DC regulated power supply
DF1721
DC regulated power supply. Explore the supplied catalogue record and request the current configuration, documentation and quotation for this model.
Reconstructed exterior
Every side,
square on.
Illustrative renders reconstructed from catalogue photographs; dimensions are estimated. Appearance and configuration may vary by version.
Interactive exterior
DF1721,
in the round.
Illustrative exterior model reconstructed from catalogue photographs. Appearance and configuration may vary by version.
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Illustrative exterior model. Appearance and configuration may vary by version; check against the current product specification.
Historical catalogue record
What the catalogue says.
What to confirm.
- Model
- DF1721
- Series
- DF172x
- Product category
- DC regulated power supply
- Output current
- 3A
- Surge current
- 5A
- Ripple voltage
- 15mV
- External package size
- 44.5 × 25.5 × 19.5 cm
- Net / gross weight
- 17 / 18.5 kg
- Pieces per carton
- 8
- Source
- Catalogue PDF pages 43–44
- Source
- Company website archive (2014)
- Source
- DIYTrade listing (2025)
- Current specifications & availability
- Confirm by enquiry
Features as printed in the catalogue
- Input voltage: AC 110V or 220V
- Output voltage: 13.8V DC
- 1.5% load regulation
- Short-circuit protection for the DC output
- Current limit protector for the AC input
- One hour continuous working time
- Suffix A: single 220V AC input; suffix B: single 110V AC input; suffix C: 24V DC input
Catalogue values are historical reference information, not confirmed current specifications. Confirm the exact model, ratings, input range and certification status before ordering.
