Electrical Insulation System Components E75735
SABIC INNOVATIVE PLASTICS US L L C
SPECIALTY COMPONENTS & PRODUCTS, 1 PLASTICS AVE, PITTSFIELD MA 01201-3662
System Component System Designation System Class
451E(w), 471(w) GE-F 155(F)
Report Date: 1988-07-12 © 2026 UL LLC
An Authorization Letter is Required for Adoption of this System
Construction Details (Table I)
The use of this insulation system is limited to the combination of materials specified below. Where more than one item is designated under insulation function, they may be used together, unless otherwise indicated, or they may be used as alternates to one another. Functions designated "optional" are not necessarily required for every design. Insulation thicknesses and/or layers below indicated are minimum.
Enameled Wire
Recognized Component - Magnet wire (OBMW2), single build or greater, round or rectangular, copper or aluminum unless stated otherwise for the types listed below
Ground Insulation is required to separate this winding from grounded/dead metal
Interwinding Insulation is required to separate this winding from other enameled wire
Unless otherwise noted, Winding Wire types listed below may be used in combination within a single product
ANSI TypeTemp(°C)Basecoat(Topcoat)
MW 26or 155°CPolyester-imide
MW 27or 155°CPolyester-imide (Polyamide)
MW 30or 180°CPolyester-amide-imide
MW 35or 200°CPolyester-amide-imide (Polyamide-imide)
MW 73or 200°CPolyester-amide-imide (Polyamide-imide)
MW 74or 200°CPolyester-amide-imide
MW 76or 180°CPolyester-amide-imide (Polyamide)
MW 79or 155°CPolyurethane
MW 80or 155°CPolyurethane (Polyamide)
Ground and Interwinding Insulations
Designationmils(mm)comments
Arrow Specialties USA, LLC [E34739] - Recognized Component
Nomex® 4108 (0.2)
SABIC INNOVATIVE PLASTICS US L L C [E121562] - Recognized Component
Valox 451E(w), 471(w)30 (0.76)
Lead Wires
lead wires are optional for this system
TempInsulation
150°CSR - silicone rubber(with or without braid)
150°CEPDM - ethylene propylene diene monomer
150°CXLPE - crosslinked polyethylene
200°CSR - silicone rubber(with or without braid)
Minor Sheet Materials
(layer, outer, wrap etc.) minor sheet is optional for this system
Designationcomments
3M Innovative Paper Technologies
AraQuin
CeQuin 3000
CeQuin 500
CeQuin GeSat G, -IG, -IGI, -GIG
CeQuin I
CeQuin IF, IFI, FIF
CeQuin IG, IGI, GIG
CeQuin III
CeQuinbord 486 C Stage
CeQuinbord CEL SATwith or without epoxy
CeQuinbord Type 3
SoftQuin P
TufQuin 100, 110, 120
Cotrell Paper Co Inc.
Fish Paper
Rag Paper
COTTRELL PAPER CO INC [E41590] - employing Recognized materials
Copaco
Dupont -Teijin Films
Mylar
E. I. Dupont de Nemours & Co.
Nomex®
Essex
Polymat 100 DMD
Flexcon Industrial LLC (Alamotape)
Astromat NMN
Astrotherm 180 XMX
Astrotherm 200 XHX
Epoxy "B" stage coated Nomex 5
Estermat DM100
Estermat DM100 w/PSA
Estermat DM70
Estermat H CMC
FCMS-5
HS coated film-2
Kraft/Mylar/Kraft
Permatherm CM
Permatherm plus CVM5-2
PSA coated Nomex
RM
Riegel Products
65C Rise Paper
EB100 AE-C
EB100 AG-C
EB100 AZ-C
EB100 OR-C
Spaulding
Flexlam CMC
Flexlam DMD100
Flexlam NMN
Flexlam QM
Flexlam TMT
Von Roll USA, Inc.
5JF44varnish glass cloth
Memco 100 DMD
Pyroglas
Pyrolam 100X
Windsor-Stevens Inc.
