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2 Year warranty


Part Number6SN1145-1BB00-0FA1
Model #6SN11451BB000FA1
TypeAC Motors
Warranty2 Year
DC link power PZK≤120kW
Peak power175kW
Charge limit20000μF
Module typeInfeed/regenerative feedback module
Feedback typeRegulated
CoolingHose cooling

Our Repair Services

MRO Electric repairs CNCs, PLCs, Servo/Spindle Drives, Motors, Amplifiers, VFDs, HMIs, and more, most of which can be repaired in only 3-5 days.

Repair Benefits

MRO can restore your failed 6SN1145-1BB00-0FA1 to remanufactured condition and save you up to 75% compared to buying new. We offer standard repair pricing to ensure you the best value for your repair.

Our certified technicians use rigorous testing procedures to ensure your parts are restored to fully functioning condition. Our team proudly stands behind all repairs by providing a minimum 2 year warranty.

Our technicians have vast experience with most manufacturers and models. In addition to this 6SN1145-1BB00-0FA1 we also repair drives, motors, PLCs and more, so if you don’t see the model you need, please contact us.

Core Exchange

If you are interested in getting credit for your faulty 6SN1145-1BB00-0FA1, just let us know and we can issue you an RMA to send it in as an exchange. Our exchange program provides you with savings and keeps us stocked for the next time you need anything.

  • Shipping Weight : 56lbs

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Ask about exchanging your faulty 6SN1145-1BB00-0FA1 for credit when ordering from MRO Electric

MRO Electric provides a 2-year warranty on every item we sell and repair. We stand behind all of our products and guarantee them for the full 2 years. If there is an issue with any of our products within the warranty period, we will evaluate the unit and repair or replace it under warranty.

Additional Information

Siemens 6SN1145-1BB00-0FA1 Overview

The SIMODRIVE 611 module 6SN1145-1BB00-0FA1 is an infeed regenerative feedback (IR) unit manufactured by Siemens for closed-loop control.


Infeed/regenerative feedback module, regulated:

DC link power PZK ≤ 120 kW

Peak power 175 kW

Charge limit 20000 μF

The Siemens infeed module 6SN1145-1BB00-0FA1 is used to connect the drive group to the line supply.

The DC link receives power through the infeed / regenerative feedback module. The regenerative feedback module, along with the UI and monitoring, provides the electrics power supply for any modules that are connected.

The infeed regenerative feedback unit 6SN1145-1BB00-0FA1 does not have any comprehensive overload protection. How do you ensure line protection for your motor? To obtain overload protection, the protection must be provided by the configuration and correct setting of the current values. The current values are set with the control boards.

How does the infeed regenerative feedback (I/R) unit interact with the HFD reactor?

The infeed regenerative feedback (I/R) modules along with the HF/HFD commutating reactors make up the step-up converter (7 kHz).  The step-up converter is necessary for controlling the DC link voltage and enabling regenerative feedback.

The SIMODRIVE 611 module 6SN1145-1BB00-0FA1 infeed regenerative feedback (IR) unit module is primarily used for the following three applications:

It is used to assist machines with high dynamic requirements placed on the drives.

It is used where there are frequent braking cycles and high braking energy.

It is used with control cabinet designs optimized for low operating costs.

Is an HFD necessary for the infeed module to operate properly? The HFD line reactor is required for the I/R module to function. This is cyclically short-circuited for an active step-up controller and voltage control to function.

Overvoltage limiting units

Overvoltage limiting modules are available to limit sporadic, transient overvoltages such as ones that can occur as a result of switching operations in the line supply.

Monitoring modules

The monitoring module supplies electronics power for the equipment bus and the central monitoring functions. They create a separate drive group. Usually, the power is supplied by the 3-phase 400-800 V AC line supply. The power supply is also able to be connected to the DC link in case there is a power failure.

Is the monitoring module necessary? The monitoring module is required if a higher number of drive units in the group exceeds the electronics power supply of the infeed module, IR, or UI modules. When using the monitoring module, you can then group drive modules in multiple cabinet compartments or group drive modules in tiers.

Arrangement of infeed module 6SN1145-1BB00-0FA1

How is the infeed module, such as the SIMODRIVE 611 module 6SN1145-1BB00-0FA1 infeed regenerative feedback (IR) unit module, arranged in the drive grouping? The infeed module (IR) along with the UI and monitoring modules are located first in a cabinet on the left.

How are the line supply infeed and drive modules mounted to the mounting panels? Infeed modules drive modules, and commutating reactors have a mounting surface. The mounting surface of these modules has to have a low-resistance connection to the mount.

The Siemens SIMODRIVE 611 regenerative feedback (IR) unit 6SN1145-1BB00-0FA1 comes with a two-year warranty.

Product Description

The 6SN1145-1BB00-0FA1 is a INFEED/REGEN.FEEDBACK, 120/156 KW, CLOSED-LOOP CON... that is manufactured by Siemens. These products are manufactured in Germany and are designed for Automotive, aerospace, power generation, and electronics usage. All of the products in the simodrive line come with a 2 year warranty from MRO Electric. We also carry AC Motors from other manufacturers such as FANUC and Yaskawa.

Related Products

Check out the rest of our Siemens product line. Whether it's using our online instant quote feature, giving us a call at (800) 691-8511, or sending us an email at, we strive for customer satisfaction first. This means lower prices and better service for you. For more products like 6SN1145-1BB00-0FA1, take a look at more from our Robotics line. If your current unit has gone bad, take advantage of our Core Exchange program for the most inexpensive route. You can learn more about this program on our FAQ page here. We offer a repair service on all of our 6SN1145-1BB00-0FA1 products that keep your downtime to a minimum. To stay up to date on manufacturer news, as well as access any of our datasheets, manuals, or other documentation, we suggest you take a look at our blog.

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