3-4 3 Contactor Basic Bypass with Disconnect Package (Style C)
Rockwell Automation Publication 22C-IN002E-EN-P - November 2010
Drive/Bypass Relay (CR)
A user-powered (24V AC) “Drive/Bypass” enable relay is provided for
remote shut down of the unit. This relay can be used to turn off the motor
whether the selector switch is in Drive or Bypass positions. It can also be
used for an safety-input interlocks (freeze/fire stats, smoke purge, etc.). To
utilize this function, factory-installed jumpers must be removed and
Normally Closed contacts must be field wired to the appropriate input
terminals.
Electrical Installation
Input Power Wiring
Use 75 °C rated copper conductors only for customer power wiring.
Refer to the PowerFlex 400 User Manual for additional detailed information
about input power wiring recommendations and selection.
To connect AC input power to the drive package:
❏ 1. Select the proper wire size according to NEC and all applicable local
codes and standards. Note that you must punch openings in the Option
Cabinet of the desired conduit size, following NEC and all applicable
local codes and standards. Power terminal block specifications are listed
in Table 3.C
.
❏ 2. Connect the three-phase AC input power leads (three-wire VAC) to the
appropriate terminals. For ratings provided with a Motor Protector,
connect the AC input power leads to terminals L1, L2, L3 on the Input
Power Terminal Block. For ratings provided with a fused disconnect,
connect the AC input power leads to terminals L1, L2, L3 on the fused
disconnect switch.
❏ 3. Tighten the AC input terminal power terminals to the proper torque
according to drive type as shown in Table 3.C
.
Table 3.C AC Input Power Terminal Block Specification
ATTENTION: Protect the contents of the options cabinet from
metal chips and other debris while drilling the conduit openings.
Failure to observe this precaution could result in damage to, or
destruction of, the equipment.
ATTENTION: Do not route signal and control wiring with
power wiring in the same conduit. This can cause interference
with drive operation. Failure to observe this precaution could
result in damage to, or destruction of, the equipment.
Voltage
Rating kW Hp
Maximum Wire
Size
(1)
(1)
Maximum/minimum sizes that the terminal block will accept - these are not recommendations. If national or local
codes require sizes outside the range, lugs may be used.
Minimum Wire Size
Recommended
Torque
460V AC 2.2…5.5 3.0…7.5 8.4 mm
2
(8 AWG) 0.5 mm
2
(22 AWG) 1.5 N•m (13 lb•in)
7.5…22 10…30 16.0 mm
2
(4 AWG) 2.5 mm
2
(14 AWG) 2.3 N•m (20 lb•in)
30 40 35.0 mm
2
(1/0 AWG) 2.5 mm
2
(14 AWG) 2.5 N•m (22 lb•in)
37…45 50…60 33.6 mm
2
(2 AWG) 3.5 mm
2
(12 AWG) 13.6 N•m (120 lb•in)
55…75 75…100 250 MCM 10.0 mm
2
(6 AWG) 31.1 N•m (275 lb•in)
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