Kraft Paper
any sheet insulation or tape described in this table with no minimum thickness requirement may be used as a minor sheet material
Tapes
tapes are optional for this system
Designationcomments
3M (Minnesota Mining & Mfg Co)
1174thermosetting rubber adhesive, polyester film/mat
1277thermosetting rubber adhesive, polyester film/mat
1278acrylic adhesive, paper/glass filament reinforced
1279
MR93thermosetting rubber adhesive, reinforced polyester film
MR95thermosetting rubber adhesive, polyester film/mat
MR96thermosetting rubber adhesive, reinforced polyester film
MR97rubber adhesive, polyester glass film
3M COMPANY [E17385] - Listed or Recognized Component
10 (a) *** this product is no longer Recognized ***
1169
1170
1194
1205
1245
1267
1291 (a) *** this product is no longer Recognized ***
1298 (b)
1318 clear (a)
1318-1 (a)
1318-2 (a)
1339
20 (a) *** this product is no longer Recognized ***
27 (a)
44 (a)
46
5
54 (a)
55
56 (a)
57 (a)
58 (a)
60
61
62
63
69 (a), 9 (a)
74 (a)
75
79
MR 94B (c)
Flouroglass (Mystik)
7000silicone adhesive, glass cloth
7001silicone adhesive, glass cloth
7020thermosetting rubber adhesive, solvent resistant
7021thermosetting rubber adhesive, solvent resistant
7100silicone adhesive, glass cloth
7300silicone adhesive, polyester film
7321thermosetting rubber adhesive, printable polyester film
7322rubber adhesive, polyester film
7323rubber adhesive, polyester film
7331silicone adhesive, polyester film
7341acrylic adhesive, polyester film
7343thermosetting acrylic adhesive solvent resistant, printable polyester film
7351thermosetting rubber adhesive polyester film
7352rubber adhesive polyester film
7355rubber adhesive polyester film
7361silicone adhesive, polyimide film
7362silicone adhesive, polyimide film
7367acrylic adhesive, solvent resistant
7452acrylic adhesive, aluminum foil backed
7453acrylic adhesive, aluminum foil backed
7455silicone adhesive, aluminum foil backed
7459silicone adhesive, glass cloth/aluminum foil
7503silicone adhesive, PTFE film
7505silicone adhesive, PTFE film
7510silicone adhesive, PTFE film
9710silicone adhesive, silastic impregnated glass cloth
Ideal Tape Co Inc
7180thermosetting silicone adhesive, polyester film
7190thermosetting silicone adhesive, polyester film
IDEAL TAPE CO INC [E82910] - Listed or Recognized Component
IT-700 (b)
IT-7007 (b)
IT-701 (b)
IT-7017 (b)
IT-702 (b)
IT-705
IT-7170 (c)
IT-7177
IT-720 (b)
IT-721
IT-724 (b)
IT-725
IT-7270
IT-730 (b)
IT-7300
IT-7307
IT-750 Natural (b)
IT-780 (b)
IT-7807 (b)
INTERTAPE POLYMER GROUP [E20780] - Listed or Recognized Component
4238 (16)*
4309 (6228)*
4426-00 (41)*
4428 (23)*
4429 (24)*
4616-00 (51)*
4617 (58)*
4618 (59)*
51579 (6161)
51580-00 (40)
51585 (6230)*
51586-00 (21)*
51587-04*
51588 (50)*
51589-00
51590-04*
51591 (250)*
51594
51599 (17)*
Intertape Polymer Group (Tesa, Tuck, Spinnaker)
264acrylic adhesive, polyester film
51587polyester film glass reinforced
6323silicone adhesive, glass cloth
Nitto Denko Corp
188
31acrylic adhesive, polyester film
315rubber adhesive, polyester film
316flame retardant acrylic adhesive, polyester film
340acrylic adhesive, polyester/non-woven film
380
NITTO DENKO CORP [E34833] - Listed or Recognized Component
350A
354
354E
360UL
Nitto Inc [E20392] - Listed or Recognized Component
P-212 (P-212L, P-212PL)
P-213, P-213S, EE-7240
P-221 (P-221L, P-221PL, 6379)
P-222 (P-222L, P-222PL, 6761)
P-223 (P-223 PL)
P-224 AMB (formerly P-224)
P-232 (P-232 CL)
P-242
P-243 (P-243 TAN)
P-246
P-247
P-252
P-253
P-254
P-255
P-256
P-258
P-259 (P-259 YEL)
P-262
P-263
P-280
P-281 (c) (P-281 BK (c))
P-286
P-421
P-422
P-423
P-430 NAT
P-440
Nitto Permacel
P-205semi-cured rubber adhesive, printable polyester film
P-206semi-cured rubber adhesive, printable polyester film
P-21thermosetting rubber adhesive, glass cloth
P-257thermosetting rubber adhesive, polyester film
SAINT-GOBAIN PERFORMANCE PLASTICS CORP [E51201] - Listed or Recognized Component
G565
G569 *** this product is no longer Recognized ***
K103A
K250A (d)
K350
M50
M54A
M60 *** this product is no longer Recognized ***
M705 *** this product is no longer Recognized ***
M706 (c) *** this product is no longer Recognized ***
M765 *** this product is no longer Recognized ***
M97 (b) *** this product is no longer Recognized ***
Saint-Gobain Performance Plastics Corp.
