Allen-Bradley 20G21FD077JA0NNNNN 755 AC Drive,Standard Protection,Flange Type,AC Input with P
$5,569.99
Out of stock
Request QuoteAllen-Bradley 20G21FD077JA0NNNNN — The 20G21FD077JA0NNNNN is an Allen-Bradley PowerFlex 755 AC drive — Flange Mount (Front IP20 Open / Back IP66 Type 4X), Frame 5 — rated 77 A continuous / 60 HP Normal Duty and 65 A continuous / 50 HP Heavy Duty for 380…480V AC, 3-Phase input. AC input with precharge, includes DC bus terminals; Filtering enabled, CM jumper installed (standard grounded system); Internal dynamic braking transistor installed. Embedded EtherNet/IP, DeviceLogix control, and predictive diagnostics are standard. Options for safety (STO, Safe Speed Monitor), I/O expansion, and communication modules slot into the drive’s option-card architecture.
| Drive Family | PowerFlex 755 (Bulletin 20G) |
| Normal Duty | 77 A continuous / 60 HP |
| Heavy Duty | 65 A continuous / 50 HP |
| Input Voltage | 380…480V AC, 3-Phase |
| Frame Size | Frame 5 |
| Enclosure | Flange Mount (Front IP20 Open / Back IP66 Type 4X) |
| Dimensions (H × W × D) | 550 × 270 × 212 mm (21.65 × 10.63 × 8.35 in.) |
| Weight | 24 kg (53 lb) |
Description
Allen-Bradley 20G21FD077JA0NNNNN
The 20G21FD077JA0NNNNN is an Allen-Bradley PowerFlex 755 AC drive — Flange Mount (Front IP20 Open / Back IP66 Type 4X), Frame 5 — rated 77 A continuous / 60 HP Normal Duty and 65 A continuous / 50 HP Heavy Duty for 380…480V AC, 3-Phase input. AC input with precharge, includes DC bus terminals; Filtering enabled, CM jumper installed (standard grounded system); Internal dynamic braking transistor installed. Embedded EtherNet/IP, DeviceLogix control, and predictive diagnostics are standard. Options for safety (STO, Safe Speed Monitor), I/O expansion, and communication modules slot into the drive’s option-card architecture.
| Drive Overview | |
|---|---|
| Catalog Number | 20G21FD077JA0NNNNN |
| Drive Family | PowerFlex 755 (Bulletin 20G) |
| Drive Type | AC Packaged Drive, Air Cooled |
| Input Type | AC input with precharge, includes DC bus terminals |
| Voltage Class | 480V AC nominal / 513…650V DC |
| Enclosure | Flange Mount (Front IP20 Open / Back IP66 Type 4X) |
| Frame Size | Frame 5 |
| Filtering / CM Cap | Filtering enabled, CM jumper installed (standard grounded system) |
| Dynamic Braking | Internal dynamic braking transistor installed |
| Door-Mounted HIM | No door-mounted HIM supplied |
| Mounting | Wall mount, vertical orientation |
| Communications & Control | |
|---|---|
| Embedded Network | EtherNet/IP (built-in port, PowerFlex 755 standard) |
| Option Card Architecture | Slot-based; supports 20-750-series option modules |
| Embedded Control | DeviceLogix — manipulates discrete outputs and drive control using discrete inputs and drive status on-board |
| Predictive Diagnostics | Tracks cooling-fan life, relay output life, programmable machine/motor-bearing runtime |
| Electrical — AC Input | |
|---|---|
| Nominal Input Voltage | 380…480V AC, 3-Phase |
| AC Input Overvoltage Trip | 576V AC |
| AC Input Undervoltage Trip | 300V AC |
| Frequency Tolerance | 47…63 Hz |
| Input Phases | Three-phase input provides full rating for all drives |
| Displacement Power Factor | 0.98 across entire speed range |
| DC Link Impedance | ≤ 4% |
| Efficiency | 97.5% at rated amps, nominal line volts |
| Max Short-Circuit Rating | 200,000 A RMS symmetrical |
| Line Transients | Up to 6000V peak per IEEE C62.41-1991 |
| Electrical — DC Bus & Protection | |
|---|---|
| Nominal DC Bus Voltage | 513…650V DC |
| Bus Overvoltage Trip | 815V DC |
| Bus Undervoltage Shutoff | 400V DC or 800V DC (selectable) |
| Drive Overcurrent Trip (software) | 200% of drive rated |
| Instantaneous Current Limit | 100% of 3-s rating (158…210%) |
| Hardware Overcurrent Trip | 143% of 3-s rating (215…287%) |
