The Allen-Bradley 25A-V1P6N104 is a AC adjustable-frequency drive — PowerFlex 523 for industrial control and automation applications.

How do you keep a small motor-driven skid running reliably when the only available supply is a 120V single-phase circuit? The Allen-Bradley 25A-V1P6N104 answers that question: a PowerFlex 523 adjustable-frequency drive rated 0.2 kW (0.25 HP) at 1.6 A continuous output, fed from a 100…120V AC single-phase input. It is a Frame A, IP20 NEMA/Open Type unit with a standard interface module, integral brake IGBT and no integral EMC filter.

What makes the PowerFlex 523 25A-V1P6N104 suited to field service?

This drive belongs to the PowerFlex 520-series platform, and its catalog number decodes cleanly: 25A for the 523 member, V for the 100…120V AC class, 1P6 for the 1.6 A rating, N for IP20 open type, 1 for the standard interface, 0 for no EMC filter and 4 for the standard brake IGBT. For oil and gas sites, that transparency matters when a technician has to match a replacement to an existing panel without guesswork.

The control platform covers Volts/Hertz, sensorless vector control and Economizer SVC. Speed regulation without an encoder reaches ±0.5 % across a 100:1 range in SVC modes, and ±1 % of base speed across a 60:1 range in V/Hz. Output frequency is programmable from 0…500 Hz, and four independent accel/decel times are each adjustable from 0…600 s in 0.01 s increments.

Key specifications at a glance

• Input voltage: 100…120V AC, 1-phase, with -15 % / +10 % tolerance.
• Input frequency: 47…63 Hz.
• Rated output: 0.2 kW (0.25 HP) normal duty and heavy duty, 1.6 A maximum continuous.
• Output voltage: 0 V to rated motor voltage, three-phase at T1, T2 and T3.
• Efficiency: 97.5 % typical.
• Power dissipation: 20 W total at rated load and rated speed.
• Enclosure: IP20 NEMA/Open Type, Frame A, panel mount.
• Dimensions: 152.0 H × 72.0 W × 172.0 D mm; weight 1.1 kg.
• Operating temperature: -20…+50 °C without derating in vertical IP20 mounting.
• Communication: 1 × RS-485 DSI port on RJ45 terminal C1.

The temperature window deserves attention. In vertical IP20 mounting the drive runs to +50 °C without derating, to +60 °C derated, and to +70 °C with the optional 25-FANx-70C control module fan kit. Storage spans -40…+85 °C, and relative humidity may reach 95 % non-condensing. These are the figures that decide whether a drive survives a West Texas summer or a winterized Canadian enclosure.

How does the drive handle power quality and protection?

Protection is built around the realities of a 120V supply. The DC bus overvoltage trip sits at 405 V DC, equivalent to a 150 V AC incoming line, while the undervoltage trip is 190 V DC, equivalent to 75 V AC. Power ride-through is 100 ms, and logic control ride-through is 0.5 s minimum, 2 s typical. Overcurrent limits are 200 % hardware and 300 % instantaneous fault.

Electronic motor overload protection provides class 10 protection according to NEC article 430, with UL 508C File 29572. Ground fault and short-circuit trips act on the drive output. The displacement power factor is 0.98 across the entire speed range, and the maximum short-circuit rating is 100,000 A symmetrical, determined by the installed fuse or circuit breaker.

Integration and communications

The built-in RS-485 DSI port supports Modbus RTU with function codes 03, 06 and 16. Network parameters include C123 data rate from 1200…38400 bit/s, C124 node address 1…247 and C127 format RTU 8-N-1 by default. Communication-loss handling is configurable through C125 and C126, with a default 5.0 s timeout.

Only pins 4 and 5 of the RJ45 connector carry the network; the remaining pins must not be connected. Termination resistors belong at each end of the cable, and network wiring should be separated from power wires by at least 0.3 m. For EtherNet/IP, PROFIBUS DP-V1, DeviceNet or PROFINET, the 520-series option cards 25-COMM-E2P, 25-COMM-P, 25-COMM-D and 25-COMM-PNET2P are listed for the platform; PowerFlex 523 supports one card. Integration Note: wiring into such networks may require an external gateway or connection module, so confirm cables and gateways with the supplier before commissioning.

Where this drive fits in oil and gas operations

Small packaged equipment often runs on 120V control power. This drive suits metering pumps, sample-conditioning skids, small blowers and valve-actuator support systems where a 0.25 HP motor needs controlled acceleration. The IP20 open-type enclosure is intended for installation inside a larger cabinet, and the 25-JBAx option kit converts it to IP30 / NEMA 1 / UL Type 1 when a guarded enclosure is required.

Because the drive produces leakage current above 3.5 mA AC and/or 10 mA DC in the protective earthing conductor, the earthing conductor must meet local regulations for high protective-earthing-current equipment. Harmonic current emissions on the supply are the installer's responsibility when operating on a public low-voltage network.

Reliability and maintenance

Fan cooling is the primary wear point. Inspect the fan and heatsink airflow on a scheduled basis, particularly in dusty or humid locations. Keep the ambient atmosphere free of volatile or corrosive gases, vapors and dust; the conformal coating complies with IEC 60721-3-3 level 3C2 for chemical and gases only. Vibration tolerance is 2 g operating and 2.5 g non-operating for Frame A, and shock tolerance is 15 g operating and 30 g non-operating.

For altitude, 1000 m is the maximum without derating, with operation up to 4000 m permitted under derating. Sound pressure for Frame A is 53 dBA measured 1 m from the drive. These are field-proven limits that support dependable operation in demanding environments.

Certifications and compliance

The drive is c-UL-us Listed to UL 508C and CSA C22.2 No. 274, and to UL 61800-5-1 and CSA 22.2 No. 274-17. CE declaration covers the Low Voltage, EMC, Machinery and RoHS directives to EN 61800-3 and EN 61800-5-1. UKCA, RCM and KC registrations are also published. Note that ATEX and functional safety rows apply to PowerFlex 525 drives only, and no embedded Safe Torque Off function is published for the 523.

Frequently asked questions

What input voltage does This unit require?

The Allen-Bradley unit accepts 100…120V AC single-phase input at 47…63 Hz, with a tolerance of -15 % / +10 %.

Can This unit run a three-phase motor?

Yes. The Allen-Bradley unit delivers three-phase output from 0 V to rated motor voltage at terminals T1, T2 and T3, with output frequency programmable from 0…500 Hz.

Does this drive include an EMC filter?

No. The Allen-Bradley unit has no integral EMC filter; external filters provide EN 61800-3 Category C1, C2 or C3 compliance.

What is the operating temperature range?

The Allen-Bradley unit operates from -20…+50 °C without derating in vertical IP20 mounting, up to +60 °C derated, and up to +70 °C with the 25-FANx-70C fan kit.

How is the drive connected to a network?

The Allen-Bradley unit uses its built-in RS-485 DSI port on RJ45 terminal C1 for Modbus RTU; other protocols require a 520-series communication option card.

Contact PetroPartsOnline for parts suited to your application's requirements.

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