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Allen Bradley 22A-B8P0N104: PowerFlex 4 Specs & Buying Guide

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Allen Bradley 22A-B8P0N104

The Allen Bradley 22A-B8P0N104 is a PowerFlex 4 AC drive rated for 240V AC three-phase input and 8.0A continuous output, sized for a 1.5kW (2HP) induction motor. It is an open-loop Volts-per-Hertz drive built for simple speed control, not closed-loop or positioning work. Rockwell discontinued this catalog number on June 30, 2025, and that single fact shapes every buying decision today.

The unit is panel-mount IP20, NEMA/UL Type Open, with a fixed keypad, LED display, built-in RS485, and a braking IGBT. Typical efficiency is about 97.5%, and the I²t overload protection meets Class 10. If you are sourcing one in 2026, the real questions are which unit to buy and how to verify it.

Allen Bradley 22A-B8P0N104

What Exactly Is the Allen Bradley 22A-B8P0N104?

The 22A-B8P0N104 is the 240V three-phase, 8.0A member of the PowerFlex 4 (22A) family. That family is Allen Bradley’s entry tier of AC drives, aimed at OEMs and plants that need reliable speed control without advanced features. Motor control is Volts-per-Hertz only.

Key specifications at a glance:

  • Input: 240V AC three-phase, 50/60Hz, operating range 180–265V AC
  • Output: 8.0A continuous, rated for a 1.5kW (2HP) motor
  • Enclosure: Panel mount, IP20 / NEMA/UL Type Open, Frame Size A
  • Control: V/Hz with fixed keypad, LED display, and local potentiometer
  • Communications: built-in RS485, 2 analog inputs, discrete I/O
  • Protection: I²t overload (Class 10), overcurrent, overvoltage
  • Dynamic braking: brake IGBT included; external resistor required
  • Approvals: UL, cUL, CE, C-Tick (now RCM); power factor 0.98

None of that makes it a torque or motion controller. There is no sensorless vector mode and no closed-loop speed regulation. Simple fans, pumps, conveyors, and packaging machines are its natural habitat.

How to Decode the 22A-B8P0N104 Catalog Number

The part number encodes the entire hardware configuration. Once you can read it, you can also spot a wrong substitute instantly.

PositionCodeMeaning
Family22APowerFlex 4 compact AC drive
VoltageB240V AC, three-phase input
Current8P08.0A output current
EnclosureNPanel mount, IP20 / NEMA/UL open
HIM1Fixed keypad with LED display
Emission0No CE-compliant EMC filter
Brake4Braking IGBT included

Two digits deserve attention. The emission digit “0” means no CE-compliant EMC filter is fitted. The brake digit “4” confirms the dynamic braking IGBT is present.

Where the 22A-B8P0N104 Fits: Applications and Limits

This drive suits fixed-speed processes that benefit from adjustable speed. Typical deployments:

  • Conveyors and material handling lines
  • Fans and blowers seeking energy savings
  • Pumps replacing throttle-valve flow control
  • Packaging machinery needing consistent cycle speed
  • OEM equipment with tight cabinet space

Variable-torque loads (fans, pumps) run cooler at reduced speed. For conveyors, keep motor full-load amps at or below 8.0A and confirm startup torque fits V/Hz behavior.

Avoid it for high-inertia loads, regenerative applications, or anything requiring position control. Those need a higher PowerFlex tier.

Sizing and Compatibility Checks Before You Order

Three checks prevent most ordering mistakes:

  1. Motor match. Rate by full-load current, not nameplate HP. An 8.5A motor needs the 12.0A frame (22A-B012N104).
  2. Supply voltage. The 240V rating covers 180–265V, including 208V systems. Output is effectively derated at 208V, so keep load under 8.0A.
  3. Overcurrent protection. Rockwell’s quick-start guide specifies a 15A maximum fuse (or 140M-C2E-C16 protector) and a 100-C12 contactor option.

