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Sentron Busway Systems<br />

End Tap Boxes<br />

Revised on 04/30/18<br />

Selection<br />

End tap boxes are non-fusible devices used to connect cable and conduit to the end of a<br />

busway run or where busway runs connect without the need for over-current protection. End<br />

tap boxes may be installed at the end or beginning of a run. Vertical end tap boxes and<br />

horizontal end tap boxes can be installed in both horizontal and vertical applications. Extended<br />

end tap boxes are available if the application requires additional wire bending space. One joint<br />

stack assembly is shipped with each end tap box.<br />

Standard and Extended Horizontal End Tap Boxes, Dimensions<br />

Cable Lugs<br />

Dimensions Inches (mm) Wire Bend Space Per Phase & Neutral Ground<br />

Ampere Rating “A” “B” Std. “B” Ext. “C” Std. “C” Ext. Qty. Size Lugs a<br />

AL L-Rated<br />

225 — 13 (330) 30 (762) 34 (863) 17 (432) 21 (533) 1 a 1<br />

400 — 13 (330) 30 (762) 34 (863) 17 (432) 21 (533) 1 b 1<br />

600 — 13 (330) 30 (762) 34 (863) 17 (432) 21 (533) 2 b 1<br />

800 400 13 (330) 30 (762) 34 (863) 17 (432) 21 (533) 3 b 1<br />

1000 600 13 (330) 30 (762) 34 (863) 17 (432) 21 (533) 4 b 1<br />

1200 800 18 (457) 33 (838) 37 (940) 20 (508) 24 (610) 4 b 1<br />

1350 1000 18 (457) 33 (838) 37 (940) 20 (508) 24 (610) 4 b 1<br />

1600 1200 18 (457) 33 (838) 37 (940) 20 (508) 24 (610) 5 b 1<br />

2000 1350,1600 18 (457) 33 (838) 37 (940) 20 (508) 24 (610) 6 b 2<br />

2500 2000 27 (686) 33 (838) 37 (940) 20 (508) 24 (610) 8 b 2<br />

3000 2500 27 (686) 33 (838) 37 (940) 20 (508) 24 (610) 9 b 2<br />

3200 2000 27 (686) 33 (838) 37 (940) 20 (508) 24 (610) 9 b 2<br />

4000 3000,3200 29 (737) 33 (838) 37 (940) 20 (508) 24 (610) 12 b 3<br />

CU M-Rated<br />

225 — 13 (330) 30 (762) 34 (863) 17 (432) 21 (533) 1 a 1<br />

400 — 13 (330) 30 (762) 34 (863) 17 (432) 21 (533) 1 b 1<br />

600 — 13 (330) 30 (762) 34 (863) 17 (432) 21 (533) 2 b 1<br />

800 400 13 (330) 30 (762) 34 (863) 17 (432) 21 (533) 3 b 1<br />

1000 — 13 (330) 30 (762) 34 (863) 17 (432) 21 (533) 4 b 1<br />

1200 600 13 (330) 33 (838) 37 (940) 20 (508) 24 (610) 4 b 1<br />

1350 800 13 (330) 33 (838) 37 (940) 20 (508) 24 (610) 4 b 1<br />

1600 1000 18 (457) 33 (838) 37 (940) 20 (508) 24 (610) 5 b 1<br />

2000 1200,1350 18 (457) 33 (838) 37 (940) 20 (508) 24 (610) 6 b 2<br />

— 1600 18 (457) 33 (838) 37 (940) 20 (508) 24 (610) 5 b 1<br />

2500 2000 18 (457) 33 (838) 37 (940) 20 (508) 24 (610) 8 b 2<br />

3000 — 27 (686) 33 (838) 37 (940) 20 (508) 24 (610) 9 b 2<br />

3200 — 27 (686) 33 (838) 37 (940) 20 (508) 24 (610) 9 b 2<br />

