Products Description
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Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Allen-Bradley |
| Series | PowerFlex 700 |
| Product Type | AC Drive / Variable Frequency Drive |
| Catalog Number | 20BR125A3ANNANC0 |
| Frame Size | Frame 5 |
| Input Voltage | 650 V DC precharge |
| Input Phase | 3-phase |
| Output Phase | 3-phase |
| Input Current | 137.1 A @ 650 V DC |
| Rated Output Current | 125 A |
| Normal-Duty Rating | 100 HP |
| Heavy-Duty Rating | 75 HP |
| Heavy-Duty Continuous Current | 96 A |
| Heavy-Duty Current, 1 Minute | 144 A |
| Heavy-Duty Current, 3 Seconds | 168 A |
| Control Method | Vector control with 24 V DC I/O |
| Selectable Motor Control | Sensorless Vector, V/Hz, Vector Control |
| Feedback | No feedback |
| Analog Inputs | 2 |
| Analog Outputs | 2 |
| Digital Inputs | 6 |
| Digital Outputs | 3 |
| Maximum Output Frequency | 420 Hz |
| Carrier Frequency | 2, 4, 8, and 10 kHz |
| Overload Capability | 110% for 1 minute, 150% for 3 seconds |
| Programmable Current Limit | 20–160% of rated output current |
| Instantaneous Current Limit | 220–300% of rated current, depending on drive rating |
| Brake IGBT | None |
| Internal Brake Resistor | None |
| EMC Filtering | EMC filter with common-mode choke |
| Internal Communication Module | None |
| Human Interface | LCD display with full numeric keypad and programming keys |
| Enclosure Rating | IP20 / NEMA/UL Type 1 |
| Motor Overload Protection | Class 10 |
| Speed Regulation | Approximately 0.1% of base speed over 120:1 in vector control without feedback |
| V/Hz Speed Regulation | Approximately 0.5% of base speed over 40:1 with slip compensation |
| Acceleration / Deceleration | 0–3600 seconds, independently programmable |
| Efficiency | 97.5% at rated current and nominal line voltage |
| Displacement Power Factor | 0.98 |
| Power Ride-Through | 15 ms at full load |
| Logic Control Ride-Through | 0.5 s minimum, 2 s typical |
| Input Voltage Tolerance | ±10% |
| Maximum Short-Circuit Rating | 200,000 A symmetrical, subject to specified installation conditions |
| Operating Temperature | 0–50 °C |
| Relative Humidity | 5–95%, non-condensing |
| Maximum Altitude Without Derating | 1000 m |
| Sound Level | 71 dB @ 200 CFM fan velocity |
| Dimensions (H × W × D) | 689.6 × 308.9 × 275.4 mm |
| Weight | 37.19 kg |
FAQ
FAQ
Q1: What is the Allen-Bradley 20BR125A3ANNANC0?
A: The 20BR125A3ANNANC0 is an Allen-Bradley PowerFlex 700 variable frequency drive designed for industrial motor speed and torque control in DC-bus-powered applications.
Q2: What are the input voltage and rated output current?
A: The supplied specifications list a 650 V DC precharged input and a rated output current of 125 A. Verify the nameplate and installation documentation before connecting the drive.
Q3: What motor power ratings does this drive support?
A: The listed ratings are 100 HP for normal duty and 75 HP for heavy duty. Motor selection should also account for rated current, load profile, and required overload performance.
Q4: What motor control modes are supported?
A: The listed control modes include Sensorless Vector, V/Hz, and Vector Control. The appropriate mode depends on the application’s speed regulation and torque requirements.
Q5: Does the 20BR125A3ANNANC0 support encoder feedback?
A: The supplied specifications identify this configuration as having no feedback. Confirm the installed hardware and control configuration if closed-loop speed regulation is required.
Q6: Does this model include a braking IGBT or internal brake resistor?
A: The supplied configuration lists neither a braking IGBT nor an internal brake resistor. Applications requiring dynamic braking may need compatible external equipment.
Q7: What are the dimensions and weight of this drive?
A: The supplied reference dimensions are 689.6 × 308.9 × 275.4 mm (H × W × D), and the listed weight is 37.19 kg. Confirm these values against the manufacturer’s dimensional drawing before installation.
Q8: What should be checked before installing or replacing this drive?
A: Verify the DC bus voltage, motor current, duty rating, cooling and ventilation, enclosure protection, grounding, wiring, braking requirements, and compatibility with the existing control system.
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Packing & Delivery
We will use wear-resistant cartons to seal the boxes, and take photos for your confirmation before sealing. We will pack the boxes only after confirmation.
For express delivery, we will use DHL, UPS, TNT, FedEx and EMS.
Please rest assured that we have a deep cooperation with express delivery companies and can ensure that your goods are delivered to you in good condition.
