Technical Data · Publication 750-TD001 · Rockwell Automation

PowerFlex 755 / PowerFlex 753 / PowerFlex 755 w/ Options — Technical Data (750-TD001)

Complete specifications, catalog-number breakdown, power ratings, dimensional data, and selection tables for the Allen-Bradley PowerFlex 750-Series AC drives (Bulletins 20F / 20G / 21G — PowerFlex 753, PowerFlex 755, and PowerFlex 755 with Options). Mirrored from Rockwell Automation Publication 750-TD001P-EN-P.

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750-TD001P-EN-P Publication
20F Bulletins
0.5–400 HP Power Range
208–240V, 380–480V, 60… Voltage Classes

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Specifications

Power Ratings & Frames

PowerFlex 753 (20F) 0.5–400 HP (0.37–270 kW), Frames 1–7 wall mount
PowerFlex 755 (20G) 0.5–2000 HP (0.37–1500 kW), Frames 1–10 (wall + floor mount)
PowerFlex 755 w/ Options (21G) Frames 8–10 floor mount, MCC-style cabinet with integrated disconnect / reactors / contactors
Voltage classes 240V AC, 400/480V AC, 600V AC, 690V AC (690V not UL Listed)
Input phases Three-phase for full ratings; Frames 1–7 support single-phase at 50% derate
Input frequency 47–63 Hz
Duty cycles Normal Duty (150% / 60 s, 180% / 3 s) and Heavy Duty (150% / 60 s, 180% / 3 s); 21G also supports Light Duty (110% / 60 s)
Efficiency 97.5% at rated amps, nominal line voltage

Control & Performance

Modulation Sine-coded PWM with programmable carrier frequency (2/4/8/12 kHz depending on frame)
Motor control modes V/Hz, Sensorless Vector, Flux Vector (with/without feedback), Induction, Surface-mount PM, Internal PM
Output frequency 0–325 Hz at 2 kHz carrier, 0–590 Hz at 4 kHz carrier
Speed regulation ±0.1% of base speed (Flux Vector, no feedback); ±0.001% (Flux Vector with feedback)
Speed bandwidth 50 rad/s (no feedback), 190 rad/s (with feedback)
Torque regulation ±5% / 600 rad/s (no feedback); ±2% / 2500 rad/s (with feedback)
Overload capability Normal Duty: 110% / 60 s, 150% / 3 s. Heavy Duty: 150% / 60 s, 180% / 3 s.
Stop modes Ramp, Coast, DC-Brake, Ramp-to-Hold, Fast Braking, Current Limit Stop

Communication & I/O

Built-in port (PF755 20G) Dual-port EtherNet/IP (embedded on main control board)
Add-on Ethernet (PF753) 20-750-ENETR single-port or 20-750-ENET2P dual-port option module
Option slots Slot-based architecture (PF753 has 3 slots + built-in I/O; PF755 has 5 slots)
DeviceLogix Embedded logic engine for local I/O manipulation without upstream controller
Predictive diagnostics Tracks fan / relay / bearing runtime hours; prognostic fault alerts
Door-mounted HIM (Frames 8–10) Enhanced LCD Full Numeric — IP20 or IP66/Type 4X/12 per catalog code i

Safety

Safe Torque Off (STO) Hardware STO via 20-750-S safety option — SIL 2 / PL d / Cat 3 (TÜV Rheinland)
Safe Speed Monitor 20-750-S1 adds Safe Speed Monitor for SIL 3 / PL e / Cat 4 per EN ISO 13849-1
Integrated Safety — STO 20-750-S3 CIP Safety over EtherNet/IP — STO commanded from GuardLogix
Integrated Safety Functions 20-750-S4 adds Safe Stop, Safe Limited Speed, Safe Direction, etc. over CIP Safety
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

Environmental & Protection

Operating temperature 0–50°C IP20 Open (Frames 1–5 all ratings); 0–40°C Frames 6–10 (derate above)
Storage temperature -40 to +70°C (-40 to +158°F), all constructions
Relative humidity 5–95%, non-condensing
Altitude Up to 9000 m (29,527 ft) for 208/240V center-grounded, Category II; 4800 m for 600V; derate per guidelines
Pollution degree PD 1–2 any enclosure; PD 3–4 requires IP54 / NEMA Type 12
Shock (operating) 15 g peak / 11 ms (Frames 1–6), 10 g peak / 11 ms (Frame 7), power core 10 g (Frames 8–10)
Enclosure types IP00 / IP20 Open, IP20 NEMA/UL Type 1, IP54 NEMA Type 12, IP66 NEMA Type 4X (Flange), 2500/2100 MCC style
Nominal bus voltage 281V DC (208V input), 324V DC (240V), 540V DC (400V), 648V DC (480V), 810V DC (600V), 932V DC (690V)

Catalog Number Format

How to read an Allen-Bradley 20G catalog number. Each position encodes a specific configuration attribute.

