Emerson 250 Recommended conduit and cable sizes, Rectifier Input, Bypass Input, Battery, Bonding

Specifications

Table 12

Recommended conduit and cable sizes

Rectifier Input

Voltage

Nominal Selection

Alternate Selection

UPS Rating

(VAC)

Top Cable Entry Input

Bottom Cable Entry

Top Cable Entry Input

Bottom Cable Entry

kVA

kW

Input

Bypass

Output

Wire & Conduit

Input Wire & Conduit

Wire & Conduit

Input Wire & Conduit

Ph, G THW / FMC

Ph, G THW / RNC

Ph, G THW / FMC

Ph, G THW / RNC

250

225

480

480

480

(2) 2.5C 3-250kcmil,

(2) 2.5C 3-250kcmil,

(3) 2C 3-#2/0AWG,

(3) 2C 3-#2/0AWG,

#1/0AWG

#1/0AWG

#1/0AWG

#1/0AWG

300

270

480

480

480

(2) 3C 3-350kcmil,

(2) 3C 3-350kcmil,

(3) 2.5C 3-#4/0AWG,

(3) 2.5C 3-#4/0AWG,

#1/0AWG

#1/0AWG

#1/0AWG

#1/0AWG

400

360

480

480

480

(2) 3C 3-500kcmil,

(2) 3.5C 3-500kcmil,

(3) 2.5C 3-250kcmil,

(3) 2.5C 3-250kcmil,

#1/0AWG

#1/0AWG

#1/0AWG

#1/0AWG

Bypass Input

UPS Rating

Voltage (VAC)

Nominal Selection

Alternate Selection

Top Cable Entry Input

Bottom Cable Entry

Top Cable Entry Input

Bottom Cable Entry

kVA

kW

Input

Bypass

Output

Wire & Conduit

Input Wire & Conduit

Wire & Conduit

Input Wire & Conduit

Ph, N, G THW / FMC

Ph, N, G THW / RNC

Ph, N, G THW / FMC

Ph, N, G THW / RNC

250

225

480

480

480

(2) 3C 3-250kcmil,

(2) 3C 3-250kcmil,

(3) 2C 3-#2/0AWG,

(3) 2.5C 3-#2/0AWG,

2-250kcmil, #1/0AWG

2-250kcmil, #1/0AWG

2-#2/0AWG, #1/0AWG

2-#2/0AWG, #1/0AWG

300

270

480

480

480

(2) 3.5C 3-350kcmil,

(2) 3.5C 3-350kcmil,

(3) 3C 3-#4/0AWG,

(3) 3C 3-#4/0AWG,

2-350kcmil, #1/0AWG

2-350kcmil, #1/0AWG

2-#4/0AWG, #1/0AWG

2-#4/0AWG, #1/0AWG

400

360

480

480

480

(2) 4C 3-500kcmil,

(2) 4C 3-500kcmil,

(3) 3C 3-250kcmil,

(3) 3C 3-250kcmil,

2-500kcmil, #1/0AWG

2-500kcmil, #1/0AWG

2-250kcmil, #1/0AWG

2-250kcmil, #1/0AWG

Output

UPS Rating

Voltage (VAC)

Nominal Selection

Alternate Selection

Top Cable Entry Input

Bottom Cable Entry Input

Top Cable Entry Input

Bottom Cable Entry

kVA

kW

Input

Bypass

Output

Wire & Conduit

Wire & Conduit

Wire & Conduit

Input Wire & Conduit

Ph, N, G THW / FMC

Ph, N, G THW / RNC

Ph, N, G THW / FMC

Ph, N, G THW / RNC

250

225

480

480

480

(2) 3C 3-250kcmil,

(2) 3C 3-250kcmil,

(3) 2C 3-#2/0AWG,

(3) 2.5C 3-#2/0AWG,

2-250kcmil, #1/0AWG

2-250kcmil, #1/0AWG

2-#2/0AWG, #1/0AWG

2-#2/0AWG, #1/0AWG

300

270

480

480

480

(2) 3.5C 3-350kcmil,

(2) 3.5C 3-350kcmil,

(3) 3C 3-#4/0AWG,

(3) 3C 3-#4/0AWG,

2-350kcmil, #1/0AWG

2-350kcmil, #1/0AWG

2-#4/0AWG, #1/0AWG

2-#4/0AWG, #1/0AWG

400

360

480

480

480

(2) 4C 3-500kcmil,

(2) 4C 3-500kcmil,

(3) 3C 3-250kcmil,

(3) 3C 3-250kcmil,

2-500kcmil, #1/0AWG

2-500kcmil, #1/0AWG

2-250kcmil, #1/0AWG

2-250kcmil, #1/0AWG

Battery

UPS Rating

Voltage (VAC)

Nominal Selection

Alternate Selection

Top Cable Entry Input

Bottom Cable Entry Input

Top Cable Entry Input

Bottom Cable Entry Input

kVA

kW

Input

Bypass

Output

Wire & Conduit

Wire & Conduit

Wire & Conduit

Wire & Conduit

Wires, G THW / FMC

Wires, G THW / RNC

Wires, G THW / FMC

Wires, G THW / RNC

250

225

480

480

480

(2) 2.5C 2-350kcmil,

(2) 2.5C 2-350kcmil,

(3) 2C 2-#4/0AWG,

(3) 2C 2-#4/0AWG,

#1/0AWG

#1/0AWG

#1/0AWG

#1/0AWG

300

270

480

480

480

(2) 2.5C 2-500kcmil,

(2) 3C 2-500kcmil,

(3) 2C 2-250kcmil,

(3) 2C 2-250kcmil,

#1/0AWG

#1/0AWG

#1/0AWG

#1/0AWG

(3) 2.5C 2-500kcmil,

(3) 2.5C 2-500kcmil,

(4) 2C 2-250kcmil,

(4) 2.5C 2-250kcmil,

400

360

480

480

480

#2/0AWG

#2/0AWG

#2/0AWG

#2/0AWG

Bonding

UPS Rating

Voltage (VAC)

Main Bonding Jumper/

Grounding Electrode

kVA

kW

Input

Bypass

Output

Conductor

250

225

480

480

480

(1) #1/0AWG/ (1)

#1/0AWG

300

270

480

480

480

(1) #2/0AWG/ (1)

#2/0AWG

400

360

480

480

480

(1) #2/0AWG/ (1)

#2/0AWG