
ATV21HD18N4
Schneider Electric Altivar 21 variable speed drive, ATV21, 18.5kW 25HP, 480V, EMC filter class A, IP20.
Show Specifications
Main Characteristics
| Lifecycle status | Discontinued by the manufacturer |
|---|---|
| Range of Product | Altivar 21 |
| Product or Component Type | Variable speed drive |
| Product destination | Asynchronous motors |
| Product Specific Application | Pumps and fans in HVAC |
| Assembly style | With heat sink |
| Component name | ATV21 |
| EMC filter | Class A EMC filter integrated |
| Power supply voltage | 380...480 V - 15...10 % |
| Phase | 3 phase |
| Motor power kW | 18.5 kW |
| Maximum Horse Power Rating | 25 hp |
| Line current | 27.8 A 480 V; 34.8 A 380 V |
| Speed range | 1…10 |
| Transient overtorque | 120 % of nominal motor torque +/- 10 % 60 s |
| Asynchronous motor control profile | Constant voltage/frequency ratio with automatic IR compensation; Quadratic voltage/frequency ratio; Current flux vector control (FVC) without speed feedback; Energy saving ratio; Constant voltage/frequency ratio |
| Communication Port Protocol | Modbus |
| Type of polarization | No impedance |
| IP degree of protection | IP20 on upper part without blanking plate on cover EN/IEC 60529; IP20 on upper part without blanking plate on cover EN/IEC 61800-5-1; IP21 EN/IEC 60529; IP21 EN/IEC 61800-5-1; IP41 on upper part EN/IEC 60529; IP41 on upper part EN/IEC 61800-5-1 |
| Option card | Communication card APOGEE FLN; Communication card BACnet; Communication card LonWorks; Communication card METASYS N2 |
Technical Data
| Power supply voltage limits | 323…528 V |
|---|---|
| Power supply frequency | 50...60 Hz - 5...5 % |
| Power supply frequency limits | 47.5…63 Hz |
| Apparent power | 28.2 kVA 380 V |
| Maximum prospective line Isc | 22 kA |
| Maximum continuous output current | 37 A 380 V; 37 A 460 V |
| Maximum transient current | 40.7 A 60 s |
| Speed drive output frequency | 0.5…200 Hz |
| Nominal switching frequency | 8 kHz |
| Switching frequency | 6...16 kHz adjustable; 8...16 kHz with derating factor |
| Speed accuracy | +/- 10 % of nominal slip 0.2 Tn to Tn |
| Torque accuracy | +/- 15 % |
| Regulation loop | Adjustable PI regulator |
| Motor slip compensation | Not available in voltage/frequency ratio motor control; Adjustable; Automatic whatever the load |
| Diagnostic | 1 LED (red) for DC bus energized |
| Output voltage | <= power supply voltage |
| Insulation | Electrical between power and control |
| Recommended type of cable for mounting in an enclosure | With UL Type 1 kit 3 UL 508 cable 104 °F (40 °C), copper 75 °C / PVC; Without mounting kit 1 IEC cable 113 °F (45 °C), copper 70 °C / PVC; Without mounting kit 1 IEC cable 113 °F (45 °C), copper 90 °C / XLPE/EPR |
| Electrical connection | VIA, VIB, FM, FLA, FLB, FLC, RY, RC, F, R, RES terminal 0.004 in² (2.5 mm²) / 14 AWG; L1/R, L2/S, L3/T terminal 0.04 in² (25 mm²) / 3 AWG |
| Tightening torque | 5.3 lbf.in (0.6 N.m) VIA, VIB, FM, FLA, FLB, FLC, RY, RC, F, R, RES); 39.8 lbf.in (4.5 N.m), 40 lb.in L1/R, L2/S, L3/T) |
| Supply | Internal supply 24 V DC 21…27 V), <200 mA overload and short-circuit protection; Internal supply for reference potentiometer (1 to 10 kOhm) 10.5 V DC +/- 5 %, <10 mA overload and short-circuit protection |
| Analogue input number | 2 |
| Analogue input type | VIA switch-configurable current 0...20 mA 242 Ohm 11 bits; VIA switch-configurable voltage 0...10 V DC 24 V max 30000 Ohm 11 bits; VIB configurable PTC probe 0...6 probes 1500 Ohm; VIB configurable voltage 0...10 V DC 24 V max 30000 Ohm 11 bits |
| Sampling duration | F 2 ms +/- 0.5 ms discrete; R 2 ms +/- 0.5 ms discrete; RES 2 ms +/- 0.5 ms discrete; VIA 2 ms +/- 0.5 ms analog; VIB 2 ms +/- 0.5 ms analog |
| Response time | FLA, FLC 7 ms +/- 0.5 ms discrete; FLB, FLC 7 ms +/- 0.5 ms discrete; FM 2 ms +/- 0.5 ms analog; RY, RC 7 ms +/- 0.5 ms discrete |
| Accuracy | +/- 1 % FM) for a temperature variation 60 °C; +/- 0.6 % VIA) for a temperature variation 60 °C; +/- 0.6 % VIB) for a temperature variation 60 °C |
| Linearity error | FM +/- 0.2 % output; VIA +/- 0.15 % of maximum value input; VIB +/- 0.15 % of maximum value input |
| Analogue output number | 1 |
| Analogue output type | FM switch-configurable current 0...20 mA 500 Ohm 10 bits; FM switch-configurable voltage 0...10 V DC 470 Ohm 10 bits |
| Discrete output number | 2 |
| Discrete output type | Configurable relay logic FLA, FLC) NO - 100000 cycles; Configurable relay logic FLB, FLC) NC - 100000 cycles; Configurable relay logic RY, RC) NO - 100000 cycles |
| Minimum switching current | 3 mA 24 V DC configurable relay logic |
| Maximum switching current | 2 A 250 V AC inductive cos phi = 0.4 L/R = 7 ms FL, R); 2 A 30 V DC inductive cos phi = 0.4 L/R = 7 ms FL, R); 5 A 250 V AC resistive cos phi = 1 L/R = 0 ms FL, R); 5 A 30 V DC resistive cos phi = 1 L/R = 0 ms FL, R) |