Position
Meaning
Example
a (pos 1–3)
Drive family / bulletin prefix — 20F = PowerFlex 753 (Frames 1–7), 20G = PowerFlex 755 (Frames 1–10), 21G = PowerFlex 755 with Options (Frames 8–10)
20G = PowerFlex 755
b (pos 4)
Reserved for future use
1
c (pos 5)
Input type — 1 = AC input w/ precharge and DC terminals (Frames 1–5), 4 = DC input w/ precharge (Frames 5–10), A = AC input w/ precharge, no DC terminals (Frames 6–10)
A = AC input, no DC terminals
d (pos 6)
Voltage class — B = 240V AC, C = 400V AC, D = 480V AC, E = 600V AC, F = 690V AC
D = 480V AC
e (pos 7)
Enclosure — R = IP20 Open Frame 1; F = Flange NEMA/UL Type 4X/12; G = IP54 NEMA/UL Type 12; N = IP20/IP00 Open; B/J/K/L/P/W/Y/T = floor-mount cabinet variants (Frames 8–10)
N = IP20 Open
f1–f6 (pos 8–10)
ND current / kW / HP rating code (e.g., 2P2 = 2.2 A, 022 = 22 A, 248 = 248 A, 1K4 = 1400 A). Varies by voltage class table.
248 = 248 A (200 HP @ 480V)
g (pos 11)
Filtering and CM-cap configuration — A = filtered, jumper removed; J = filtered, jumper installed
A
h (pos 12)
Dynamic braking — A = no internal resistor, internal transistor; N = no resistor, no transistor. Standard on Frames 1–5; optional Frames 6–7; not available Frames 8–10.
A
i (pos 13)
Door-mounted HIM (Frames 8–10) — 0 = no HIM, 2 = Enhanced LCD IP20, 4 = Enhanced LCD IP66 NEMA 4X/12
0
pos 14–18
Not used (reserved NNNNN)
NNNNN
21G suffix (LD–P3–P11…)
PowerFlex 755 w/ Options only: LD/ND/HD duty code, P3/P5/P14 disconnect, plus P11/P12 contactors, L1–L4 reactors, P20/P22/P24 MCC bus, P30 UPS bus, X1 aux transformer
LD-P3-P11

Communication Protocols

Supported industrial networks and field buses for the products covered by this publication.

EtherNet/IP (dual-port, embedded) Standard on PowerFlex 755 (20G/21G); linear/DLR topologies supported EtherNet/IP (option module) 20-750-ENETR single-port or 20-750-ENET2P dual-port — required on PowerFlex 753 CIP Safety over EtherNet/IP Via 20-750-S3 or 20-750-S4 Integrated Safety option cards (controlled from GuardLogix) DeviceNet Via 20-750-DNET option module (CIP over CAN) ControlNet Via 20-750-CNETC coax option module PROFIBUS DP Via 20-750-PBUS option module PROFINET Via 20-750-PNET2P option module Modbus TCP Native over the embedded or add-on Ethernet port Modbus RTU / RS-485 Via 20-750-20COMM bridge to legacy 22-COMM-B Legacy 22-COMM adapters Not directly supported — use 20-750-20COMM gateway to connect 22-COMM-D / -P / -C / -B adapters

Certifications & Compliance

UL 508C Listed (c-UL-us, CSA22.2 No. 14) — does not apply to 21G drives with enclosure code K, P, W, or Y CE Marked — EMC Directive 2014/30/EU (EN 61800-3), Low Voltage Directive 2014/35/EU (EN 61800-5-1), ATEX Directive 2014/34/EU (TÜV 12 ATEX 7328 X, EN 50495) UKCA — EMC Regulations 2016 No. 1091, LVD Regulations 2016 No. 1101, Explosive Atmospheres 2016 No. 1107 (TÜV 21 UKEX 7032 X, EN 50495) RCM (Australia / New Zealand) — Radiocommunications Act 1992, EN 61800-3 EAC (Russia / Kazakhstan / Belarus) — Low Voltage TP TC 004/2011, EMC TP TC 020/2011 KCC (Korea) — R-R-RAA-Drive ABS (American Bureau of Shipping) Certificate 11-HS743429 Lloyd's Register Type Approval Certificate 11/60008 (drives manufactured before 6/28/2016) SEMI F47 / IEC 61000-4-34 (voltage sag immunity) Morocco — NM EN 61800-5-1 TÜV Rheinland Functional Safety — 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 (for 20-750-S, -S1, -S3, -S4 safety options) Ecodesign Regulation (EU) 2019/1781 — IE2 efficiency class (see publication PFLEX-TD003)

Document Contents

Full PDF covers the following topics in detail:

