Okonite Type ITC/PLTC Armored Type ITC/PLTC Armored Thermocouple Extension Cable

A Solid Thermocouple Alloy Conductor

B Okoseal Insulation

C Twisted Pair

D Communication Wire

E Aluminum/Synthetic Polymer Tape

F Tinned Stranded Copper Drain Wire

G Rip Cord

H Inner Okoseal Jacket

J Galvanized Steel Interlocking Loxarmor

K Outer Okoseal Jacket

Specifications
Conductors: Solid alloys per ANSI MC 96.1.

Insulation: Flame-retardant Okoseal^® (PVC) per UL Standard 13 and 2250, 15 mils nominal thickness, 105C temperature rating.

Conductor Identification: Pigmented insulation on individual conductors negative conductor numerically printed for group identification.

Communications Wire: 22 AWG, solid bare copper conductor, 12 mils nominal flame-retardant Okoseal insulation, 105°C temperature rating.

Assembly: Pairs assembled with left-hand lay. Flame-retardant, non-wicking fillers included where required to provide a round cable.

Cable Shield: Aluminum/Polyester tape overlapped to provide 100% coverage, and a 7-strand tinned copper drain wire, same size as the conductor.

Inner Jacket: Color-coded, flame-retardant Okoseal per UL Standard 13 and 2250. A rip cord is laid longitudinally under the jacket to facilitate removal.

Wire Armor: A serving of soft annealed galvanized steel wires, SWA, applied with a left-hand lay and 90% minimum coverage.

Outer Jacket: Color-coded, flame-retardant Okoseal per UL Standard 13 and 2250.

Classification: UL Listed as Type ITC/PLTC - Instrumentation Tray Cable/Power Limited Tray Cable for use in accordance with Articles 725 and 727 of the National Electrical Code.

The cables comply with UL 2250 and UL Subject 13 for CL2 and CL3.

Applications
Okonite SWA Type P-OS (Pair/triad - Overall Shield) Thermocouple Extension cables are designed for use as instrumentation and process control cables in ITC non-classified or labeled circuits up to 150 volts and 5 amps (750VA) and in Class 2 or 3 Power-Limited circuits where shielding against external interference is required, but shielding against interference among groups is not required; indoors or outdoors; in wet or dry locations with conductor operating temperatures up to 105°C; in cable trays; in raceways; supported by a messenger wire; under raised floors; for direct burial. Suitable Class I, Division 2, Class II, Division 2, or Class III, Division 2 hazardous locations. Also for use as Power-Limited fire protective signaling cable (FPL) per NEC Code 760.

Product Features

Passes flame tests for use in cable tray.
Sunlight Resistant.
Oil Resistant.
Excellent electromagnetic shielding.
Individual pairs are numbered and color coded for simplified hook-up.
Good noise rejection.
Communication wire included in each cable for voice communication
during installation or instrument calibration.
Excellent longitudinal strength.
Excellent cut-through resistance.
OSHA Acceptable.
Meets IEC/BS Specification.
Suitable for low temperature installation to -40°C.

Conductors: 20 AWG - Okoseal Insulation: 15 mils

1-ASA/ISA Type
2-Catalog Number
3-Number of Pairs
4-Inner Jacket Thickness - mils
5-Inner Jacket Nominal O.D. - (In.)
6-Armor Wires - No. x SWG

7-Nominal Armor O.D. - Inches
8-Outer Jacket - mils
9-Nominal Cable O.D. - (In.)
10-Cross-Sectional Area † (sq in)
11-Approx Net Weight (lbs/1000’)
12-Approx Ship Weight (lbs/1000’)

