UL & CTI Rating for Nelco Materials

UL File Number: E36295

Material Designation ANSI Type CTI Rating
N4105-7 FR-4.0 2
N4105-6, N4105-6 FC FR-4.0 2
N4105-11, N4105-29 FR-4.0 3
N4103-12 FR-4.0 3
N4103-13, N4103-13EP FR-4.0 3
N4^^-13 RF FR-4.0 3
N4800-20 3
Meteorwave Family, M-Ply 3
N5103-30, N5203-30 GPY 2
N5103-32, N5203-32 GPY 2
N5105## 4
N8105##, N8205## 4
N7101-1, N7201-1 GPY 4
N7105-2 V0, N7205-2 V0 4
N9000 – MY##, NY##, MX##, NX##, MH##, NH## 0
Mercurywave 9350 2

Comparative Tracking Index (CTI)
Expressed as that voltage which causes tracking on a material after 50 drops of 0.1 percent ammonium chloride solution has fallen. The results of testing the nominal 1/8 inch (3mm) thickness are considered representative of the materials performance in any thickness.

CTI Range Tracking Index (in volts) CTI Rating
> 600 and greater 0
> 400 and up to 600 1
> 250 and up to 400 2
> 175 and up to 250 3
> 100 and up to 175 4
>Less than 100 5