Atkore Unistrut & Marco Digital Catalogue

Cable Capacities

Fabrication Guide

30mm Depth Steel Wire Cable Tray

TABLES SHOWING APPROXIMATE CABLE CAPACITIES OF ALL STEEL WIRE CABLE TRAYS USING A 50% FILL RATIO MC30 APPROX CABLE CAPACITY UNDER NEC 50% RULE

NEC 50% RULE: AL- LOWABLE FILL AREA (mm 2 )

CAT5e 4-pr UTP (4.9mm diam)

CAT 6 4-pr UTP (6.5mm diam)

TOTAL FILL AREA (mm 2 )

CAT 6a 4-pr UTP (8.9 diam)

CABLE TRAY

MC3050

1400 2800 4200

700

37 74 111

21

11

MC30100 MC30150

1400 2100 2800 4200

42 63 84

23 34 45 68

MC30200 5600 MC30300 8400

148 223

127

55mm Depth Steel Wire Cable Tray

APPROX CABLE CAPACITY UNDER NEC 50% RULE

MC55

NEC 50% RULE: ALLOWABLE FILL AREA (mm 2 )

CAT5e 4-pr UTP (4.9mm diam)

CAT 6 4-pr UTP (6.5mm diam)

CAT 6a 4-pr UTP (8.9 diam)

CABLE TRAY

TOTAL FILL AREA (mm 2 )

MC5550

2600 5200 7800

1300

69

39 78

21

MC55100 MC55150

2600 3900 5200 7800 10400

138

42 63 84

207 276

118 157 235

MC55200 10400

MC55300

15600

414

125 167 188 209

MC55400 20800

552 620 689 827

313

MC55450

23400

11700

353 392 470

MC55500 26000 MC55600 31200

13000

15599.95

251

106mm Depth Steel Wire Cable Tray

APPROX CABLE CAPACITY UNDER NEC 50% RULE

MC106

NEC 50% RULE: ALLOWABLE FILL AREA (mm 2 )

CAT5e 4-pr UTP (4.9mm diam)

CAT 6 4-pr UTP (6.5mm diam)

CAT 6a 4-pr UTP (8.9 diam)

CABLE TRAY

TOTAL FILL AREA (mm 2 )

MC106100 MC106150 MC106200 MC106300 MC106400 MC106450 MC106500

10303 15452 20600 30903 41200 46348

5152

273 410 546 819

155

83

7726

233 310 466

124 166 248

10300 15452 20600

1092 1229 1366 1639

621

331

Allied Tube & Conduit 23174 26752 30900

698 776

373

51503

414

MC106600 617800

931

497

311

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