VFD for Compressors: Selection Guide
How to select and size a VFD for screw, reciprocating and centrifugal compressors, covering overload rating, turndown limits and energy savings.
The Schneider Electric VW3A3203 is an additional I/O module for the Altivar range, adding 2 configurable analog inputs, 6 discrete inputs and 2 discrete outputs at 24 V DC on a removable spring terminal block. It wires with 1.5 mm2 / 16 AWG conductors, includes reverse-polarity and short-circuit protection, and fits the Altivar Process ATV600, Altivar Machine ATV340, Altivar Process ATV900 and Altivar ATV610 drives.
| Product or Component Type | Additional I/O module |
|---|---|
| Range Compatibility | Altivar Process ATV600, Altivar Machine ATV340, Altivar Process ATV900, Altivar ATV610 |
| Input/Output Type | 2 analog input configurable voltage, current or probe, 6 discrete input, 2 discrete output |
| Analogue input number | 2 |
| Analogue input type | AI4, AI5 configurable current 0...20 mA/4...20 mA 0…1 ms 14 bits, AI4, AI5 configurable voltage - 10...10 V DC, 24 V max 20 kOhm 0…1 ms 14 bits, AI4, AI5 configurable PTC, Pt 100, Pt 1000 0…1 ms 14 bits |
| Discrete output number | 2 |
| Discrete output type | DQ11, DQ12) assignable logic 1 ms |
| Discrete output logic | DQ11, DQ12) negative, DQ11, DQ12) positive |
| Discrete input number | 6 |
| Discrete input type | DI11...DI16) programmable 250 Ohm 1 ms |
| Discrete input logic | Negative DI11...DI16), Positive DI11...DI16) |
| Discrete input current | 2.5 mA |
| Discrete output voltage | 24 V DC <= 30 V) assignable logic |
|---|---|
| Maximum output current | 100 mA, assignable logic |
| Discrete input voltage | 24 V DC <= 30 V)programmable |
| Electrical connection | Removable spring terminal block, 1.5 mm² / 16 AWG |
| Protection type | Reverse polarity protection digital input, Short-circuit protection output |
| Net Weight | 1.1 lb(US) (0.5 kg) |
| Warranty (in months) | 18 |
|---|
| Part number | VW3A3203 |
|---|---|
| Brand | Schneider Electric |
| Condition | New, factory sealed |
| Source | Schneider Electric and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 3606480702525 |
| Country of origin | ID |
|---|---|
| Shipping weight | 0.5 kg |
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 30 Oct 2026
No documents are on file for this part yet.
Ask us for the datasheetThe tariff (HS) code on file for VW3A3203 is 850490.
The EAN (GTIN) of VW3A3203 is 3606480702525.
VW3A3203 ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
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