| Ground Fault Trip | Phase-to-ground on drive output |
| Short Circuit Trip | Phase-to-phase on drive output |
| Power Ride-through | 15 ms at full load |
| Logic Control Ride-through | 0.5 s minimum, 2 s typical |
| Output & Motor Control | |
|---|---|
| Output Amps (Normal Duty, Continuous) | 77 A |
| Output Amps (Heavy Duty, Continuous) | 65 A |
| Modulation Method | Sine-coded PWM with programmable carrier frequency |
| Default Carrier Frequency | 2 kHz (Frames 4+) |
| Selectable Carrier Frequency | 2, 4, 8, 12 kHz (Frames 1…6) |
| Output Voltage Range | 0 to rated motor voltage |
| Output Frequency Range | 0…325 Hz at 2 kHz carrier; 0…590 Hz at 4 kHz carrier |
| Motor Control Modes | V/Hz (custom), Sensorless Vector, Flux Vector (with/without encoder), Induction, Surface/Internal PM |
| Stop Modes | Ramp, Coast, DC-Brake, Ramp-to-Hold, Fast Braking, Current Limit Stop |
| Accel / Decel | Two independently programmable times, 0…3600 seconds in 0.1-s increments |
| S-Curve | Adjustable 0…100% of ramp time |
| Electronic Motor Overload | Class 10 per NEC 430.126(A)(2); UL 508C File E59272 |
| Overload Capability | |
|---|---|
| Normal Duty (Continuous) | 77 A continuous / 60 HP |
| Normal Duty — 60 s | 85 A (110% for 1 min out of 10) |
| Normal Duty — 3 s | 116 A (150% for 3 s out of 60) |
| Heavy Duty (Continuous) | 65 A continuous / 50 HP |
| Heavy Duty — 60 s | 98 A (150% for 1 min out of 10) |
| Heavy Duty — 3 s | 117 A (180% for 3 s out of 60) |
| Current Limit Capability | Proactive current limit programmable 20…160% of rated output |
| Environmental | |
|---|---|
| Operating Ambient (IP20 Open Type, Frames 1…5) | 0…50 °C (32…122 °F), all ratings |
| Storage Temperature | -40…70 °C (-40…158 °F) |
| Relative Humidity | 5…95% non-condensing |
| Pollution Degree | 1 or 2 (all enclosures acceptable) |
| Altitude (480V, TN/TN-S grounded, Cat II) | Up to 9000 m (29,527.5 ft) — limited to 4800 m (15,748 ft) thermally; see derating guidelines |
| Shock — Operating | 15 g peak for 11 ms (±1.0 ms) |
| Vibration — Operating | 1.0 mm (0.040 in.) displacement, 1.5 g peak |
| Atmospheric Protection | IEC 60721-3-3 classes 3C3 and 3S2 (3S2 requires IP54/UL Type 12 cabinet) |
| Physical & Mounting | |
|---|---|
| Height | 550 mm (21.65 in.) |
| Width | 270 mm (10.63 in.) |
| Depth | 212 mm (8.35 in.) |
| Weight | 24 kg (53 lb) |
| Top Clearance (Wall Mount) | 76.2 mm (3.0 in.) minimum |
| Bottom Clearance (Wall Mount) | 76.2 mm (3.0 in.) minimum |
| Orientation | Wall mount, vertical orientation |
| Safety / Functional Safety | |
|---|---|
| Safety Option Cards | Safe Torque Off (STO), Safe Speed Monitor, Integrated Safety — STO, Integrated Safety Functions |
| Safety Option Module Catalog Numbers | 20-750-S, 20-750-S1, 20-750-S3, 20-750-S4 |
| Safety Certification | TÜV Rheinland (when a listed safety option is installed) |
| Applied Safety Standards | EN 61800-3; EN 61508 Parts 1…7; EN 61800-5-1; EN 62061; EN 61800-5-2; EN 60204-1; EN ISO 13849-1 |
| Certifications & Compliance | |
|---|---|
| c-UL-us | UL 508C and CSA 22.2 No. 14 |
| CE — EMC Directive | 2014/30/EU — EN 61800-3 |
| CE — Low Voltage Directive | 2014/35/EU — EN 61800-5-1 |
| CE — ATEX Directive | 2014/34/EU — TÜV 12 ATEX 7328 X, EN 50495 |
| SEMI F47 | SEMI F47, IEC 61000-4-34 |
| EAC (Customs Union) | Low Voltage TP TC 004/2011, EMC TP TC 020/2011 |
| Ecodesign Regulation | (EU) 2019/1781 — IE2 efficiency class |
| UKCA | EMC 2016 No. 1091, LVD 2016 No. 1101 |
| ABS Marine | American Bureau of Shipping Certificate 11-HS743429 |
Related Technical Topics
- Frame Installation — Frame 5 is wall-mounted vertically with full contact against the panel. Maintain 76.2 mm (3.0 in.) top and bottom airflow clearance. No standoffs or spacers permitted. Zero-stacking is allowed between adjacent Frame 1…5 drives when the upstream drive is at 40 °C or lower ambient.
