JD231 150A Heavy Duty Automotive Starter Relay 12V/24V DC Slow Engagement Solenoid Relay For Diesel Generator

Wide Application Range

• Diesel & gasoline standby generator sets, industrial ATS control cabinet starting system
• Excavators, wheel loaders, road rollers, forklifts and other construction machinery
• Heavy trucks, buses, agricultural tractors, combine harvesters, engineering vehicles
• Marine main/auxiliary engines, off-road vehicles, water pump power units
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Key Product Features

1. 150A High-Current Thick Copper Main Contacts
   Large contact surface, low contact resistance, strong arc ablation resistance, no contact welding or overheating under frequent high-current startup, perfectly bear the instantaneous large current of starter motor.
    
2. Slow Engagement Buffer Protection Design
   Gently drive the starter pinion to mesh with flywheel gear, effectively reduce gear impact wear, extend the service life of starter and engine flywheel ring gear, avoid gear tooth collapse failure.
    
3. Two Voltage Options: 12V / 24V DC
   Compatible with most vehicle and generator battery systems on the market, standard mounting hole spacing, direct bolt fixed installation without bracket modification, convenient for on-site maintenance replacement.
    
4. High-Temperature Anti-Corrosion Integrated Housing
   Color galvanized metal shell + flame retardant insulating base, dustproof, moisture-proof, anti-vibration, adapt to high temperature, dusty, bumpy harsh engine compartment working environment.
    
5. Built-In Overload & Anti-Arc Protection Structure
   Suppress instantaneous surge voltage during pull-in and release, protect generator controller, ignition switch and wiring harness from reverse electromotive force breakdown, reduce electrical failure rate of starting circuit.
    
6. Strict Factory Electrical Aging Test
   Each relay undergoes 100,000 times mechanical service life test, pull-in/release voltage calibration and high-current temperature rise inspection, stable startup performance and low failure rate.
    

Common Equipment Failures Solved

• Ignition key or controller switch is easily burned out due to direct bearing starter large current
• Intermittent startup failure: sometimes cranks normally, sometimes no response when turning the key
• Starter gear violently hits flywheel, resulting in abnormal knocking noise and gear tooth breakage
• Thin control wire overheats, melts insulation layer and causes short-circuit hidden danger
• Original relay coil burnout or contact sticking leads to starter continuous rotation and motor burnout