8I74T400750.010-1 B & R Automation
Wake Industrial LLC is not an authorized distributor of this product.
The B & R Automation 8I74T400750.010-1 is an inverter from the 8I7 ACOPOS Inverters series, featuring a motor power of 7.5 kW and a nominal output current of 17 Amps. This device supports 3-phase supply, handles an inrush current of 27.6 Amps, and has a protection rating of IP20. Dimensions are 308 mm in height, 150 mm in width, and 232 mm in depth.
Internal Product Review
The 8I74T400750.010-1 is a B & R Automation ACOPOS inverter rated for 7.5 kW motor power and 17 A nominal output current. 3-phase supply capability and IP20 protection make the unit a strong fit for controlled industrial cabinet installations. Strong overload capacity, highlighted by 28 A transient current, supports dependable drive performance.
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Product Description:
The 8I74T400750.010-1 is a three-phase inverter module produced by B&R Automation for the 8I7 ACOPOS Inverters series. It converts fixed mains power into regulated AC for variable-speed motor control in production lines, packaging machines, and material-handling cells. Pulse-width-modulated switching with current feedback ties servo or induction motors to centralized motion controllers and forms the interface between plant power distribution and axis commands.
At the input terminals, the inverter draws up to 26.5 A from a 380 VAC supply, while the apparent power reaches 16.2 kVA when it is fed from 500 VAC. Internally, insulated-gate bipolar transistors switch at a nominal carrier frequency of 4 kHz, shaping a sinusoidal output that can deliver a continuous 17 A to the motor. The power stage is rated for motors up to 7.5 kW, enabling medium-sized pumps, conveyors, and extruders to be started and regulated from a compact footprint. All electronics are housed in an enclosure with an IP20 protection rating, which is suitable for installation inside a ventilated control cabinet where accidental finger contact is prevented. Power dissipation during normal operation is 263 W, so cabinet ventilation must accommodate this thermal load.
The unit’s mechanical profile of 150 mm width, 308 mm height, and 232 mm depth allows stacking with neighboring modules on DIN rail spacers without blocking airflow. During power-up, the capacitors charge through an inrush limiter, yet the peak still rises to 27.6 A, so feeder breakers must handle that short demand. Once energized on a three-phase network at 500 VAC, steady-state input drops to 18.7 A; overload events are covered by transient limits of 28 A for 2 s and 25.5 A for 60 s. Dynamic braking energy is routed to an external resistor no smaller than 27 Ω, protecting the DC link when the connected motor decelerates quickly.