- Safe Torque Off (STO) Wiring — STO is optional and requires one of the safety option cards (20-750-S, -S1, -S3, or -S4). Factory-default drives ship without STO. Wire 24V DC safety supply to terminals S1/S2 and validate the SS1/SS2 test before commissioning. Required for SIL3/PLe applications.
- Dynamic Braking Sizing — If catalog position 12 = A, an internal braking transistor is installed and an external resistor (20-750-DB1-Dx) is required for regenerative duty. Size the resistor for peak braking torque and duty cycle — continuous regen applications require external chopper + resistor bank.
- EtherNet/IP Commissioning — The built-in Ethernet port (standard on 755) is configured via Studio 5000 or the Connected Components Workbench wizard. Set a static IP before field deployment — drives ship with DHCP enabled and no default address. Add-On Profiles (AOPs) for Studio 5000 auto-map drive parameters.
Source: All specifications verified against Rockwell Automation Publication 750-TD001P-EN-P — PowerFlex 750-Series AC Drives Technical Data (July 2025). 20G21FD077JA0NNNNN appears in the 480V AC Three-phase Drives selection table, Frame 5; catalog number decoded from the Catalog Number Explanation table (p. 5-7); dimensions from the Frame 5 drawing set (p. 130-165); weight from the Approximate Weights table (p. 134).
Disclaimer: PLC Exchange is an independent reseller and is not an authorized distributor, affiliate, licensee, partner, or agent of Allen-Bradley / Rockwell Automation. All product information on this page is compiled from publicly-available manufacturer publications, technical data sheets, and catalog sources, each of which remains the copyright of its originating manufacturer. We make no representation or warranty, express or implied, regarding the accuracy, completeness, timeliness, or fitness for any particular purpose of the specifications or descriptions shown — content may contain errors, omissions, or out-of-date information. Product images are the property of their respective manufacturers, trademark owners, and source publications, and are displayed solely for identification purposes under the nominative fair use doctrine; images are representative and may depict a different configuration or catalog variant than the exact product listed. Purchasers should independently verify specifications against the current manufacturer publication before placing an order. All product names, trademarks, service marks, and registered trademarks are the property of their respective owners, and their use does not imply endorsement or affiliation.
Technical Notes for 20G21FD077JA0NNNNN
- Refer to the manufacturer's installation instructions for proper mounting, wiring, and configuration.
- Ensure compatibility with your existing system architecture before ordering.
- All 20G21FD077JA0NNNNN units sold by PLC Exchange are tested and ship in original factory packaging.
- For application-specific questions or system compatibility verification, contact PLC Exchange technical support at [email protected] or 980-202-0882.
Alternative Part Numbers & Names for 20G21FD077JA0NNNNN
The 20G21FD077JA0NNNNN by Allen-Bradley may also be found under the following alternative names, catalog numbers, or common search variations:
- Allen Bradley 20G21FD077JA0NNNNN
- Allen-Bradley 20G21FD077JA0NNNNN
All variations refer to the same Allen-Bradley product. If you are unsure whether this is the correct part for your application, contact our team for assistance.
Additional information
| Weight | 52.8 lbs |
|---|---|
| Dimensions | 21.7 × 10.6 × 8.3 in |
| warranty | 2.5 Year PLC Exchange Warranty, 30 Days worry-free return from delivery |
| upc | 195272322667 |
| mpn | 20G21FD077JA0NNNNN |
| manufacturer | Allen-Bradley |
| condition | Original Packaging |
Dimensions & Weight for 20G21FD077JA0NNNNN
| Shipping Dimensions | |
|---|---|
| Weight | 52.8 lbs |
| Length | 21.7 in |
| Width | 10.6 in |
| Height | 8.3 in |
| Box Dimensions (L×W×H) | 21.7 × 10.6 × 8.3 in |
Dimensions shown are for the shipping package. For module-level mechanical dimensions, refer to the manufacturer datasheet.
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Frequently Asked Questions
Where can I find the technical datasheet for the 20G21FD077JA0NNNNN?
The official manufacturer datasheet is available for download on the 20G21FD077JA0NNNNN product page at PLC Exchange. Look for the Tech Data PDF link in the product description.
Does the 20G21FD077JA0NNNNN include a warranty?
Yes. Every 20G21FD077JA0NNNNN sold by PLC Exchange includes a 2.5-year warranty (30 months, full replacement). Details: https://plcexchange.net/warranty-information/
What is the return policy for the 20G21FD077JA0NNNNN?
PLC Exchange offers a 30-day worry-free return policy. Eligibility and details: https://plcexchange.net/return-policy/
When will my 20G21FD077JA0NNNNN ship?
In-stock orders placed before 4 PM ET ship the same business day via free UPS Ground. Expedited options (Next Day Air, 2nd Day Air) are available at checkout.
Who manufactures the 20G21FD077JA0NNNNN?
The 20G21FD077JA0NNNNN is manufactured by Allen-Bradley. PLC Exchange is an independent reseller specializing in Allen-Bradley industrial automation products.
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