CrimpComponent folio · Power source · Balmar
XT-250
High-output 250A alternator designed for sustained lithium charging with an external regulator (Wakespeed WS500 / Balmar MC-624). Wire and fuse for sustained near-rated output.
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Balmar XT-250 (Lithium) · 2 terminals
01 — Reference run
A sizing result with its assumptions attached.
Conductor4/0 AWG120 mm²
Fuse350 Apositive run
Voltage drop1.8%9.8 ft one way
Design current250 A12 V system
Sized against ABYC E-11 — the US reference, and what Transport Canada accepts as an alternative to TP 1332 for pleasure craft under 24 m. The Crimp engine applies its ordinary continuous-load headroom, voltage-drop budget, terminal clamp, and standard fuse ladder. The 9.8 ft one-way run is a stated reference, not a universal installation prescription.
02 — Catalog specification
The part the engine actually sees.
- Rated output
- 250 A
- Typical charge current
- 180 A
- Canvas footprint
- 210 × 115 px
Terminal map
| Terminal | Polarity | Direction | Rating |
|---|---|---|---|
| B+ | positive | output | 300 A |
| GND | ground | bidi | 300 A |
03 — Supporting parts
What belongs around it.
- 19.7 ft total of 4/0 AWG (120 mm²) marine cable
- Four 4/0 AWG cable lugs matched to the equipment studs
- 350 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.