250A 12V IP67 Latching Winch Relay

Overall size: 84 mm long × 52 mm wide × 84 mm high. Unit weight: 418 g. Housing: black ABS — dimensionally stable, non-conductive, and resistant to automotive fluids. Protection rating: IP67 — independently tested for complete dust protection and water resistance up to 1 m depth for 30 minutes. Electrical specs: 12 V DC coil (12 V pull-in / 5 V release), 4.5 Ω resistance, 30 W power draw. Load rating: 12 V DC, 250 A maximum. Contact type: conversion (SPDT-style). Contact resistance: ≤ 50 mΩ. Switching speed: 15 ms for both contact closure and opening. Operational lifespan: minimum 100,000 cycles. Connection: precision-moulded pin terminals. Mounting: designed for direct plug-in into standard winch control harnesses — no screws, brackets, or adapters needed. This relay prioritises functional reliability over cosmetic features — its dual-coil latching design and IP67 sealing address the two most common causes of winch relay failure: coil burnout and moisture-induced contact oxidation. The ABS housing resists cracking under repeated vibration and thermal cycling, while the low-contact-resistance design preserves system voltage under load. Used by UK-based off-road clubs, recovery services, and commercial land management fleets where equipment uptime directly impacts safety and operational continuity.