V2 (24V)

Lewmar V2 Windlass 24V wiring diagram

24 V vertical V2 windlass. Lewmar issue 11 specifies a 900 W motor, 60 A working current and a 50 A breaker. Match the 24 V contactor/control box and full cable route; the 12 V V2 has different ratings.

Compatible systems
24 V
Continuous draw
60 A
Surge current
70 A

Wiring diagram

How the V2 windlass 24V is wired.

Open this example in Crimp to use your own parts and cable lengths. Review the assumptions and installation notes as you adapt the circuit.

Lewmar V2 Windlass 24V wiring example with 3 components: House bank, Battery disconnect, V2 windlass 24V. 3 cable connections. Crossings are not junctions.Battery disconnect B to V2 windlass 24V +: 10 mm² · 80 A fuse, 3 m one way. House bank − to V2 windlass 24V −: 10 mm², 3 m one way. House bank + to Battery disconnect A: 10 mm² · 80 A fuse, 30 cm one wayBattery disconnect B to V2 windlass 24V +: 10 mm² · 80 A fuse, 3 m one wayHouse bank − to V2 windlass 24V −: 10 mm², 3 m one wayHouse bank + to Battery disconnect A: 10 mm² · 80 A fuse, 30 cm one way24 V 200 Ah house bankHouse bank++−−Main Battery SwitchBattery disconnectABLewmar V2 Windlass 24VV2 windlass 24V++−−10 mm² · 80 A fuse10 mm²10 mm² · 80 A fuse
Lewmar V2 Windlass 24V wiring example with 3 components: House bank, Battery disconnect, V2 windlass 24V. 3 cable connections. Crossings are not junctions.Red = positive · dark = return · dashed = signal. Wire sizes and fuse ratings are example values; use the equipment instructions and actual installation lengths.
Edit this wiring example

Cable sizing for this example

Use the diagram as a starting point for your installation. Replace the example equipment and cable lengths with your own, and check the connections against your exact model's instructions.

3 m one way

24 V system

Wire
10 mm² · 8 AWG
Example fuse
80 A
Design current
60 A
Voltage drop
2.7%

Sized against ABYC E-11. The design current is the part's continuous draw. The length is one way; voltage drop includes an equal-length return.

Run-length and manufacturer assumptions

The editable example uses 3.048 m (10 ft) runs unless a shorter run is stated. Metric overviews round these to 3 m. Adapt the parts and lengths to your installation before choosing cable and protection.

Show sizes in AWG

Supporting parts

  1. 6.1 m total of 10 mm² (8 AWG) marine cable
  2. Terminations for 10 mm² cable, matched to the equipment's screw terminals, leads or studs
  3. 80 A fuse and holder on the positive run
  4. Heat-shrink, strain relief and terminal boots sized to the cable

Check stud sizes, fuse type, run length and how warm the space gets against the gear you actually have before you order.

Installation notes

Before you install.

Open a question for model-specific guidance and sources.

Verified against the manufacturer's documentation (rev. 65001201 issue 11), checked 2026-10-01. Manufacturer documentation →

Use the 24 V row of the manual

The V1–V6 issue 11 manual identifies the 24 V V2 with a 900 W motor. Pages 12 and 37 give 60 A working/normal current and a 50 A breaker. These figures replace the earlier catalog's unsupported 850 W description. They must not be transferred to the 12 V V2, whose motor and circuit protection differ.

The listed maximum pull and normal working load are separate ratings. A breaker selected for the manufacturer's intermittent motor duty is not a measurement of running current, so preserve the distinction when comparing protection with the planner's continuous-load calculation.

Include the matching contactor and controls

The canvas's two supply connections summarize a larger circuit. Manual section 5 includes the battery feed, protection, reversing contactor/control box, switch wiring and motor leads. The 24 V V2 row identifies the 50 A breaker 68000348 and the matching 24 V control parts. Check the equipment actually supplied before selecting a diagram; a 12 V contactor is not made suitable by sharing the windlass model name.

Place the isolator where it is reachable, protect the supply near the battery, and route control wiring separately from the motor circuit as shown. Inspect direction and stop behaviour before hauling an anchor.

Check voltage drop under load

The cable guide on page 12 uses total outgoing-plus-return length, including switchgear. Its 20 m example lists 10 mm² for the 24 V V2; this is a chart example, not a universal minimum for every route. Account for cable temperature rating, grouping and actual voltage drop. Page 37 specifically calls out low voltage as a cause of sluggish operation and motor damage.

The planner's surge and terminal ceiling are unverified assumptions. Neither the table's working current nor its thermal breaker establishes a guaranteed starting-current peak.

Complete the mechanical installation

The deck structure, drainage, chain fall and gypsy compatibility in sections 4 and 6 matter as much as the electrical feed. Use the vessel to approach the anchor rather than pulling the vessel with the windlass. Secure the rode to a suitable strong point and secure the stowed anchor independently. Isolate the windlass before clearing tangles or servicing its mechanism, and inspect it on the manual's service schedule.

Technical reference

Specifications and terminal map.

Check the model, ratings and connection points against your own unit before choosing installation hardware.

Catalog specification

24 V vertical V2 windlass. Lewmar issue 11 specifies a 900 W motor, 60 A working current and a 50 A breaker. Match the 24 V contactor/control box and full cable route; the 12 V V2 has different ratings.

Compatible systems
24 V
Continuous draw
60 A
Surge current
70 A

Terminal map

Catalog connection points, current direction and planning limits. Check the manufacturer's pinout and connector ratings before installation.

+

positive · input

70 A

−

negative · input

70 A
Sources and sizing method

Equipment specifications. Model details, ratings and terminal roles come from the catalog. Check your unit’s label and current manufacturer documentation for its exact revision.

Example sizing. Sized against ABYC E-11. Boats built to UK or EU rules answer to ISO 13297 — check these figures against it before you build. Results use the example current and run length shown above. Set your actual equipment, lengths and installation conditions in Crimp before choosing hardware.

Read how the sizing works

Next step

Plan your installation with V2 windlass 24V.

Open this example as a new project, or add this component to your existing diagram. Use your equipment and cable lengths to review the sizing.

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