Allen-Bradley PowerFlex 400 User Manual

3 Contactor Basic Bypass with Disconnect Package (Style C) 3-3
Rockwell Automation Publication 22C-IN002E-EN-P - November 2010
Motor Overload Relay (OL)
For units supplied with a fused disconnect switch, a motor overload relay is
supplied. The motor overload relay is set at the factory to 100% of the drive
output current. In many cases, this setting matches the motor full load amps
(FLA). However, before starting the drive, you should check the setting on
the motor overload relay to assure that it is set properly for your motor.
• For motors with a service factor less than 1.15, set the motor overload
relays to 0.9x motor FLA.
• For motors with a service factor equal to, or greater than 1.15, set the
motor overload relay to the motor FLA.
Figure 3.1 Setting Motor Overload
Table 3.B Overload Ratings
Drive Rating Overload Rating
Input Voltage kW Hp Trip Class
Adjustment Rating
(Amps)
460V AC – 3-Phase 2.2 3.0 20 3.2 - 16
4.0 5.0 20 3.2 - 16
5.5 7.5 20 3.2 - 16
7.5 10 20 5.4 - 27
11 15 20 9 - 45
15 20 20 9 - 45
18.5 25 20 9 - 45
22 30 20 9 - 45
30 40 20 18 - 90
37 50 20 18 - 90
45 60 20 18 - 90
55 75 20 40 - 200
75 100 20 40 - 200
Motor Overload Relay
Adjustment Dial

Allen-Bradley PowerFlex 400 Specifications

General

Input Voltage	200-240VAC, 380-480VAC, 500-600VAC
Output Voltage	0-Input Voltage
Output Frequency	0-400 Hz
Communication	EtherNet/IP
Protection Features	Overvoltage, Undervoltage, Overcurrent, Short Circuit
Operating Temperature	-10°C to 50°C (14°F to 122°F)
Storage Temperature	-40°C to 70°C (-40°F to 158°F)
Humidity	5-95% non-condensing
Enclosure Rating	IP20
Horsepower	0.5-20 HP
Control Method	V/Hz, Sensorless Vector Control