1	2	3	4	5	6	7	8	9	10	11	12
EX	284-20-8104 284-20-8108 284-20-8110	4 8 10	40 50 50	.38 .50 .60	32 x 20 31 x 18 29 x 16	.45 .59 .73	40 50 50	.54 .70 .84	.23 .38 .55	236 412 588	260 451 627
	284-20-8112 284-20-8116 284-20-8120	12 16 20	50 60 60	.59 .67 .72	36 x 18 32 x 16 34 x 16	.69 .80 .84	50 60 60	.80 .93 .98	.50 .68 .75	506 726 801	545 790 865
	284-20-8124 284-20-8136 284-20-8150	24 36 50	60 70 70	.80 .91 1.06	30 x 14 34 x 14 30 x 12	.96 1.07 1.27	60 70 70	1.09 1.23 1.42	.93 1.19 1.58	1042 1300 1831	1122 1406 1947
JX	284-20-8204 284-20-8208 284-20-8210	4 8 10	40 50 50	.38 .50 .60	32 x 20 31 x 18 29 x 16	.45 .59 .73	40 50 50	.54 .70 .84	.23 .38 .55	235 410 586	259 449 625
	284-20-8212 284-20-8216 284-20-8220	12 16 20	50 60 60	.59 .67 .72	36 x 18 32 x 16 34 x 16	.69 .80 .84	50 60 60	.80 .93 .98	.50 .68 .75	504 723 797	543 787 861
	284-20-8224 284-20-8236 284-20-8250	24 36 50	60 70 70	.80 .91 1.06	30 x 14 34 x 14 30 x 12	.96 1.07 1.27	60 70 70	1.09 1.23 1.42	.93 1.19 1.58	1037 1292 1821	1117 1398 1937
KX	284-20-8304 284-20-8308 284-20-8310	4 8 10	40 50 50	.38 .50 .60	32 x 20 31 x 18 29 x 16	.45 .59 .73	40 50 50	.54 .70 .84	.23 .38 .55	230 412 588	260 451 627
	284-20-8312 284-20-8316 284-20-8320	12 16 20	50 60 60	.59 .67 .72	36 x 18 32 x 16 34 x 16	.69 .80 .84	50 60 60	.80 .93 .98	.50 .68 .75	506 726 801	545 790 865
	284-20-8324 284-20-8336 284-20-8350	24 36 50	60 70 70	.80 .91 1.06	30 x 14 34 x 14 30 x 12	.96 1.07 1.27	60 70 70	1.09 1.23 1.42	.93 1.19 1.58	1042 1300 1831	1122 1406 1947
TX	284-20-8404 284-20-8408 284-20-8410	4 8 10	40 50 50	.38 .50 .60	32 x 20 31 x 18 29 x 16	.45 .59 .73	40 50 50	.54 .70 .84	.23 .38 .55	237 414 590	261 453 629
	284-20-8412 284-20-8416 284-20-8420	12 16 20	50 60 60	.59 .67 .72	32 x 18 32 x 16 34 x 16	.68 .80 .84	50 60 60	.79 .93 .98	.49 .68 .75	506 730 805	545 794 869
	284-20-8424 284-20-8436 284-20-8450	24 36 50	60 70 70	.80 .91 1.06	30 x 14 34 x 14 30 x 12	.96 1.07 1.27	70 70 70	1.11 1.23 1.42	.97 1.19 1.58	1068 1307 1841	1148 1413 1957

ASA/ISA COLOR CODE AND LIMITS OF ERROR
ASA/ISA Type	Positive Wire		Negative Wire		Outer Jacket Color	Temperature Range°C	Limits of Error		Wire Size (AWG)	Nom. Loop Resistance Per 100’ @ 20°C
ASA/ISA Type	Alloy	Color	Alloy	Color	Outer Jacket Color	Temperature Range°C	Standard	Special (1)	Wire Size (AWG)	Nom. Loop Resistance Per 100’ @ 20°C
EX	Chromel	Purple	Constantan	Red	Purple	0 to 200°C	± 1.7°C	—	20	70.7 ohms
JX	Iron	White	Constantan	Red	Black	0 to 200°C	± 2.2°C	± 1.1°C	20	35.7 ohms
KX	Chromel	Yellow	Alumel	Red	Yellow	0 to 200°C	± 2.2°C	—	20	59.0 ohms
TX	Copper	Blue	Constantan	Red	Blue	-60 to 100°C	± 1.0°C	± 0.5°C	20	29.8 ohms

SX available upon request.

(1) Special grade alloy conductors for JX and TX are available on special order.

† Cross-sectional area for calculation of cable tray fill in accordance with NEC Section 318-8

Aluminum Loxarmor available on special order.

Length Tolerance: Cut lengths of 1000 feet or longer are subject to a tolerance of ± 10%; less than 1000 feet ±15%.


ELECTRICAL SPECIFICATIONS
Per UL Standard 2250

Insulation Test Voltage (spark test)...............................5000 Volts ac
Dielectric Test Voltage................................1500 Volts ac for 15 sec.
Shield Isolation Test                                                                            
Pair to Cable Shield..........................exceeds 100 Megohms/1000 ft.
Insulation Resistance Constant @60°F, minimum                                 
(natural material typical value).............................2000 Ohms-1000 ft.