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2 Year warranty
Part NumberA03B-0807-C161
Model #A03B0807C161
TypeI/O Modules
Warranty2 Year

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 A03B-0807-C161 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 A03B-0807-C161 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 A03B-0807-C161, 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 : 1lb

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Ask about exchanging your faulty A03B-0807-C161 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

Fanuc A03B-0807-C161 Overview

The A03B-0807-C161 is an A03B-08 Relay Output Module which serves as part of a larger Computer Numerical Controls (CNC) system, and a part of a GE FANUC manufactured automation systemThe A03B-0807-C161 FANUC Relay Output Module is designed for the FANUC Input/output Model A, equipped with a 16 point, 2AMP, 250 VAC, and 30 VDC connection with which to relay out. The A03B-0807-C161 is also complete with 20 screws for connections, located on one side of the unit in two compact rows of 10 screws each. The rows of screws are covered by one single plastic panel that can unlatch and swing open to reveal the screws. The plastic cover may house a small paper chart that lists the unit’s different connection points: A0-A7 and B0-B7Above the plastic panel, there is a smaller plastic cover that appears black underneath and will indicate one or more of the designated A or B numbered connections by illuminating specific numbers in either the A or B row.

Originally manufactured by FANUC in Japan, the manufacturing of these particular modules has since been discontinued. The A03B-0807-C161 is still available for purchase from MRO Electric and Supply Inc.


There are important things to be aware of when installing the Relay Output Module and the conditions which the environment should provide for the cabinet which houses many parts of the individual FANUC system. The A03B-0807-C161 module, along with other modules like it, is designed to all be enclosed in a cabinet. The ambient temperature of the cabinet should operate between 0°C and 45°C. The temperature appropriate for storage and transport is between -20°C and 60°C. It has a permissible temperature change of 0.3°C per minute or less. The humidity should remain safe within the designated level of 75% relative humidity or less with no condensation. If necessary, for less than one month, the cabinet that the A03B-08 Relay Output Module is housed in may safely be subject to 95% relative humidity or less humidity with no condensation.

There are other parameters that are necessary to consider when housing the A03B-08 Relay Output Module. One consideration is that the designated cabinet must also maintain a certain level of minimum vibration.  The vibrations must be 0.5G or less when the machine is operating and maybe as high as 1.0G if the machine is not operating during that time. The cabinet must also be kept in a location that is no higher than 1,000 m above sea level, or up to 1,2000 m when the modules contained are non-operating. Overall, the environment should be normal for a machine shop.

A resource such as the Input/output Unit – Model A Connection Maintenance Manual linked on the webpage for the A03B-0807-C161 provides a large amount of additional helpful information. The manual outlines various safety precautions that can be taken to protect users and preventative measures to ensure the machine is not damaged. Following simple procedures, such as reading the Warning and Caution section before operating any machinery using the A03B-0807-C161 FANUC Relay Output Module, is the most straightforward way to ensure that the user and the machinery remain safe and functional.

The Fanuc A03B-0807-C161 comes with a two-year warranty.

Product Description

The A03B-0807-C161 is a A03B-08 OUTPUT MODULE 16POINT 2AMP 250VAC 30VDC that is manufactured by FANUC. These products are manufactured in Japan and are designed for Commodity production, advanced machining, and CNC milling usage. All of the products come with a 2 year warranty from MRO Electric. We also carry I/O Modules from other manufacturers such as Siemens and Control Techniques.

Related Products

Check out the rest of our FANUC 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 A03B-0807-C161, take a look at more from our I/O Modules 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 A03B-0807-C161 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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