8174T400400.010-1 B & R Automation
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The B & R Automation 8174T400400.010-1 is part of the 8I7 ACOPOS Inverters series and offers a motor power of 4 kW with an apparent power of 9.1 kVA at 500 Vac. This inverter provides 3 analog inputs, 6 digital inputs, and has dimensions of 60 mm width, 317 mm height, and 245 mm depth. It also weighs 2.176 kilograms and features 2 relay outputs with a minimum brake resistance of 36 ohms.
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Product Description:
The 8174T400400.010-1 is an AC drive module manufactured by B&R Automation for the 8I7 ACOPOS Inverters series. As an inverter, it converts three-phase mains power into a variable-frequency, variable-voltage output. This controlled output regulates motor speed and torque in automated machinery such as conveyors, pumps, and processing lines.
This model supports continuous motor power of 4 kW, indicating the load it can sustain without derating. On a 500 VAC supply, its apparent power reaches 9.1 kVA, a value used for sizing upstream transformers and protection devices. When supplied with 380 VAC, the inverter draws a mains current of 13.7 A, while operation at 500 VAC lowers the current draw to 10.5 A. These current values support suitable cable selection and thermal planning within the control panel. Internal power losses are limited to 125 W, allowing cabinet ventilation to be sized for the resulting heat. Three analog inputs and six digital inputs accept process variables and discrete commands, while two relay outputs connect to contactors or fault indicators.
The control electronics receive power through an auxiliary rail that requires 1.1 A, keeping logic power independent of the main bus. During startup, the inverter has an inrush current of 10 A, so the upstream protection must accommodate the temporary current increase. Dynamic braking energy is diverted through an external resistor with a minimum resistance of 36 Ω, preventing DC-link overvoltage during rapid deceleration. The housing is 317 mm tall, 60 mm wide, and 245 mm deep, allowing narrow side-by-side mounting in standard enclosures with a depth of 300 mm. Its total weight is 2.176 kg, which reduces the structural load placed on the mounting panel. The digital output channel supplies up to 100 mA for status lights or interlock circuits.