  • Catalog-number decoder for Bulletins 20F, 20G, and 21G — positions a through i plus 21G option suffix (LD/ND/HD duty, P3/P5 disconnect, P11/P12 contactors, L1–L4 reactors, P20/P22/P24 MCC bus, P30 UPS bus, X1 aux transformer)
  • Product selection tables for PowerFlex 753 — 240V, 400V, 480V, 600V, and 690V three-phase drives across IP00/IP20 Open, IP54 Type 12, and Flange constructions
  • Product selection tables for PowerFlex 755 — same voltage classes plus Frames 8–10 floor-mount and common-bus DC-input configurations
  • Certifications and functional-safety standards (UL, CE, UKCA, RCM, EAC, KCC, ABS, Lloyd's, SEMI F47, TÜV Rheinland safety)
  • Design considerations — input voltage tolerance, approximate watts loss, motor lead length, drive-to-motor HP ratio, altitude / temperature derating
  • Fuse and circuit breaker ratings — SCCR ratings (200,000 A RMS for 20F/20G) and recommended branch-circuit protection
  • Cable, motor, and encoder wiring considerations including shield, grounding, and maximum lead-length tables
  • Dimensional drawings and weights for every frame size, wall-mount and floor-mount
  • Drive options — I/O modules, feedback cards, safety cards, communication adapters, HIMs, reactors, EMC filters, line reactors, dynamic brake resistors, roll-out cart
  • Connectivity to CENTERLINE 2100 Motor Control Center and PowerFlex 755 Empty Option Bay accessory catalog

Frequently Asked Questions

What is the difference between the PowerFlex 753, PowerFlex 755, and PowerFlex 755T?
The PowerFlex 753 (Bulletin 20F) is the general-purpose 750-Series drive rated up to 400 HP / 270 kW, Frames 1–7 wall mount, with 3 option slots plus built-in I/O. The PowerFlex 755 (20G) is the performance tier — up to 2000 HP / 1500 kW, Frames 1–10 (wall + floor), 5 option slots, dual-port EtherNet/IP embedded, Integrated Safety support, and permanent-magnet motor control. The PowerFlex 755 with Options (21G) is a Frames-8–10 floor-mount variant pre-packaged in a 2500 or 2100 MCC-style cabinet with factory-installed disconnect, reactors, contactors, MCC bus, and UPS control bus. PowerFlex 755T is a separate platform (TotalFORCE, Bulletins 20J/20M/20N) not covered in Publication 750-TD001.
How do I pick a frame size?
Frame is driven by the ND (Normal Duty) amp/HP rating for your voltage class. Frames 1–5 are IP20 NEMA/UL Type 1 wall mount; Frames 6–7 are IP00 NEMA/UL Type Open wall mount (convertible to IP20 Type 1 with kit 20-750-NEMA1-Fx); Frames 8–10 are floor-mount cabinets. Cross the required continuous amps (or HP) on the ND column of the relevant voltage-class table in Publication 750-TD001 — the row gives the frame number and the Cat. No.
When is a feedback device required?
V/Hz, Sensorless Vector, and Flux Vector without feedback run on any induction motor. Full Flux Vector performance (±0.001% speed regulation, 190 rad/s speed bandwidth, ±2% torque / 2500 rad/s torque bandwidth) requires an encoder / resolver feedback card in an option slot. Surface-mount and internal permanent-magnet motor control also require feedback for closed-loop operation on PowerFlex 755 (Frames 1–10); PowerFlex 753 supports open-loop PM on Frames 1–7 only.
What's the difference between basic STO and the Integrated Safety option?
Basic Safe Torque Off is provided by the 20-750-S hardware option — STO is wired directly from a safety relay, achieves SIL 2 / PL d / Cat 3, and is appropriate for machinery with a single-input safety demand. The 20-750-S1 adds Safe Speed Monitor for SIL 3 / PL e / Cat 4. The Integrated Safety options (20-750-S3 STO-only, 20-750-S4 full Safe Stop / Safe Limited Speed / Safe Direction) use CIP Safety over EtherNet/IP — the safety demand comes from a GuardLogix controller across the network, eliminating hard-wired safety circuits and simplifying multi-drive coordinated stops.
Can I use legacy 22-COMM adapters on a PowerFlex 750-Series drive?
Not directly. The 750-Series uses the 20-750-series option slot (not the DPI port on PowerFlex 4/40/70/700/525). To connect 22-COMM-D (DeviceNet), 22-COMM-P (PROFIBUS), 22-COMM-C (ControlNet), or 22-COMM-B (RS-485 Modbus) adapters, install a 20-750-20COMM gateway in an option slot; the gateway bridges DPI-based adapters into the drive. For new installations, prefer the native 20-750-series modules (20-750-DNET, 20-750-CNETC, 20-750-PBUS, 20-750-PNET2P).
Does the PowerFlex 755 have built-in Ethernet?
Yes. Every PowerFlex 755 (Bulletin 20G and 21G) ships with embedded dual-port EtherNet/IP supporting linear and Device Level Ring (DLR) topologies. The PowerFlex 753 (Bulletin 20F) does NOT include embedded Ethernet — add the 20-750-ENETR single-port or 20-750-ENET2P dual-port option module if Ethernet is required.
What input voltages are supported, and is single-phase operation allowed?
Four voltage classes: 200…240V AC, 380…480V AC, 600V AC, and 690V AC (690V is not UL Listed). Each class has its own catalog-number table. Three-phase input provides full rating on every drive. Single-phase input is allowed only on Frames 1–7 (up to 456 A output) at 25°C ambient with a 50% current derate. Single-phase operation is not recommended for Frames 8–10.

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