Rockwell Automation Publication 290E-UM001B-EN-P - June 2012 165
Chapter 6
Specifications
Bulletin 290E/291E
Electrical Ratings
Power Circuit
Application Three-phase
Number of Poles 3
Input Power Terminals L1, L2, L3
Motor Power Terminals T1, T2, T3
PE (Earth Ground) Terminal 4 PE terminals
Maximum Rated Operating Voltage 400Y/230…480Y/277 (-15%, +10%)
Rated Impulsed Voltage (U
imp
)4 kV
Dielectric Withstand UL: 1960V AC, IEC: 2500V AC
Operating Frequency 50/60 Hz (±10%)
Maximum Rated Operating
Current
Cat. No. Hp (kW) Overload Range
290_-___-A-*
291_-___-A-*
2 (1.5) 0.24…3.5 A
290_-___-B-*
291_-___-B-*
5 (3) 1.1…7.6 A
Overload Type Solid-state I
2
T
Trip Class
[10], 15, 20 with thermal memory retention
(see Motor Overload Trip Curves)
Trip Rating — Full Load
Current (FLC)
120% of FLC
Reset Mode Automatic or manual
Overload Reset Level 1…100% TCU
Overvoltage Category III
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