4000 2500,3000,3200 27 (686) 33 (838) 37 (940) 20 (508) 24 (610) 12 b 3<br />

5000 4000 29 (737) 33 (838) 37 (940) 20 (508) 24 (610) 15 b 4<br />

Horizontal End Tap Box<br />

Suffix ETHS (Standard)<br />

Suffix ETHX (Extended)<br />

15<br />

BUSWAY SYSTEMS<br />

Standard and Extended Vertical End Tap Boxes, Dimensions<br />

Cable Lugs<br />

Dimensions Inches (mm) Wire Bend Space Per Phase & Neutral Ground<br />

Ampere Rating “A” “B” Std. “B” Ext. “C” Std. “C” Ext. Qty. Size Lugs a<br />

AL L-Rated<br />

225 — 13 (330) 25 (635) 29 (737) 17 (432) 21 (533) 1 a 1<br />

400 — 13 (330) 25 (635) 29 (737) 17 (432) 21 (533) 1 b 1<br />

600 — 13 (330) 25 (635) 29 (737) 17 (432) 21 (533) 2 b 1<br />

800 400 13 (330) 25 (635) 29 (737) 17 (432) 21 (533) 3 b 1<br />

1000 600 13 (330) 25 (635) 29 (737) 17 (432) 21 (533) 4 b 1<br />

1200 800 18 (457) 28 (711) 32 (813) 20 (508) 24 (610) 4 b 1<br />

1350 1000 18 (457) 28 (711) 32 (813) 20 (508) 24 (610) 4 b 1<br />

1600 1200 18 (457) 28 (711) 32 (813) 20 (508) 24 (610) 5 b 1<br />

2000 1350,1600 18 (457) 28 (711) 32 (813) 20 (508) 24 (610) 6 b 2<br />

2500 2000 27 (686) 28 (711) 32 (813) 20 (508) 24 (610) 8 b 2<br />

3000 2500 27 (686) 28 (711) 32 (813) 20 (508) 24 (610) 9 b 2<br />

3200 2000 29 (737) 28 (711) 32 (813) 20 (508) 24 (610) 9 b 2<br />

4000 3000,3200 29 (737) 28 (711) 32 (813) 20 (508) 24 (610) 12 b 3<br />

CU M-Rated<br />

225 — 13 (330) 25 (635) 29 (737) 17 (432) 21 (533) 1 a 1<br />

400 — 13 (330) 25 (635) 29 (737) 17 (432) 21 (533) 1 b 1<br />

600 — 13 (330) 25 (635) 29 (737) 17 (432) 21 (533) 2 b 1<br />

800 400 13 (330) 25 (635) 29 (737) 17 (432) 21 (533) 3 b 1<br />

1000 — 13 (330) 25 (635) 29 (737) 17 (432) 21 (533) 4 b 1<br />

1200 600 13 (330) 28 (711) 32 (813) 20 (508) 24 (610) 4 b 1<br />

1350 800 13 (330) 28 (711) 32 (813) 20 (508) 24 (610) 4 b 1<br />

1600 1000 18 (457) 28 (711) 32 (813) 20 (508) 24 (610) 5 b 1<br />

2000 1200,1350 18 (457) 28 (711) 32 (813) 20 (508) 24 (610) 6 b 2<br />

— 1600 18 (457) 28 (711) 32 (813) 20 (508) 24 (610) 5 b 1<br />

2500 2000 18 (457) 28 (711) 32 (813) 20 (508) 24 (610) 8 b 2<br />

3000 — 27 (686) 28 (711) 32 (813) 20 (508) 24 (610) 9 b 2<br />

3200 — 27 (686) 28 (711) 32 (813) 20 (508) 24 (610) 9 b 2<br />

4000 2500,3000,3200 27 (686) 28 (711) 32 (813) 20 (508) 24 (610) 12 b 3<br />

5000 4000 29 (737) 28 (711) 32 (813) 20 (508) 24 (610) 15 b 4<br />

Vertical End Tap Box<br />

Suffix ETVS (Standard)<br />

Suffix ETVX (Extended)<br />

a #6 AWG -350 kcmil, Cu/AI. b #4 AWG -600 kcmil, Cu/AI. c 24.0" (610mm) for isolated ground.<br />

Siemens Industry, Inc. SPEEDFAX Product Catalog 15-17

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