G540silicone adhesive, fiberglass
G551thermosetting rubber adhesive, glass cloth
G561silicone adhesive, fiberglass
G564silicone adhesive, fiberglass
K100double-sided silicone adhesive, polyimide film
K102acrylic adhesive, polyimide film
K104silicone adhesive, polyimide film
K250Xsilicone adhesive, polyimide film
M52silicone adhesive, polyester film
M56thermosetting rubber adhesive, polyester film
M57thermosetting rubber adhesive, polyester film
M64thermosetting rubber adhesive, polyester film
M66silicone adhesive, polyester film
M69acrylic adhesive, transparent polyester film
M730silicone adhesive, polyester film
M787rubber adhesive, polyester film
M99acrylic adhesive, polyester film
Core tubes and Bobbins
(for mechanical support only) cores are optional for this system
Designationcomments
Precision Paper Tube Co.
Kapton
Polyester Glass
Pyroform 310
Thermoform 700
Spacer and Wedges
spacer and wedges are optional for this system
Designationcomments
CELANESE INTERNATIONAL CORP - Florence [E41938] - employing Recognized materials
Rynite 530 (f1) (+), 530L (f1) (+)
Rynite 935 (f1)
Rynite FR945
Glastic Corp.
FHT
Poly (Dog Bone)
SG-200
TSFpolyester/glass
UTR
Haysite Reiinforced Plastics
EFMflexible, glass reinforced thermosetting polyester
EHCglass reinforced thermosetting polyester
ETS
H755NRMA GPO-1 155
HST-IIglass reinforced thermosetting polyester
HTFflexible, glass reinforced thermosetting polyester
National Vulcanized Fiber
Lamicor EG 873glass/epoxy
Lamicor G-11-861glass/epoxy
Lamicor G-5-813glass/melamine
Lamicor G-7-838glass/silicone
Lamicor G-9-818glass/melamine
Lamicor GP-200HP
Lamicor GP-9107glass/polyester
Lamicor GP-9206
Lamicor GP-9306
Lamicor LE 675fabric/phenolic
Lamicor XX 324paper/phenolic
Peerless 110vulcanixed fibre sheet
Resolite
Supersil Polyglas
Sabic Innovative Plastics
Valox 466
Valox 751
SABIC INNOVATIVE PLASTICS B V [E45329] - employing Recognized materials
Valox 310SE0(w)
Valox 325(f1)(w), 325C(f1)(w), 325F(f1)(w), 325M(f1)(w), 325MR(f1)(w)
Valox 451E(w)
any material described in this table with no thickness requirement may be used as a spacer or a wedge
Tubing and Sleeving
tubing and sleeving are optional for this system
Designationcomments
ATKINS & PEARCE INC [E15253] - Recognized Component
Ben Har ST
Ben Har ST 1250
Ex-Flex
Silverflex T&D
ATKINS & PEARCE INC [E63446] - Recognized Component
Acryflex F
Atkins & Pearce Inc.
