# Programmable DC Power Supply Unit Unit UDP3305S-E — 4-channel, 328 W, CH1/CH2: 0–30V/5A; CH3: 0–6V/3A; CH4: 5V/2A; RS232/RS485/USB/LAN

**URL:** https://aio.lv/en/product--unit-udp3305s-e--11916965
**Data updated:** 2026-03-10 09:21 (EET)
**Category:** Miscellaneous repair tools
**Manufacturer:** Unit
**Manufacturer code:** UDP3305S-E
**EAN:** 6935750533451
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 530.49 €
**Prices and availability valid until:** 2026-07-06 23:59
**Price without VAT (21%):** 438.42 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--unit-udp3305s-e--11916965

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 01.07.2026 | free |
| Pickup points | 06.07.2026 | 1.99 EUR |
| Courier delivery to door | 06.07.2026 | 4.99 EUR |

## Summary description

Bench programmable DC power supply with four independent channels and 328 W total output. Channels 1 and 2 deliver 0–30 V at up to 5 A, channel 3 provides 0–6 V/3 A and channel 4 fixed 5 V/2 A. Resolution is 10 mV and 1 mA. Equipped with RS232, RS485, USB and LAN for remote control and integration, suitable for development, testing and laboratory use.

## Long description

Unit UDP3305S-E is a bench programmable DC power supply with four independent output channels and a combined maximum output power of 328 W. Channels 1 and 2 provide an adjustable range of 0–30 V at up to 5 A each, channel 3 offers 0–6 V at up to 3 A, and channel 4 supplies a fixed 5 V at 2 A. The supply features 10 mV voltage resolution and 1 mA current resolution and includes RS232, RS485, USB and LAN interfaces for remote control and integration into automated test systems.
Advantages
The Unit UDP3305S-E combines multiple independent channels in a single enclosure, enabling simultaneous powering of several circuits with different voltage and current requirements. High resolution for voltage and current settings supports precise adjustment during development and test procedures. Multiple communication interfaces (RS232, RS485, USB, LAN) allow flexible remote operation, data logging and integration with laboratory automation or production test setups. Built-in protections and independent channel control simplify safe testing workflows.
Suitable for
 Electronic development and prototyping where several voltage rails are required
 Functional testing of boards and modules with mixed voltage domains
 Laboratory measurements and educational electronics labs
 Integration into automated test benches and production test systems
Key specifications
 Total output power: 328 W
 Channel 1 and Channel 2: 0–30 V, up to 5 A each; 10 mV voltage resolution, 1 mA current resolution
 Channel 3: 0–6 V, up to 3 A; 10 mV voltage resolution, 1 mA current resolution
 Channel 4: fixed 5 V, up to 2 A; 10 mV voltage resolution, 1 mA current resolution
 Independent channel control with individual output monitoring
 Interfaces: RS232, RS485, USB, LAN for remote control and communication
 Bench enclosure suitable for laboratory and production environments
How to use
Connect the supply to mains power and power on using the front-panel switch. Configure desired output voltages and current limits for each channel using the front-panel controls or via remote interfaces. When connecting devices-under-test, observe correct polarity and ensure that combined load does not exceed the total power budget. Use the current limit settings to protect sensitive circuits and monitor output values on the front panel or through the communication interfaces. For automated sequences, program control commands over USB, RS232, RS485 or LAN according to the instrument's command set.
Usage recommendations
 To ensure reliable operation, allow adequate ventilation around the unit, avoid loading channels beyond their rated currents, and verify connections before applying power. For integration into automated systems, test remote-control scripts at low voltage/current first and log measurements to detect deviations early.

## FAQ

### How much does the Unit UDP3305S-E 4‑channel 328W programmable DC supply cost, and is it available for purchase?

The price is 530.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 01.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Unit UDP3305S-E 4‑channel 328W programmable DC supply be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Unit products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Unit service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11916965/68511183_large.webp