Description
The 20G11NC104JA0NNNNN is a high-performance PowerFlex 755 AC drive manufactured by Allen-Bradley / Rockwell Automation, engineered for demanding industrial motor control applications requiring precise speed, torque, or position regulation. This 400 V AC, 3-phase variable frequency drive delivers 104 A continuous output current, rated at 55 kW for normal duty (ND) and 45 kW for heavy duty (HD), housed in a Frame 5 open-type (IP20/IP00) enclosure with embedded Ethernet/IP connectivity. The 20G11NC104JA0NNNNN integrates forced-air cooling, an internal EMC filter with CM jumper pre-installed, a dynamic braking (DB) transistor, and AC input with DC terminals — providing a complete, ready-to-install motor control package for the Rockwell Logix automation ecosystem.
Application Scenarios
In a large-scale water treatment facility on the outskirts of a major metropolitan area, the existing 75 kW pump drives were causing severe energy waste due to constant-speed operation throttled by mechanical valves. The plant’s engineering team selected the 20G11NC104JA0NNNNN to retrofit four primary sludge pumps and two return activated sludge pumps. By leveraging the drive’s embedded Ethernet/IP port, the maintenance team integrated all six 20G11NC104JA0NNNNN units directly into their existing ControlLogix PAC without additional communication gateways. The drive’s PID control functionality enabled flow-based closed-loop regulation, automatically adjusting pump speed to match real-time process demand. Within the first year of operation, the facility reported a 32% reduction in energy consumption for pumping operations, while the built-in dynamic braking transistor safely dissipated regenerative energy during pump deceleration events. For plant managers overseeing aging motor control centers, the 20G11NC104JA0NNNNN represents a future-proof upgrade path that seamlessly bridges legacy infrastructure with modern connected enterprise architectures.
Parameter
| Main Parameters | Value/Description |
|---|---|
| Product Model | 20G11NC104JA0NNNNN |
| Manufacturer | Allen-Bradley / Rockwell Automation |
| Product Family | PowerFlex 755 AC Drive (Air-Cooled) |
| Input Voltage | 400 V AC, 3-phase (540 V DC bus) |
| Output Current | 104 A continuous (Normal Duty) |
| Power Rating – Normal Duty | 55 kW (75 HP) |
| Power Rating – Heavy Duty | 45 kW (85 A) |
| Frame Size | Frame 5 |
| Enclosure Rating | IP20/IP00, NEMA/UL Open Type |
| Communication | Embedded Ethernet/IP (single port) |
| Control Modes | V/Hz, PID, Closed-loop Vector, Torque Control, Positioning |
| Dynamic Braking | DB Transistor (built-in) |
| EMC Filtering | Integral EMC filter, CM jumper installed (preferred) |
| Cooling Method | Forced air (integral fan) |
| HIM (Human Interface Module) | Blank (No HIM included) |
| Overload Capacity – Normal Duty | 110% for 60 s, 150% for 3 s |
| Overload Capacity – Heavy Duty | 150% for 60 s, 180% for 3 s |
| Operating Temperature | -20°C to +60°C |
| Storage Temperature | -40°C to +70°C |
| Dimensions (H × W × D) | 550 mm × 270 mm × 212 mm |
| Weight | 21 kg |
| Certifications | CE, UL Listed, ATEX, RINA, ABS, cUL, EAC, RoHS |
| Lifecycle Status | Active Mature (Repairable/Replaceable) |
| Standard Warranty | 1 year |
Technical Principles and Innovative Values
Innovation Point 1: Embedded Ethernet/IP with Seamless Logix Integration. The 20G11NC104JA0NNNNN features a native single-port Ethernet/IP interface that allows direct connection to ControlLogix and CompactLogix PACs. Drive instructions are embedded directly within the PAC programming environment, eliminating the need for complex messaging logic or third-party gateway hardware. This tight integration enables the 20G11NC104JA0NNNNN to share real-time operational data — including speed feedback, torque output, fault codes, and energy consumption — across the entire Logix architecture, dramatically simplifying commissioning and diagnostics.
Innovation Point 2: Slot-Based Modular Hardware Architecture. Unlike fixed-configuration drives, the 20G11NC104JA0NNNNN employs a slot-based design that accommodates optional expansion cards. Users can add dual-port Ethernet/IP cards, additional I/O modules, encoder feedback cards, or safety option cards (such as Hardwired Safety or Hardwired Safe Speed) to tailor the drive precisely to application requirements. This flexibility allows the 20G11NC104JA0NNNNN to evolve alongside changing production needs without replacing the entire drive.
Innovation Point 3: Integrated DeviceLogix™ Smart Component Technology. The 20G11NC104JA0NNNNN incorporates DeviceLogix™, enabling the drive to execute local logic control independently of the supervisory controller. This means the drive can manage outputs, process status information, and make autonomous decisions based on preset conditions — ensuring continued safe operation even if communication with the central PLC is temporarily lost. For mission-critical applications such as hoisting, the 20G11NC104JA0NNNNN also includes built-in torque proving software that simplifies configuration for overhead cranes and elevator systems.
Innovation Point 4: Predictive Diagnostics and Built-in Protection. The 20G11NC104JA0NNNNN continuously monitors its own health parameters — including IGBT temperature, DC bus voltage, fan status, and output phase balance — providing early warning of potential failures before they cause unplanned downtime. Combined with the integral EMC filter, CM jumper, and dynamic braking transistor, the 20G11NC104JA0NNNNN delivers a robust, self-protecting motor control solution that maximizes mean time between failures (MTBF).
