# 6303D-10 Topward DC Power Supply Used

**Additional Features:**

-   Output Voltage: 0-30V x 2
-   Output Current: 0-3A x 2
-   5V/5A constant-voltage output
-   10-turn Voltage control
-   Twin power output with tracking function for automatic selection of parallel or serial connection
-   Short-circuit protection against external input while providing constant voltage and constant current
-   Allows serial or parallel connection with the same power supply model

**5V Fixed Operation**

-   Load Regulation: < 10mV
-   Line Regulation: < 5mV
-   Ripple & Noise: < 2mVrms
-   Voltage Accuracy: 5V + 0.25V
-   Output Current: 5A

**Constant Voltage Characteristics**

-   Load Regulation: + 0.01% + 2 mV
-   Line Regulation: + 0.01% + 2 mV
-   Ripple & Noise: (< 200W) < 0.5mVrms
-   Ripple & Noise: (> 200W) < 1mVrms

**Constant Current Characteristics**

-   Load Regulation: (<200W) < 10mA
-   Load Regulation: (>200W) < 15mA
-   Line Regulation: + 0.01% + 2mA
-   Ripple & Noise: (< 200W) < 1mArms
-   Ripple & Noise: (> 200W) < 3mArms

**Display Accuracy**

-   Digital Display (D): < 0.1% + 2d 

**Programming Speed**

-   Rise Time (No Load): < 100mS; (Load): < 200mS (<6A), < 500mS (<10A), < 1S(> 10A) 
-   Fall Time (No Load): < 2.5S; (Load): < 250mS

-   Output Impedance: < 2m? + 2 µH
-   Recovery Time: < 100 µS to within 0.1% of set voltage (50% to 100% load change) 

**Functions**

-   Series Connection: Different models can be connected in series (< 240V)
-   Parallel Connection: Same models can be connected in parallel (< 24A) 

**Tracking Operation**

-   Tracking Error: + 0.2% + 10mV
-   Series Regulation: + 0.3% + 10mV

**Operation Mode**

-   Independent: Two independent outputs and 5V fixed output; Output from 0 to rating voltage and 0 to rating ampere 
-   Serial: Output from 0 to + rating voltage at rating ampere; Output from 0 to double rating voltage at rating ampere
-   Parallel: Output from 0 to double rating current at voltage rating
-   Power Source: ACV 100/120/220/240 + 10%, 50/60 Hz

The Topward 6303D-10 is a 205 W, 30V/3A x 2, 5V/5A DC Power Supply with a 10-turn Voltage Control Option.

## 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

- 6303D-10 Topward DC Power Supply Used

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> Source: [ValueTronics](https://valuetronics.com/products/6303d-10-topward-dc-power-supply-used)
> Updated: 2026-05-21