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Description
ATV312HU55N4Main Range of product Altivar 312 Product or component type Variable speed drive Product destination Asynchronous motors Product specific application Simple machine Assembly style With heat sink Component name ATV312 Motor power kW 5. 5 kW Motor power hp 7. 5 hp [Us] rated supply voltage 380 500 V 15 10 % Supply frequency 50 60 Hz 5 5 % Network number of phases 3 phases Line current 21. 9 A at 380 V, Isc = 22 kA 16. 5 A at 500 V EMC filter Integrated
Main
| Range of product | Altivar 312 |
| Product or component type | Variable speed drive |
| Product destination | Asynchronous motors |
| Product specific application | Simple machine |
| Assembly style | With heat sink |
| Component name | ATV312 |
| Motor power kW | 5.5 kW |
| Motor power hp | 7.5 hp |
| [Us] rated supply voltage | 380...500 V - 15...10 % |
| Supply frequency | 50...60 Hz - 5...5 % |
| Network number of phases | 3 phases |
| Line current | 21.9 A at 380 V, Isc = 22 kA 16.5 A at 500 V |
| EMC filter | Integrated |
| Apparent power | 15 kVA |
| Maximum transient current | 21.5 A for 60 s |
| Power dissipation in W | 232 W at nominal load |
| Speed range | 1…50 |
| Asynchronous motor control profile | Factory set : constant torque Sensorless flux vector control with PWM type motor control signal |
| Electrical connection | Al1, Al2, Al3, AOV, AOC, R1A, R1B, R1C, R2A, R2B, LI1...LI6 terminal 2.5 mm² AWG 14 L1, L2, L3, U, V, W, PA, PB, PA/+, PC/- terminal 16 mm² AWG 6 |
| Supply | Internal supply for logic inputs: 19...30 V 100 mA, protection type: overload and short-circuit protection Internal supply for reference potentiometer (2.2 to 10 kOhm): 10...10.8 V 10 mA, protection type: overload and short-circuit protection |
| Communication port protocol | Modbus CANopen |
| IP degree of protection | IP20 on upper part without cover plate IP21 on connection terminals IP31 on upper part IP41 on upper part |
| Option card | Communication card for CANopen daisy chain Communication card for DeviceNet Communication card for Fipio Communication card for Modbus TCP Communication card for Profibus DP |
Complementary
| Supply voltage limits | 323…550 V |
| Network frequency | 47.5...63 Hz |
| Prospective line Isc | 22 kA |
| Continuous output current | 14.3 A at 4 kHz |
| Output frequency | 0…500 kHz |
| Nominal switching frequency | 4 kHz |
| Switching frequency | 2...16 kHz adjustable |
| Transient overtorque | 170…200 % of nominal motor torque |
| Braking torque | 150 % during 60 s with braking resistor 100 % with braking resistor continuously 150 % without braking resistor |
| Regulation loop | Frequency PI regulator |
| Motor slip compensation | Automatic whatever the load Adjustable Suppressable |
| Output voltage | <= power supply voltage |
| Tightening torque | Al1, Al2, Al3, AOV, AOC, R1A, R1B, R1C, R2A, R2B, LI1...LI6: 0.6 N.m L1, L2, L3, U, V, W, PA, PB, PA/+, PC/-: 2.5 N.m |
| Insulation | Electrical between power and control |
| Analogue input number | 3 |
| Analogue input type | AI1 configurable voltage 0...10 V, input voltage 30 V max, impedance: 30000 Ohm AI2 configurable voltage +/- 10 V, input voltage 30 V max, impedance: 30000 Ohm AI3 configurable current 0...20 mA, impedance: 250 Ohm |
| Sampling duration | AI1, AI2, AI3: 8 ms analog LI1...LI6: 4 ms discrete |
| Response time | AOV, AOC 8 ms for analog R1A, R1B, R1C, R2A, R2B 8 ms for discrete |
| Linearity error | +/- 0.2 % for output |
| Analogue output number | 1 |
| Analogue output type | AOC configurable current: 0...20 mA, impedance: 800 Ohm, resolution: 8 bits AOV configurable voltage: 0...10 V, impedance: 470 Ohm, resolution: 8 bits |
| Discrete input logic | Logic input not wired (LI1...LI4), < 13 V (state 1) Negative logic (source) (LI1...LI6), > 19 V (state 0) Positive logic (source) (LI1...LI6), < 5 V (state 0), > 11 V (state 1) |
| Discrete output number | 2 |