1062A
1062B
Acrylflex Heavywall
Acrylflex Lightwall
Ben Har 1151-FR A
Ben Har 1151-FR C
Ben Har 1151-XL-200 A
Ben Har 1151-XL-200 C
Ben Har 1151-XL-220 A
Ben Har 1151-XL-240 A
Ben Har Acryl Apolyacrylate resin coated fiber glass
Ben Har Acryl C
Ben Har Acryl Superwallpolyacrylate resin coated fiber glass
Ben Har Acryl VPI
Ben Har Ex-Flex 1500
Ben Har Ultra Acryl A
Ben Har Ultra Acryl B
Ben Har Ultra Acryl C
Silverflex Unsaturated
Suflex Acryflex F VPI
Suflex Flexicone 200 A
Suflex Flexicone B
Suflex Flexicone C
Suflex Silicone Rubber Resin
Suflex Silicone Rubber Resin A
Suflex Silicone Rubber Resin C
Supergrade A+
Delfingen US-New York Inc
Flexite LM-145 shrinkdown
Flexite PO-135 shrinkdown
Flexite Spiral Cut TFE
Flexite TFE
NU-SLEEVE AG-155-B
NU-SLEEVE AG-155-C-1
NU-SLEEVE AG-155-C-2
NU-SLEEVE AG-155-C-3
NU-SLEEVE SG-200-C-1
DELFINGEN US-NEW YORK INC [E80713] - Recognized Component
NU-FLEX HT-1220
NU-FLEX HTS-520
NU-SLEEVE SG-200-B
NU-SLEEVE VG-130-B
DELFINGEN US-NEW YORK INC [E93101] - Recognized Component
NU Sleeve SG-200-A
NU-Sleeve AG-155-A
NU-Sleeve VG-130-A
Hilec/Delfingen US-New York Inc
Heat Treated (std)
Heat Treated-Saturated (std)1/32 in. wall
Hilec 200 Series
Hilec 300 Series
Hilec 400 Series
Hilec 500 Series
Hilec 600 Series
Hilec 700 Series
Hilec 800 Series
Turbo 117E A
Turbo 117E B
Turbo 117E C1
Turbo 117F A
Turbo 117F B
Turbo 117F C
Turbocryl A
Turbocryl B
Turbocryl C1
Turbocryl C2
Turbocryl C3
Turbotuf A
Turbotuf B
Varflex
Silflex
Type 2
VARFLEX CORP [E53690] - Recognized Component
Varglas 231, Varglas Viton 231
VARFLEX CORP [E63450] - Recognized Component
Varglas
Varglas Silicone Resin 500
Tie Cords
tie cords are optional for this system
Designationcomments
American Efird Inc.
LP 1126
LP 1552
LP 1556
M1491A
Atkins & Pearce Inc.
13-220
16-1
25-250
A4C1B1-S12
A4C1B1-S12C
A4C1B1-T6 CON
C-81104SG
MS 9023 HSUN-4
MS 9023-T4
MS 9044-T4
N884 LN346
Varflex
48silicone coated fiberglass
Western Filament
50DOF17W
DHS-1CL
Varnishes
varnishes are optional for this system
Designationcomments
ELANTAS North America, Inc [E75225] - Recognized Component
468-2 (d), 468-2FC (d), 468-2-7-xxF (d), 468-2-7FC-xxF (d)for use only with ANSI Type MW35 and MW74 magnet wire
82PR-083&, 82PR-083T&for use only with ANSI Type MW30, MW35, MW74, MW76, MW79 an MW80 magnet wire. Not valid for use with Varglas Silicon Resin 500 or XLPE 150 Lead Wire.
82PR-085&for use only with ANSI Type MW30, MW35, MW74, MW76, MW79 an MW80 magnet wire. Not valid for use with Varglas Silicon Resin 500 or XLPE 150 Lead Wire.
85PR-402&for use only with ANSI Type MW30, MW35, MW74, MW76, MW79 an MW80 magnet wire
87V-456, 77X-010, 77X-010Ffor use only with ANSI Type MW30, MW35, MW74, MW76, MW79 an MW80 magnet wire. Not valid for use with Varglas Silicon Resin 500 or XLPE 150 Lead Wire.
B-142-1*, B-142-2*, B-142-3*, B-142-10*for use only with ANSI Type MW30, MW35, MW74, MW76, MW79 an MW80 magnet wire
B-185-@for use only with ANSI Type MW26, MW30, MW35, MW74 an MW76 magnet wire
B-534+@,B-540@, BEI-914@, BEI-915@, S-300@, S-315@
B-535-@, B-535-5S, B-535-NB-2
B7-373-@&, B7-373 VT&, B7-373 VTC&, B7-373 VTC LV&for use only with ANSI Type MW30, MW35, MW74, MW76, MW79 an MW80 magnet wire
B7-606-@&, B7-606 DAPC&for use only with ANSI Type MW30, MW35, MW74, MW76, MW79 an MW80 magnet wire
B7-609-@, B7-639-@for use only with ANSI Type MW30, MW35, MW74, MW76, MW79 an MW80 magnet wire
C1525A, C1525F35, C1525G45for use only with ANSI Type MW35 and MW74 magnet wire
D-136AM, D136-AM-BLK, D136-AM-Grayfor use only with ANSI Type MW30, MW35, MW74, MW76, MW79 an MW80 magnet wire. Not valid for use with Varglas Silicon Resin 500 or XLPE 150 Lead Wire.
