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8.1 Winch

Model: Warn Zeon 10-S

Mounting Location: Front bumper (verified compatible)

Pulling Capacity: 10,000 lbs (4,536 kg)

Motor: 12V DC series wound

Electrical Specifications

  • Peak Amperage Draw: 450A (at full load/stall - brief periods only)
  • Typical Operating Draw: 80-250A (most recovery operations)
  • Main Power Source: AUX battery (passenger wheel well - direct connection, no fuse/breaker)
  • See AUX Battery Distribution for wire specs (gauge, length, routing, voltage drop calculations)
  • System Voltage: 13.8V (alternator charging - engine running during winch operations)
  • Protection: None - direct connection (see justification below)

Circuit Protection - Engineering Justification

Design Decision: No external circuit breaker per WARN manufacturer specifications

Manufacturer Specification:

Protection Strategy:

  1. Internal Thermal Protection: Winch motor has integrated thermal cutoff
  2. Contactor Disconnect: Provides isolation when not in use
  3. Cable Sizing: 1/0 AWG rated 325A continuous, adequate for 450A brief peaks
  4. Duty Cycle: Winch operations are brief (10-30 seconds typical recovery)

Automotive Industry Standard:

  • Factory vehicle winch installations do NOT use external circuit breakers
  • Winch internal protection is designed for automotive fault scenarios
  • This differs from marine practice (ABYC E-11) which requires all circuits fused

Fault Scenarios Covered:

  • Motor Stall: Internal thermal protection trips before fire hazard
  • Cable Short: 1/0 AWG fuses open at ~800A+ (well above 450A peak current)
  • Contactor Weld: Manual disconnect at battery terminal provides emergency shutoff

Standards Applied: SAE J1128 (automotive), WARN manufacturer specifications

This is NOT an oversight - it is intentional adherence to manufacturer specifications and automotive best practices. See Standards Exceptions for complete documentation.

Contactor/Solenoid

  • Type: Warn Zeon 10-S integrated contactor (included with winch)
  • Location: Mounted on winch motor housing
  • Rating: 450A+ switching capability
  • Function: High-current switching for winch motor direction and power

Control System

Dual Control Setup: Dash rocker switch + handheld remote (both work simultaneously)

Dash Rocker Switch:

  • Type: Center-off momentary rocker switch (SPDT or DPDT)
  • Location: Dashboard physical switch panel
  • Function:
  • UP (momentary): Winch OUT (let out cable)
  • CENTER: Off (spring return to center)
  • DOWN (momentary): Winch IN (pull in cable)
  • Power: SafetyHub ATC-1 (15A fuse)
  • Use case: In-cab winch control (self-recovery, convenient operation from driver seat)

Handheld Remote:

  • Type: Warn factory wired remote (included with Zeon 10-S)
  • Function: IN/OUT directional control (same as dash rocker)
  • Connection: Plugs into winch control pack
  • Use case: Outside vehicle spotting (traditional winch operation with visual line of sight)

Control Architecture:

SafetyHub ATC-1 (15A) → Dash Rocker Switch ⟷ Handheld Remote (parallel) → Winch Contactor IN/OUT
                              ↑                      ↑
                           UP = OUT              Remote OUT button
                           DOWN = IN             Remote IN button

Both controls work simultaneously - either dash rocker OR remote can trigger winch IN/OUT

Wiring

Main Power Wiring:

See AUX Battery Distribution for wire specs (gauge, length, routing path).

  • Positive (+): AUX battery+ → winch contactor → winch motor (direct, no breaker)
  • Negative (-): AUX battery- → winch motor ground lug

Control Wiring:

  • Power Source: SafetyHub ATC-1 (15A fuse) - AUX battery powered
  • Dash Rocker: SafetyHub ATC-1 → Dash rocker switch → Winch contactor IN/OUT signals
  • Remote: Wired in parallel with dash rocker (IN and OUT signals)
  • Wire Gauge: 14 AWG (low-current control signals only, ~2A max)
  • Routing: SafetyHub (wheel well) → dash switch → through firewall → winch contactor (front bumper)
  • Remote Connection: Paralleled at winch contactor terminals (IN/OUT)
Circuit Source Protection Wire Gauge Destination Function
Main Power (+) AUX battery+ None (direct) See AUX Battery Distribution for wire specs Winch Contactor → Motor High-current power
Main Power (-) AUX battery- None See AUX Battery Distribution for wire specs Winch Motor Ground High-current return
Control Trigger Dash Rocker Switch SafetyHub ATC-1 (15A) 14 AWG Winch Contactor Low-current trigger
Remote Control Warn Remote Internal to winch Per Warn specs Winch Control Pack Directional control

Installation

Power Cable Routing:

See AUX Battery Distribution for cable specs and routing path.

  • Route: Passenger wheel well → along frame rail → front bumper (13 ft)
  • Protection: Split loom over entire run
  • Securing: P-clamps every 18" along frame rail
  • Grommets: Rubber grommets with sealant at body penetrations
  • Heat: Route away from exhaust components (minimum 6" clearance)

Winch Mounting:

  • Zeon 10-S fits front bumper (verified compatible)
  • Factory contactor mounted on winch motor housing
  • Ensure contactor is protected from direct water spray
  • Verify all connections are tight and corrosion-free

Control Switch Location:

  • Dash-mounted center-off momentary rocker switch
  • Easily accessible from driver's seat
  • Clear labeling: UP = OUT, DOWN = IN

Safety Considerations

Winch Safety

  • Never exceed winch rated capacity (10,000 lbs)
  • Always use proper recovery techniques and safety equipment
  • Keep hands and body clear of winch line under tension
  • Use tree savers and recovery equipment rated for load
  • Monitor battery voltage during extended winch operations

Electrical Safety

  • Winch power cables carry extremely high current (up to 450A)
  • Ensure all connections are tight and properly crimped
  • Never disconnect battery while winch is under load
  • Check cable insulation regularly for damage

Outstanding Items

None - all specifications determined.