| Discrete output type | Configurable relay logic: (R1A, R1B, R1C) 1 NO + 1 NC - 100000 cycles Configurable relay logic: (R2A, R2B) NC - 100000 cycles |
| Minimum switching current | R1-R2 10 mA at 5 V DC |
| Maximum switching current | R1-R2: 2 A at 250 V AC inductive load, cos phi = 0.4 and L/R = 7 ms R1-R2: 2 A at 30 V DC inductive load, cos phi = 0.4 and L/R = 7 ms R1-R2: 5 A at 250 V AC resistive load, cos phi = 1 and L/R = 0 ms R1-R2: 5 A at 30 V DC resistive load, cos phi = 1 and L/R = 0 ms |
| Discrete input number | 6 |
| Discrete input type | (LI1...LI6) programmable at 24 V, 0…100 mA for PLC, impedance: 3500 Ohm |
| Acceleration and deceleration ramps | Linear adjustable separately from 0.1 to 999.9 s S, U or customized |
| Braking to standstill | By DC injection |
| Protection type | Input phase breaks: drive Line supply overvoltage and undervoltage safety circuits: drive Line supply phase loss safety function, for three phases supply: drive Motor phase breaks: drive Overcurrent between output phases and earth (on power up only): drive Overheating protection: drive Short-circuit between motor phases: drive Thermal protection: motor |
| Insulation resistance | >= 500 mOhm 500 V DC for 1 minute |
| Local signalling | 1 LED (red)drive voltage: Four 7-segment display unitsCANopen bus status: |
| Time constant | 5 ms for reference change |
| Frequency resolution | Analog input: 0.1...100 Hz Display unit: 0.1 Hz |
| Connector type | 1 RJ45 for Modbus/CANopen |
| Physical interface | RS485 multidrop serial link |
| Transmission frame | RTU |
| Transmission rate | 10, 20, 50, 125, 250, 500 kbps or 1 Mbps for CANopen 4800, 9600 or 19200 bps for Modbus |
| Number of addresses | 1…127 for CANopen 1…247 for Modbus |
| Number of drive | 127 for CANopen 31 for Modbus |
| Marking | CE |
| Operating position | Vertical +/- 10 degree |
| Outer dimension | 442 x 239 x 192 mm 300 x 210 x 170 mm 232 x 180 x 170 mm 402 x 239 x 192 mm |
| Height | 232 mm |
| Width | 180 mm |
| Depth | 172 mm |
| Net weight | 6.5 kg |
Environment
| Dielectric strength | 2410 V DC between earth and power terminals 3400 V AC between control and power terminals |
| Electromagnetic compatibility | 1.2/50 µs - 8/20 µs surge immunity test level 3 conforming to IEC 61000-4-5 Electrical fast transient/burst immunity test level 4 conforming to IEC 61000-4-4 Electrostatic discharge immunity test level 3 conforming to IEC 61000-4-2 Radiated radio-frequency electromagnetic field immunity test level 3 conforming to IEC 61000-4-3 |
| Standards | IEC 61800-5-1 IEC 61800-3 |
| Product certifications | GOST DNV NOM UL CSA C-Tick |
| Pollution degree | 2 |
| Protective treatment | TC |
| Vibration resistance | 1 gn (f= 13…150 Hz) conforming to EN/IEC 60068-2-6 1.5 mm (f= 3…13 Hz) conforming to EN/IEC 60068-2-6 |
| Shock resistance | 15 gn for 11 ms conforming to EN/IEC 60068-2-27 |
| Relative humidity | 5…95 % without condensation conforming to IEC 60068-2-3 5…95 % without dripping water conforming to IEC 60068-2-3 |
| Ambient air temperature for storage | -25…70 °C |
| Ambient air temperature for operation | -10…50 °C without (with protective cover on top of the drive) -10…60 °C with derating factor (without protective cover on top of the drive) |
| Operating altitude | <= 1000 m without 1000...3000 m with current derating 1 % per 100 m |
Contractual warranty
| Warranty | 18 months |
Shipping Notes
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4.1 ★★★★★
Based on 2338 reviews
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Product Reviews
★★★★★ 5
great read for underwriters of multifamily deals
Format: Kindle
Rob lays out a succinct and thorough summary of his underwriting process, questions industry standards while sharing his opinions, and discusses risk management and analyses for deals during the underwriting process. Highly recommend for newer and more seasoned underwriters and investors to build or sharpen multifamily underwriting fundamentals and details. He also shares his model as the example.