| Discrete input type | F programmable 24 V DC level 1 PLC 3500 Ohm; R programmable 24 V DC level 1 PLC 3500 Ohm; RES programmable 24 V DC level 1 PLC 3500 Ohm |
| Discrete input logic | Negative logic (sink) F, R, RES), >= 16 V, = 11 V |
| Acceleration and deceleration ramps | Automatic based on the load; Linear adjustable separately from 0.01 to 3200 s |
| Braking to standstill | By DC injection |
| Protection type | Against input phase loss drive; Break on the control circuit drive; Input phase breaks drive; Line supply overvoltage and undervoltage drive; Line supply undervoltage drive; Overcurrent between output phases and earth drive; Overheating protection drive; Overvoltages on the DC bus drive; Short-circuit between motor phases drive; Thermal power stage drive; Motor phase break motor; Thermal protection motor; With PTC probes motor; Against exceeding limit speed drive |
| Insulation resistance | >= 1 mOhm 500 V DC for 1 minute |
| Frequency resolution | Analog input 0.024/50 Hz; Display unit 0.1 Hz |
| Connector Type | 1 RJ45 |
| Physical interface | 2-wire RS 485 |
| Transmission frame | RTU |
| Transmission Rate | 9600 bps or 19200 bps |
| Data format | 8 bits, 1 stop, odd even or no configurable parity |
| Number of addresses | 1…247 |
| Communication Service | Read device identification (43); Time out setting from 0.1 to 100 s; Monitoring inhibitable; Write multiple registers (16) 2 words maximum; Read holding registers (03) 2 words maximum; Write single register (06) |
| Marking | CE |
| Operating position | Vertical +/- 10 degree |
| Height | 13.0 in (329.5 mm) |
| Width | 9.6 in (245 mm) |
| Depth | 7.5 in (190 mm) |
| Net Weight | 25.68 lb(US) (11.65 kg) |
Environment & Certifications
| Noise level | 54 dB 86/188/EEC |
|---|---|
| Dielectric strength | 3535 V DC between earth and power terminals; 5092 V DC 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; Conducted radio-frequency immunity test level 3 conforming to IEC 61000-4-6; 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; Voltage dips and interruptions immunity test conforming to IEC 61000-4-11 |
| Standards | IEC 61800-3 environments 1 category C3; IEC 61800-3; IEC 61800-3 environments 1 category C1; UL Type 1; IEC 61800-3 environments 1 category C2; EN 61800-3 category C3; IEC 61800-3 environments 2 category C3; EN 61800-3 environments 1 category C2; EN 55011 class A group 1; EN 61800-3 environments 2 category C1; EN 61800-3; EN 61800-5-1; IEC 61800-3 category C2; IEC 61800-3 environments 2 category C2; IEC 61800-3 category C3; EN 61800-3 category C2; IEC 61800-5-1; IEC 61800-3 environments 2 category C1; EN 61800-3 environments 1 category C1; EN 61800-3 environments 1 category C3; EN 61800-3 environments 2 category C2; EN 61800-3 environments 2 category C3 |
| Product Certifications | NOM 117; UL; CSA; C-tick |
| Vibration resistance | 1 gn (f= 13…200 Hz) conforming to EN/IEC 60068-2-8; 1.5 mm (f= 3…13 Hz) conforming to EN/IEC 60068-2-6 |
| Shock resistance | 15 gn 11 ms IEC 60068-2-27 |
| Pollution degree | 2 IEC 61800-5-1 |
| Environmental characteristic | Classes 3C1 conforming to IEC 60721-3-3; Classes 3S2 conforming to IEC 60721-3-3 |
| Relative humidity | 5…95 % without condensation IEC 60068-2-3; 5…95 % without dripping water IEC 60068-2-3 |
| Ambient air temperature for operation | 14…104 °F (-10…40 °C) (without derating); 104…122 °F (40…50 °C) (with derating factor) |
| Ambient Air Temperature for Storage | -13…158 °F (-25…70 °C) |
| Operating altitude | <= 6561.68 ft (2000 m); 3280.84...9842.52 ft (1000...3000 m) limited to 2000 m for the Corner Grounded distribution network |
Packaging & Logistics
| Nbr. of units in pkg. | 1 |
|---|---|
| GTIN | 00785901433583 |
| Country of origin | ID |
Warranty
| Warranty (in months) | 18 |
|---|
Pairs well with
Worldwide delivery, dispatched from Erbil
Technical support before and after you order
Genuine parts from authorised manufacturers
Obsolete and hard-to-find items sourced

ATV21HD18N4
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Shipping
We ship worldwide from our warehouse in Erbil, Iraq, and deliver across Baghdad and all governorates. Stocked lines dispatch quickly; items sourced to order have their lead time confirmed in writing with your quote.
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Technical support
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WhatsApp +964 781 287 9696 or sales@alnajahpower.com.
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Pricing and quotes
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Contact us
Alnajah Power
Makhmur Str. 83, Erbil 44020, IraqPhone / WhatsApp: +964 781 287 9696
sales@alnajahpower.comSaturday to Thursday, 09:00 – 18:00.
FAQs
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