# 3303A Topward DC Power Supply Used

**Additional Features:**

-   Voltage: 0-30V
-   Current: 0-3A
-   Power: 90W
-   2 Bulit-In Analog Displays
-   Constant Voltage/Current
-   Series/Parallel Available
-   Short Circuit/External Input Protection
-   Coarse And Fine Voltage Control
-   Compact Size
-   Line/Load Regulation ±0.01% +2 mV
-   Ripple 500 µV RMS (1 mV RMS @100 W)

The Topward 3303A is a DC Power Supply that has a rating of 30V/3A and a Power rating of 90W. The 3303A employs constant voltage, constant current output, short circuit and external input protection, and allows serial or parallel connection with the same power supply model.

## Details

- **Price:** 0.0 USD - 153.0 USD
- **Vendor:** Topward
- **Type:** Dc Supply
- **Tags:** DC Power Supply, Manufacturers, Power Supplies & Loads, product_manual_group_1, Product_used, Topward

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| None | 0.00 USD | In stock |
| NIST Traceable | 93.50 USD | In stock |
| NIST Traceable with Full Data | 110.50 USD | In stock |
| ISO IEC 17025 Accredited | 153.00 USD | In stock |

## Images

- 3303A Topward DC Power Supply Used

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> Source: [ValueTronics](https://valuetronics.com/products/3303a-topward-dc-power-supply-used)
> Updated: 2026-05-21