Okonite Type SP-OS Type ITC/PLTC Instrumentation Cable

	Product Data Section 5: Sheet 13
Type SP-OS Type ITC/PLTC Instrumentation Cable Multiple Shielded Pairs or Triads - Overall Shield 300 Volts - 105°C Rating For Cable Tray Use

A Bare Stranded Copper Conductor

B Okoseal Insulation

C Tinned Stranded Copper Group Drain Wire

D Aluminum/Polyester Tape

E Twisted, Shielded Pairs/Triads

F Communication Wire

G Aluminum/Polyester Tape

H Tinned Stranded Copper Drain Wire

J Rip Cord

K Black Okoseal Jacket

Specifications
Conductors: Bare soft annealed copper, Class B, 7-strand concentric per ASTM B-8.

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

Conductor Identification: Pigmented black and white in pairs, black, red and white in triads; white conductor numerically printed for group identification.

Group Shield: Aluminum/Polyester tape overlapped to provide 100% coverage, and a 7-strand tinned copper drain wire, two sizes smaller than the conductor. All group shields are completely isolated from each other.

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

Assembly: Pairs or triads assembled with a 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 conductor.

Jacket: Black, flame-retardant, low temperature Okoseal per UL Subject 13 and 2250. A rip cord is laid longitudinally under the jacket to facilitate removal.

Classifications: UL Listed as ITC/PLTC - Instrument Tray Cable/Power Limited Tray Cable for use in accordance with Article 727 and Article 725 of the National Electrical Code.

Cables comply with UL 2250 and UL 13 for PLTC, CL2 and CL3.

Applications
Okonite^® Type SP-OS (Pair/triad - Individual and Overall Shield) instrumentation cables are designed for use as instrumentation, process control, 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 maximum shielding against external interference is required, as well as shielding among groups, particularly where the cable may be subject to abnormally high current or voltage interference; 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.

The isolated individual shields over each pair, when properly grounded, prevent crosstalk or capacitive coupling between adjacent pairs which occurs with ac signals, particularly the pulse type.

The overall shield eliminates most of the static interference from the electrical field radiated by power cables and other electrical equipment.

For dc service in wet locations, X-Olene^® insulation is recommended.

Product Features

Passes the UL 13 and IEEE 383-1974 vertical tray flame tests.
Passes IEEE 1202-1991 vertical tray flame test (4 pr #18 & larger).
Sunlight & oil resistant.
UL listed for direct burial (4/C #20 AWG or 2/C #18 and larger).
Individual pairs or triads are completely isolated.
100% shield coverage for reduced electromagnetic noise pick-up.
Good external noise rejection.
Excellent weathering characteristics.
OSHA Acceptable.
Flexible, easy to handle and terminate.
Communication wire included in each cable for voice communication during installation or instrument calibration.
Suitable for low temperature installation of -40°C.

Okoseal Insulation: 15 mils

1-Catalog Number 2-Strand Size (AWG) 3-Insulation Thickness (mils) 4-Number of Pairs 5-Number of Triads					6-Jacket Thickness-mils 7-Nominal Cable O.D. - Inches 8-Cross-Sectional Area † (sq in) 9-Approx Net Weight (lbs/1000’) 10-Approx Ship Weight (lbs/1000’)
1	2	3	4	5	6	7	8	9	10
261-10-2202 261-10-2204 261-10-2206	20(7X)	15	2 4 6		40 50 50	0.35 0.42 0.51	0.10 0.15 0.20	63 103 138	74 126 161
261-10-2208 261-10-2210 261-10-2212			8 10 12		50 60 60	0.53 0.66 0.66	0.25 0.34 0.37	169 219 248	193 258 287
261-10-2216 261-10-2220 261-10-2224			16 20 24		60 60 70	0.76 0.82 0.90	0.45 0.53 0.69	311 374 457	350 413 521
261-10-2236 261-10-2250			36 50		70 70	1.06 1.23	0.88 1.19	632 845	696 951
261-15-2204 261-15-2208 261-15-2212				4 8 12	50 50 60	0.48 0.62 0.77	0.18 0.30 0.47	126 212 314	149 236 353
261-15-2216 261-15-2224 261-15-2236				16 24 36	60 70 70	0.79 0.99 1.11	0.49 0.77 0.97	397 587 825	436 651 905
261-10-3302 261-10-3304 261-10-3306	18(7X)	15	2 4 6		50 50 50	0.38 0.47 0.57	0.11 0.19 0.25	89 133 181	112 156 205
261-10-3308 261-10-3310 261-10-3312			8 10 12		50 60 60	0.56 0.73 0.69	0.29 0.42 0.44	223 289 330	247 328 369
261-10-3316 261-10-3320 261-10-3324			16 20 24		60 70 70	0.83 0.94 0.98	0.54 0.69 0.85	417 523 614	456 587 678
261-10-3336 261-10-3350			36 50		70 80	1.14 1.42	1.11 1.58	861 1188	941 1294
261-15-3304 261-15-3308 261-15-3312				4 8 12	50 60 60	0.52 0.68 0.83	0.23 0.41 0.57	165 301 425	188 340 464
261-15-3316 261-15-3324 261-15-3336				16 24 36	60 70 70	0.89 1.10 1.24	0.62 0.95 1.21	543 804 1143	607 884 1249
261-10-4402 261-10-4404 261-10-4406	16(7X)	15	2 4 6		50 50 60	0.43 0.51 0.66	0.17 0.23 0.34	116 179 260	130 203 299
261-10-4408 261-10-4410 261-10-4412			8 10 12		60 60 60	0.68 0.82 0.81	0.40 0.53 0.57	323 397 456	362 436 520
261-10-4416 261-10-4420 261-10-4424			16 20 24		70 70 70	0.94 1.06 1.10	0.75 0.88 1.07	600 729 860	664 809 940
261-10-4436 261-10-4450			36 50		80 80	1.37 1.57	1.47 1.93	1250 1687	1356 1830
261-15-4404 261-15-4408 261-15-4412				4 8 12	50 60 70	0.55 0.74 0.93	0.26 0.48 0.74	227 418 615	251 457 679
261-15-4416 261-15-4424 261-15-4436				16 24 36	70 80 80	1.02 1.27 1.43	0.82 1.27 1.61	788 1167 1668	852 1273 1784

Authorized stock item. Available from our Customer Service Centers.

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

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 Subject 13 & 2250
Conductor Resistance, nominal..................ohms/1000 ft. @20°C
20 AWG..................................................................10.4
18 AWG....................................................................6.5
16 AWG.....................................................................4.1
Insulation Test Voltage (spark test).......................5000 Volts ac
Dielectric Test Voltage.........................1500 Volts ac for 15 sec.
Insulation Resistance Constant @60°F, minimum                          
(natural material typical value)...............2,000 Megohms-1000 ft.
Loop Resistance, nominal (2 conductor) ohms-1000 ft. @20°C     
20 AWG................................................................20.8
18 AWG................................................................13.0
16 AWG..................................................................8.2
Mutual Capacitance (PF/ft.)*                                                        
20 AWG...................................................................59
18 AWG...................................................................68
16 AWG...................................................................76
*Typical Value

C/05030513

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