Isolite 793&, Isolite 793PC%&for use only with ANSI Type MW30, MW35, MW74 and MW76 magnet wire
Isolite 862%&for use only with ANSI Type MW30, MW35, MW74 and MW76 magnet wire
Isonel 31-398, Isonel 32RF, Isonel 31-863, Isonel 31-863X, Isonel 30for use only with ANSI Type MW30, MW35, MW74, MW75, MW79 and MW80 magnet wire. Not valid for use with Varglas Silicon Resin 500 or XLPE 150 Lead Wire.
Isonel 51, Isonel 51J, Isonel 51FCfor use only with ANSI Type MW30, MW35, MW74 and MW76 magnet wire
V1380, V1380FC, V1380FC Black, 80381FCfor use only with ANSI Type MW35 and MW74 magnet wire
V1630, V1630FS, V1630FS50, V1630FS Black, 80361, 80361FSfor use only with ANSI Type MW35 and MW74 magnet wire
WS-200, WS-200X, WS-200 Grey, WS-200X Grey, WS-268, Wat-A-Varfor use only with ANSI Type MW30, MW35, MW74, MW76, MW79 an MW80 magnet wire
Y-210, Y-210BLK, Y-210 BLACK, Y-210 Grey, Y-210PS Thermodur, EB 920for use only with ANSI Type MW30, MW35, MW74, MW76, MW79 an MW80 magnet wire
Y-543&, Y-543C&, Y-543FC&for use only with ANSI Type MW30, MW35, MW74, MW76, MW79 an MW80 magnet wire
ELANTAS ZHUHAI CO LTD [E314793] - Recognized Component
B-142-12*, B-520@
B-277-@
John C Dolph Co [E317427] - Recognized Component
AC-43, EB-43-HG, EB-43-FB, AC-43-66, EG-43/698-D, EG-43/759-D, ER-43/368-D, EB 43/387-Dfor use only with ANSI Type MW30, MW35, MW74, MW75, MW79 and MW80 magnet wire. Not valid for use with Varglas Silicon Resin 500 or XLPE 150 Lead Wire.
BC-346A, BC-346-A, BC-346B, BC-346-E, BB-348, BB-346-HF, BC-346HF, BG-346A, BB-346-A, BB-346/A, BC-370for use only with ANSI Type MW30, MW35, MW74 and MW76 magnet wire
CC-1105, CC-1105HTC, CC-1103, CC-1105OPT, CC-1105OPT/HTC, CC-1105LV, CB-1105HTC, PDR-1933, PDR-1711, CC-1155, CC-1156, CC-1106for use only with ANSI Type MW35 and MW74 magnet wire
CC-1122for use only with ANSI Type MW30, MW35, MW74 and MW76 magnet wire
PDR-1840, PDR-1874, PDR-1839, BC-363for use only with ANSI Type MW30, MW35, MW74 and MW76 magnet wire
KEMEK [E115954] - Recognized Component
K-73517, K-703, K-703A, K-703(a)C, K-73517(a)Cfor use only with ANSI Type MW79 an MW80 magnet wire. Not valid for use with Varglas Silicon Resin 500 or XLPE 150 Lead Wire.
K-9644# *** this product is no longer Recognized and may not be suitable for use in this system *** for use only with ANSI Type MW30, MW35, MW74, MW76, MW79 an MW80 magnet wire
K-9650, K-9637, K-9640, K-9661for use only with ANSI Type MW30, MW35, MW74, MW76, MW79 an MW80 magnet wire
K-9700 *** this product is no longer Recognized and may not be suitable for use in this system *** for use only with ANSI Type MW30, MW35, MW74 and MW76 magnet wire
VON ROLL USA INC [E73348] - Recognized Component
707#
712#for use only with ANSI Type MW35 and MW74 magnet wire. Not valid for use with Varglas Silicon Resin 500 or XLPE 150 Lead Wire.
74030, 111-537for use only with ANSI Type MW35 and MW74 magnet wire. Not valid for use with Varglas Silicon Resin 500 or XLPE 150 Lead Wire.
9637

© 2026 UL LLC