20AC8P7A0AYNANC0 — 70 Series AC Drive, 400V Three-Phase, 4 kW / 5 HP, Frame B

The 20AC8P7A0AYNANC0 is a 4 kW / 5 HP variable frequency drive from the 70 series, configured for 400V AC three-phase input (360–440V range) with 8.7A output current under Normal Duty rating, or 3 kW Heavy Duty. It carries enhanced control firmware with onboard 24V DC I/O, an integrated EMC filter for CE compliance in second-environment installations, a brake IGBT for dynamic braking (external resistor required), and conformal coating on the circuit boards for protection in environments with humidity or airborne contaminants. This particular configuration ships without a HIM (blank cover plate) and without a communication module installed.

Specifications

Parameter	Value
Part Number	20AC8P7A0AYNANC0
Series	70 Series
Frame Size	B
Output Current (Normal Duty)	8.7 A
Motor Power (Normal Duty)	4 kW / 5 HP
Motor Power (Heavy Duty)	3 kW
Input Voltage	360–440V AC, Three-Phase
Control Modes	Sensorless Vector, Vector with FORCE Technology (no encoder required)
Switching Frequency	4 kHz (sinusoidal PWM)
Speed Regulation	0.1% with slip compensation
Output Frequency Accuracy	±0.01% of set frequency
Power Ride-Through	15 ms tripless ride-through (inertia-based)
Overload Capacity	110% for 60 seconds
EMC Filter	Integrated, second-environment (CE 89/336/EEC)
Conformal Coating	Yes
HIM	Not included (blank cover plate)
Communication Module	Not installed
Enclosure	IP20 / NEMA Type 1
Standards	UL, CE

Frame B at 4 kW — Application Fit

At 5 HP on 400V three-phase, this drive sits in the everyday range of industrial motor applications: pumps, fans, conveyor sections, and small compressors in facilities running 400V distribution common across much of Europe and parts of Asia. The conformal-coated circuit boards extend the drive's reliable service life in environments with airborne moisture, dust, or mild chemical exposure — washdown-adjacent food processing areas, coastal facilities, or plants with significant ambient humidity. The combination of sensorless vector and the encoder-free vector mode covers both general-purpose centrifugal loads and applications needing better low-speed torque without the cost and complexity of feedback hardware.

Shipping without a HIM (blank cover) and without a communication module reflects an installation where local keypad access isn't required day-to-day and network connectivity isn't part of the initial scope. Both can typically be added later via the drive's option slots if the application's requirements change — verify slot compatibility and firmware revision before specifying an add-on HIM or communication card for a unit configured this way.

Ride-Through and Protection

The 15 ms inertia ride-through function lets the drive continue operating through brief power interruptions by drawing on the rotational energy of the connected load — relevant for high-inertia, low-friction loads like large fans and flywheel-type equipment, where a 15 ms gap in supply voltage would otherwise trip the drive on a momentary sag or transfer switch operation. For loads with low inertia or high friction, the ride-through benefit is smaller since the load decelerates faster during the interruption.

Standard protection functions include ground fault detection, line transient spike protection, and overtemperature monitoring, along with DC bus voltage regulation with current-limiting to manage transient bus conditions without an immediate fault trip. The dual independent acceleration/deceleration time settings allow different ramp profiles for different operating modes — useful where a process needs a slow, controlled start but a faster stop, or vice versa, without reprogramming between cycles.

FAQ

Q: Can a HIM be added to this drive after the fact, since it ships with a blank cover?

Yes, in most cases. The blank cover occupies the HIM mounting position, and a compatible HIM module can typically be installed in its place. Verify the HIM catalog number is compatible with this drive's firmware and frame size before ordering.

Q: Is an external resistor required for the dynamic braking function?

Yes. The drive has the brake IGBT installed internally, but no drive-mounted brake resistor is included with this configuration. An appropriately sized external resistor must be connected to the brake terminals for dynamic braking to function.

Q: Does the integrated EMC filter eliminate the need for an external line filter?

For second-environment (industrial) installations under the CE EMC directive, the integrated filter is generally sufficient on its own. For first-environment (residential/light commercial) installations with stricter emission limits, an additional external filter may still be required depending on motor cable length and the specific installation's EMC testing results.

Q: What control mode should be used if no encoder is available and low-speed torque matters?

The vector control mode with FORCE Technology is designed specifically for this case — it delivers improved torque and speed control at low frequencies without requiring encoder feedback, adapting its internal model to the connected motor's characteristics during commissioning.

Q: Can the 110% overload rating be used repeatedly throughout a shift?

The 110% for 60 seconds overload rating is intended for occasional transient load increases, not continuous cyclic operation. Repeated overload events in short succession can trigger thermal protection before the rated 60 seconds elapses on a subsequent cycle, since the drive's thermal model accounts for cumulative heating across closely spaced events.

20AC8P7A0AYNANC0 New AC Drive 8.7 A 4 KW 20AC8P7A0AYNANC0