± 0.05 mm0.40 ± 0.05 mm0.35 ± 0.05 mm
2.5 – 3.0 mm+0.25 / −0.00 mm0.50 ± 0.05 mm0.40 ± 0.05 mm0.35 ± 0.05 mm
3.5 – 5.0 mm+0.35 / −0.00 mm0.55 ± 0.05 mm0.50 ± 0.05 mm0.42 ± 0.05 mm
6.0 – 9.0 mm+0.50 / −0.00 mm0.60 ± 0.05 mm0.55 ± 0.05 mm0.45 ± 0.05 mm
10.0 – 12.0 mm+0.70 / −0.00 mm0.65 ± 0.05 mm0.55 ± 0.05 mm0.53 ± 0.05 mm
13.0 – 20.0 mm+0.80 / −0.00 mm0.70 ± 0.05 mm0.60 ± 0.05 mm0.56 ± 0.05 mm
22.0 – 35.0 mm+0.90 / −0.00 mm1.05 ± 0.05 mm1.00 ± 0.05 mm0.70 ± 0.05 mm
Other grades in this family: SGS-15 · SGS-25 · SGS-40 — or see the full series datasheet.

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Send these five details with your inquiry and we will reply with a recommended series, sample plan and datasheet:

  1. ID & size (mm)
  2. Continuous operating temperature
  3. Voltage / dielectric requirement
  4. Medium exposure (oil, coolant, solvent)
  5. Certification needs (UL 1441, RoHS, REACH)