8I44T200400.000-1 B & R Automation
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The B & R Automation 8I44T200400.000-1 is part of the 8I4 ACOPOS Inverters series and supports a motor power of 4 kW with a nominal output current of 16.7 Amps. It offers 8.3 kVA apparent power, uses Modbus RTU over an RS485 bus interface, and features degree of protection rated at IP20. The inverter has 4 digital inputs at 24 VDC and a maximum switching frequency of 16 kHz.
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Product Description:
The 8I44T200400.000-1 is an ACOPOS inverter produced by B&R Automation for the 8I4 ACOPOS Inverters series. Installed between the DC bus and an AC machine, it synthesizes variable-frequency power so a connected motor can follow speed and torque commands from a PLC over an RS485 bus that uses Modbus RTU. This unit suits compact machinery and conveyor zones where decentralized control and rapid commissioning are preferred.
The inverter is sized to drive motors up to 4 kW, aligning the power stage, thermal design, and protective functions with typical mid-frame induction machines. Its DC link and output filters are dimensioned for 8.3 kVA, indicating the maximum apparent load the unit can present without derating. Under continuous duty, the output stage delivers 16.7 A, which helps determine suitable cable sizes and upstream protection. The gate-drive electronics support a maximum switching frequency of 16 kHz, which can reduce audible motor noise when thermal losses are managed correctly.
For short overloads, the drive tolerates 25 A for 60 seconds, providing headroom during acceleration or brief high-torque indexing events. During steady operation, internal losses reach 128 W, and that heat is dissipated through convection across the heat-sink fins. The housing meets IP20 protection, so the unit should be installed inside a closed electrical enclosure. Four digital inputs accept control signals at 24 VDC, allowing local start, stop, and mode selection without extra interface modules.
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Frequently Asked Questions about 8I44T200400.000-1:
Q: What is the apparent power rating of the 8I44T200400.000-1 inverter?
A: The 8I44T200400.000-1 inverter has an apparent power rating of 8.3 kVA.
Q: What is the maximum switching frequency supported by the 8I44T200400.000-1?
A: This inverter supports a maximum switching frequency of 16 kHz.
Q: Which bus protocol is used by the 8I44T200400.000-1 inverter?
A: Modbus RTU is the bus protocol utilized on this inverter model.
Q: What is the nominal output current of the 8I44T200400.000-1?
A: The nominal output current for this model is 16.7 A.
Q: How many digital inputs are available on the 8I44T200400.000-1 and at what voltage do they operate?
A: There are four digital inputs on the 8I44T200400.000-1, each operable at 24 VDC.