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Reviewed in the United States on September 27, 2023
★★★★★ 3
Needs more meat
Format: Paperback
A little on the light side of information provided. Some nuggets. OK value.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 16, 2022
★★★★★ 5
Full of useful information
Format: Paperback
As context, I've underwritten about 100 deals and attended some basic underwriting classes. Rob's book was very useful to me, both in helping me gain better skills in underwriting basics (stabilization time period and how unit renovations and rent bumps are modeled/phased-in as well as when to start applying rent escalator) as well as higher level topics, like partnership structures, sensitivity analyses, and judging the returns. In all of these higher level topics I learned several new topics (and calculations to add to my underwriting) and would guess that even experienced investors would pick up a few quality nuggets in these sections.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2020
★★★★★ 5
A Grounding, Practical, and Surprisingly Reassuring Guide for the Modern College Search
Format: Hardcover
Our family absolutely loves this book, having followed Jeff for many years, purchasing this was an easy choice. We’ve been deep in the college search process for a while now, and like many families, we spent a lot of time trying to balance ambition, fit, finances, outcomes, and the emotional side of it all. “Dream School” was one of the few resources that actually helped us calm down and make clearer decisions.
What stood out most is how realistic and grounded the book is. You'll keep wanting to go to the end to look at the list of schools, but read the book. It doesn’t push prestige for the sake of prestige, and it doesn’t pretend that college admissions follow a straight line. Instead, it helps you think honestly about what a “right fit” really means...academically, socially, financially, and emotionally. For our family, this gave us a framework to rationalize all the moving pieces rather than chasing names or getting overwhelmed by noise from online forums and comparison culture.
As we evaluated schools across different regions, majors, sizes, and price points, this book helped us step back and ask the right questions. It pushed us to think about values and outcomes instead of just rankings. It helped us understand why certain schools felt like better matches, even if they weren’t the ones everyone talks about on social media. Most importantly, it gave us permission to stop second-guessing ourselves and to trust the process we built together.
Anyone going through the modern admissions process knows it can become emotionally exhausting, with hyper-competitive acceptance rates, endless online commentary, and constant chats with ChatGPT, which tells me what I want to hear rather than the truth. This book eased a lot of that stress. It helped our family see the big picture, prioritize what truly matters, and make decisions with confidence rather than fear of missing out.
If you’re a parent or student trying to navigate the college search in a thoughtful, balanced way, I can’t recommend “Dream School” enough. It doesn’t just help you find the right college, it helps you remember why you’re doing this in the first place.
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Reviewed in the United States on December 6, 2025
★★★★★ 5
Parents of HS Students: READ THIS BOOK!
Format: Hardcover
A must-read book for parents navigating the "IVY OR BUST" aspirations of all top-performing high school students. Families simply can not afford the near-100K/year tuition for these institutions. It's unsustainable, and adding soul-crushing debt (before a career is even begun!) is not what parents want for our students. Enter Dream School: a guide to finding YOUR student's opportunity (and less expensive education) amid the noise and rah-rah of aggressive college recruiting. The book is a fast, comprehensive read which gives parents guidance and "permission" to consider schools with less name recognition/lower cost, but with high performance teaching and reasonable return on investment (ROI.) Remember the goal: a college degree for a happy, fulfilled student ready to enter the job market or grad school.
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Reviewed in the United States on September 12, 2025