CrimpComponent folio · Engine · Bukh
DV20
Bukh DV20 — 20 HP / 14.7 kW @ 3000 RPM, 2-cyl 770 cc. 1.0 kW Bosch starter cranks at ~110 A (~220 A inrush); 55 A Bosch alternator standard. Heavy, long-lived Danish auxiliary — extremely common in Nordic sailboats and yacht-club rescue craft.
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Engine 20HP — Bukh DV20 · 3 terminals
01 — Reference run
A sizing result with its assumptions attached.
Conductor95 mm²3/0 AWG
Fuse300 Apositive run
Voltage drop1.0%3 m one way
Design current110 A12 V system
The Crimp engine applies its ordinary continuous-load headroom, voltage-drop budget, terminal clamp, and standard fuse ladder. The 3 m one-way run is a stated reference, not a universal installation prescription.
02 — Catalog specification
The part the engine actually sees.
- Continuous draw
- 110 A
- Rated output
- 55 A
- Surge current
- 220 A
- Canvas footprint
- 220 × 130 px
Terminal map
| Terminal | Polarity | Direction | Rating |
|---|---|---|---|
| Starter | positive | input | 400 A |
| Alt B+ | positive | output | 200 A |
| Block GND | ground | bidi | 400 A |
03 — Supporting parts
What belongs around it.
- 6 m total of 95 mm² (3/0 AWG) marine cable
- Four 95 mm² cable lugs matched to the equipment studs
- 300 A fuse and holder on the positive run
- Heat-shrink, strain relief, and terminal boots sized to the cable
See what it changes in your system
With JavaScript enabled, describe your existing boat, van, or off-grid system here. The model supplies topology; Crimp's engine computes the attachment, resized runs, checks, and supporting basket.