Thermal planning is part of the spec. Full-load heat dissipation is roughly 85W, and zero-gap side-by-side mounting is allowed at 40°C ambient. Above that, derate per Rockwell curves up to the 50°C ceiling.

22A-B8P0N104 vs. the PowerFlex 4M Replacement

Rockwell designated the PowerFlex 4M (25A series) as the engineering replacement. The 25A-B8P0N104 matches the same 240V, 8.0A, 1.5kW (2HP) rating and a similar frame size. Practical implications for buyers:

  • No new 22A units exist in Rockwell’s price book; only stocked inventory remains
  • The 25A-B8P0N104 stays in production with full warranty and support
  • Parameter sets and keypad layouts differ, so a swap means re-commissioning

New builds in 2026 usually go to the 4M. Existing fleets often buy new old stock (NOS) 22A units to keep spares identical. Both decisions are defensible; just be deliberate about which one you are making.

Main Product Series – Function & Application Comparison

Feature CategorySpecifications and OptionsKey Features
Power Range0.2 – 3.7 kWCompact size, cost-effective, ideal for OEM and simple industrial applications
Voltage Classes120V AC (1-phase), 240V AC (1/3-phase), 480V AC (3-phase)Wide input flexibility for global use
Enclosure OptionsIP20 Panel/Flange Mount, NEMA/UL Type OpenSpace-saving design; flange mount for machine integration
Control & I/OFixed keypad, RS485 comms, 2 analog inputs, multiple discrete I/OIntuitive operation with built-in LED display; easy PLC integration
Environmental LimitsUp to 50°C ambient, zero-gap mounting at 40°CReliable operation in demanding cabinet conditions

What to Verify When Buying a 22A-B8P0N104 in 2026

With production ended, sourcing is the decision. Price matters, but provenance matters more. Run through this checklist before committing:

  • Authenticity: check the Rockwell label, UPC 662453979601, and cross-check the serial number. Counterfeits do appear in surplus markets.
  • Condition: distinguish new old stock from used or refurbished units. Ask for photos of the keypad, terminals, and label.
  • Warranty: terms vary by seller. Confirm exactly what is covered and for how long.
  • Firmware: older stock may carry an earlier revision. Irrelevant for most V/Hz jobs, but confirm for validated lines.
  • Returns: surplus channels often exclude them. Factor that into the price.

Pricing has firmed as inventory thins. Stocking resellers such as SieSource (siesourcehk.com) list the drive at 581, down from a 633 list price, while used units go for less with higher verification risk. For a single replacement, verified NOS usually wins on total cost of ownership.

FAQ

Is the Allen Bradley 22A-B8P0N104 still in production? No. Rockwell discontinued it on June 30, 2025. New stock is gone; availability now comes from reseller inventory, surplus channels, and refurbishers.

What motor can the 22A-B8P0N104 run? A three-phase induction motor up to 1.5kW (2HP), provided the motor’s full-load current stays at or below 8.0A.

Can the 22A-B8P0N104 run on single-phase 240V? No. The “B” voltage code means three-phase input only. Single-phase 240V applications use the “A” code, such as the 22A-A2P1N113.

What does “no CE-compliant filter” mean? The emission digit “0” means the drive has no built-in EMC filter. For CE-marked machinery, use the filtered variant (22A-B8P0N114) or add an external RFI filter.

Does it include a braking IGBT? Yes, the brake digit “4” confirms it. You still need an external dynamic brake resistor to absorb braking energy.

What is the difference between 22A-B8P0N104 and 22A-B8P0N114? Only the EMC filter. Ratings, frame size, and brake IGBT are identical; the N114 variant includes the CE-compliant filter.

Where can I still buy a 22A-B8P0N104? Stocked resellers, surplus dealers, and refurbishers. Verify authenticity via the Rockwell label and UPC 662453979601 before payment.

Reference Sources

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