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FANUC A06B-6121-H030#H550


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  • Ships Today
  • 2 Year Warranty
Part NumberA06B-6121-H030#H550
TypeSpindle Amplifiers
Model #A06B6121H030#H550
Warranty2 Year
Rated output133A
Heat dissipation247W
Rated output15kW
Speed control rangeSpeed ratio 1:100
Main circuit control methodSine-wave PWM control with transistor
Speed variation rate0.1% or less of maximum speed
Applicable CNC16i-B, 18i-B, 21i-B, 0i-B/C/D, and 30i/31i/32i
Residual cabinet heat41W

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 A06B-6121-H030#H550 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 A06B-6121-H030#H550 we also repair a wide range of other FANUC products, 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 A06B-6121-H030#H550, 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 : 20lbs

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Ask about exchanging your faulty A06B-6121-H030#H550 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.

FANUC A06B-6121-H030#H550 Overview

FANUC A06B-6121-H030#H550 Overview

ALPHA I SERVO MODULE MDL SPM-30HVI These products are manufactured in Japan and are designed for Commodity production, advanced machining, and CNC milling usage. They come with a 2-year warranty from MRO Electric. We also carry Spindle Amplifiers from other manufacturers such as Siemens and Control Techniques.

The servo amplifier module A06B6121H030#H550 is an αi SPM-30HVI module manufactured by Fanuc for the αi SP series as a 1 servo sensor input unit. The αi SP is one of two types in the αi SP series.  The two types are the 200-V input series and the 400V input series.  The 200-V series drives a servo motor of the 200-V input series. The 400-V input series drives a servo motor of the 400-V input series. The Fanuc A06B6121H030#H550 is an amplifier that supports 400-V input.

Features of the A06B6121H030#H550

The CNC Fanuc servo amp A06B6121H030#H550 module is a three-phase 400 CAC to 480 VAC main power supply unit.  The αi SPM-30HVI has a rated output of 170 A and works with αi I 60HV motors. Applicable CNCs for this unit are 16i-B, 18i-B, 21i-B, 0i-B/C/D, and 30i/31i/32i. The speed control range for the A06B6121H030#H550 is speed ratio 1:100. The speed variation rate is 0.1% or less of maximum speed. It has a -15% to +10% allowable voltage deviation. The power frequency for the A06B6121H030#H550 αi SPM-30HVI is 50/60Hz, ±1Hz. The operation of the unit should be at an ambient temperature of 0 to 55°C. The humidity where the unit is operating should be at 90% RH or below and the vibration should be below 0.5 G. Installation should be in a magnetic cabinet.

Advantages of the αi SPM-30HVI unit

The Fanuc servo amp A06B6121H030#H550 αi SPM-30HVI must be installed in a cabinet that is sealed for environmental requirements operating in an environment with an ambient temperature of 0 to 55°C during operation and -20 to 60°C when storing or transporting. Other environmental conditions to be aware of include humidity which should be 90% RH or below, and condensation-free. While in operation, the vibration should remain below 0.5G. To avoid damage, the unit should be free of foreign matter or corrosive materials. It should be kept from water droplets and mist.

In order to prevent heat from building up behind the Fanuc servo amp A06B6121H030#H550 αi SPM-30HVI unit and causing damage, appropriate measures should be taken. Installation should be in a magnetic cabinet with a heat sink at the rear of the unit. The heat sink dissipates the heat generated by semiconductors.

Keep the servo amp A06B6121H030#H550 αi SPM-30HVI installed where it can be inspected through removal easily, making remounting simple.  The unit must be installed in a vertical position.

Contact Us Today For More Information About FANUC 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 emailing us at, we strive for customer satisfaction first. This means lower prices and better service for you. For more products like A06B-6121-H030#H550, take a look at more from our Spindle Amplifiers 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 A06B-6121-H030#H550 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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